{"title":"Off-Grid Batteries","description":"\u003cp\u003eOff-grid battery storage covers the deep-cycle and lithium products used to store energy independently of the mains supply — for solar PV, wind turbine charging, leisure vehicles, marine installations, and standalone backup systems. Unlike starter batteries, which deliver short high-current bursts to crank an engine, deep-cycle batteries are built to be discharged repeatedly and substantially without damaging the plates or cells, making them the correct choice for any application where energy is drawn steadily over hours rather than seconds. This collection brings together Gel and AGM (Absorbent Glass Mat) deep-cycle batteries alongside modern LiFePO4 lithium batteries from established brands including Pylon and Fogstar, covering the full range from budget-conscious lead-acid replacements to high-cycle-life lithium systems for demanding off-grid use.\u003c\/p\u003e\n\u003ch2\u003eSolar and Wind Charging Applications\u003c\/h2\u003e\n\u003cp\u003eBatteries paired with solar PV arrays or small wind turbines need to tolerate irregular, weather-dependent charging patterns and partial-state-of-charge cycling without sulphation or premature capacity loss. Gel batteries handle this well thanks to their sealed, maintenance-free construction and good tolerance of slow or interrupted charge cycles, though they require a charge controller with a gel-specific charge profile to avoid undercharging. AGM batteries offer a lower internal resistance and faster charge acceptance than Gel, which suits systems with variable solar input, but still require correctly configured MPPT or PWM charge controller settings for the battery chemistry. Lithium (LiFePO4) batteries such as the Fogstar Drift and Energy ranges and Pylon's lithium modules accept a much higher charge current, reach full charge faster on limited winter daylight hours, and maintain usable capacity far longer over repeated cycling — an important consideration where panel output is constrained by array size or orientation.\u003c\/p\u003e\n\u003ch2\u003eLeisure, Marine and Vehicle Applications\u003c\/h2\u003e\n\u003cp\u003eCaravans, campervans, motorhomes and boats present a specific set of demands: batteries must handle vibration, be installed in enclosed habitation spaces, and deliver consistent power to lighting, water pumps, fridges and other 12V loads between charging opportunities. Gel and AGM deep-cycle batteries are valve-regulated and non-spillable, making them safe for indoor and below-deck installation without a vented battery box, and are a familiar, cost-effective option for owners upgrading from a standard leisure battery. Lithium leisure batteries go further: at roughly half the weight of an equivalent lead-acid battery, offering close to full usable capacity rather than the 50% safe discharge limit typical of lead-acid, and supporting several thousand charge cycles rather several hundred, they suit anyone doing sustained off-grid touring, wild camping, or running higher-draw appliances such as induction hobs or diesel heaters from an inverter.\u003c\/p\u003e\n\u003ch2\u003eOff-Grid and Standalone Power Systems\u003c\/h2\u003e\n\u003cp\u003eFor static off-grid installations — cabins, workshops, outbuildings, or backup power for a property — battery selection is driven by required autonomy (days of reserve without charging), depth of discharge, and compatibility with the inverter or inverter-charger managing the system. Pylon's lithium battery modules are designed for this kind of stacked, expandable configuration, allowing installers to scale storage capacity in defined increments as the load or budget requires, with built-in battery management for cell balancing and protection. Gel batteries remain a valid lower-cost option for smaller standalone systems with modest daily cycling, particularly where budget takes priority over cycle life or weight.\u003c\/p\u003e\n\u003ch2\u003eSpecifying Guidance\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatch the charge controller to the battery chemistry.\u003c\/strong\u003e Lithium, Gel and AGM batteries each require different charge voltage profiles; using a controller set for the wrong chemistry will undercharge or shorten the life of the battery. Confirm the controller supports LiFePO4 profiles before specifying a lithium battery on an existing solar setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of discharge is not equal across chemistries.\u003c\/strong\u003e A 100Ah Gel or AGM battery should generally not be discharged below 50% to preserve cycle life, meaning only around 50Ah is usable day-to-day, whereas an equivalent lithium battery can typically be discharged to 80–100% DoD. Size the bank on usable capacity, not nameplate capacity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLithium batteries have low-temperature charging limits.\u003c\/strong\u003e Most LiFePO4 batteries, including those with internal heating pads, will not accept charge current below 0°C without the heater active — relevant for unheated outbuildings, boats laid up over winter, or vehicles left unused in cold weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\/parallel connection limits are chemistry- and brand-specific.\u003c\/strong\u003e Always check the manufacturer's maximum number of batteries that can be connected in series or parallel, and use matched batteries of the same age and capacity within a bank to avoid imbalance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfirm inverter and BMS compatibility before ordering.\u003c\/strong\u003e Not all inverters or charge controllers communicate correctly with every battery's internal BMS (Battery Management System), particularly for CAN bus-enabled lithium systems intended to talk to the inverter directly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eExplore our \u003ca href=\"https:\/\/claude.ai\/collections\/solar-panels\"\u003eSolar Panels\u003c\/a\u003e, \u003ca href=\"https:\/\/claude.ai\/collections\/inverters\"\u003eInverters\u003c\/a\u003e, and \u003ca href=\"https:\/\/claude.ai\/collections\/off-grid-solar-kits\"\u003eOff-Grid Solar Kits\u003c\/a\u003e collections to complete a full system, or see \u003ca href=\"https:\/\/claude.ai\/collections\/solar-cables-battery-cables-connectors\"\u003eSolar Cables, Battery Cables \u0026amp; Connectors\u003c\/a\u003e for the accessories needed to wire a battery bank correctly.\u003c\/p\u003e","products":[{"product_id":"pylon-12v-100ah-lithium-ion-battery-rt-series","title":"Pylon 12V 100Ah Lithium-Ion Battery RT Series","description":"\u003cdiv class=\"product-description\"\u003e\n\u003cp\u003eUpgrade your energy storage with the Pylon 12V 100Ah RT Series lithium-ion battery, engineered for superior performance in off-grid solar, marine, and backup power systems. This robust LiFePO4 battery delivers exceptional reliability, long lifespan, and effortless integration, making it the smart choice for homeowners seeking energy independence and trade professionals demanding durable solutions.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCold-Weather Ready:\u003c\/strong\u003e Integrated heating technology ensures reliable operation down to -40°C, keeping your power flowing in harsh UK winters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless Victron Integration:\u003c\/strong\u003e Direct CANbus connectivity with Victron GX devices for real-time monitoring and precise charge control, simplifying system management.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Safety:\u003c\/strong\u003e Built-in BMS safeguards against overcharge, over-discharge, and short circuits, providing peace of mind for critical applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEffortless Expansion:\u003c\/strong\u003e Auto-balancing enables safe parallel connections of multiple units without performance inconsistencies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProven Longevity:\u003c\/strong\u003e High-quality cells offer over 4500 cycles, delivering years of zero-maintenance power at a fraction of the weight of lead-acid alternatives.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Buy\u003c\/h2\u003e\n\u003cp\u003eInvest in the Pylon RT Series for unmatched value: enjoy triple the cycle life and double the usable capacity of traditional lead-acid batteries, with 60% less weight for easier installation. Perfect for reducing energy bills, ensuring blackout protection, or powering remote sites—backed by premium build quality that minimises downtime and maximises returns.\u003c\/p\u003e\n\u003ch2\u003eSuitable For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHomeowners with solar setups, caravans, or motorhomes needing reliable, lightweight storage.\u003c\/li\u003e\n\u003cli\u003eTrade professionals installing off-grid systems, marine vessels, or UPS solutions.\u003c\/li\u003e\n\u003cli\u003eAny application requiring high-discharge power for appliances like inverters, tools, or heating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f2f2f2;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left; border: 1px solid #ddd;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left; border: 1px solid #ddd;\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e12.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eNominal Capacity\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e100Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eChemistry\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eLiFePO4 (Lithium Iron Phosphate)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eMax Continuous Discharge\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e100A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003ePeak Discharge\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e200A (30 seconds)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eOperating Temperature (Charge)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0°C to 60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eOperating Temperature (Discharge)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e-20°C to 60°C (Heating to -40°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eCycle Life\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e\u0026gt;4500 cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eParallel Connection\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eUp to 4 units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eCommunication\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eCANbus, RS485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eIP Rating\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eIP67\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eWarranty\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e5 Years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Pylontech","offers":[{"title":"Default Title","offer_id":62952015561053,"sku":"RT12100G31","price":420.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/PylonRT12100G3112V100AhLithiumBattery.png?v=1772203843"},{"product_id":"deep-cycle-agm-batteries-banks-for-off-grid-solar-motorhomes-ups-systems-100ah-500ah","title":"AGM Battery Bank Range - 2V Cell Deep Cycle Systems for 12V, 24V \u0026 48V Large Power Storage for Off-Grid Solar","description":"\u003c!-- SEO Product Name: Photonic Universe AGM Battery Bank Range - 2V Cell Deep Cycle Systems for 12V, 24V \u0026 48V Large Power Storage --\u003e\n\u003cdiv style=\"font-size:16px; max-width:900px; margin:0 auto; font-family:Arial, Helvetica, sans-serif; color:#222; line-height:1.55;\"\u003e\n\n  \u003cp\u003ePhotonic Universe AGM Battery Banks are pre-assembled deep cycle storage systems built from \u003cstrong\u003e2V AGM cells connected exclusively in series\u003c\/strong\u003e, rather than the mixed series\/parallel wiring needed with 12V battery banks. This design gives each cell an \u003cstrong\u003eeven, balanced charge and discharge rate\u003c\/strong\u003e, resulting in a considerably longer service life and greater usable depth of discharge than banks built from standard 12V batteries. The range spans a \u003cstrong\u003e300Ah 12V bank\u003c\/strong\u003e up to a \u003cstrong\u003efully-racked 24kWh 48V system\u003c\/strong\u003e, so you can match capacity and voltage to your power system.\u003c\/p\u003e\n\n  \u003c!-- Six-tile stat strip --\u003e\n  \u003cdiv style=\"display:table; width:100%; border-collapse:collapse; margin:20px 0;\"\u003e\n    \u003cdiv style=\"display:table-row;\"\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eCell Chemistry\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e2V AGM\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eBank Voltages\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e12V \/ 48V\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eCapacity Range\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e3.6kWh – 24kWh\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eConnection\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003eSeries only\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eCycle Life\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e1000–1200 @ 30% DoD\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eWarranty\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e1 year\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Teal callout: informational --\u003e\n  \u003cdiv style=\"border-left:4px solid #008377CF; background:#e6f3f2; padding:12px 16px; margin:16px 0;\"\u003e\n    \u003cstrong style=\"color:#008377CF;\"\u003eWhy 2V Cells in Series?\u003c\/strong\u003e Building a bank from 2V cells wired purely in series avoids the complex series\/parallel wiring that 12V battery banks require. This keeps every cell charging and discharging at the same rate, giving \u003cstrong\u003emore stable cycling, longer service life, and deeper usable discharge\u003c\/strong\u003e than an equivalent bank of 12V batteries.\n  \u003c\/div\u003e\n\n  \u003c!-- Amber callout: variant selection --\u003e\n  \u003cdiv style=\"border-left:4px solid #d98c00; background:#fdf3e3; padding:12px 16px; margin:16px 0;\"\u003e\n    \u003cstrong style=\"color:#d98c00;\"\u003eChoosing the Right Bank:\u003c\/strong\u003e The three banks in this range differ in \u003cstrong\u003esystem voltage, total capacity, cell count, and maximum charging current\u003c\/strong\u003e — check the variant table below carefully, as the 48V system also requires the supplied metal racking and is significantly heavier than the 12V options.\n  \u003c\/div\u003e\n\n  \u003c!-- Red callout: safety --\u003e\n  \u003cdiv style=\"border-left:4px solid #cc0000; background:#fdecec; padding:12px 16px; margin:16px 0;\"\u003e\n    \u003cstrong style=\"color:#cc0000;\"\u003eWeight \u0026amp; Handling:\u003c\/strong\u003e These banks range from \u003cstrong\u003e102kg\u003c\/strong\u003e up to \u003cstrong\u003e720kg\u003c\/strong\u003e fully assembled. Plan for a suitably reinforced, ventilated installation location and appropriate lifting equipment or assistance, particularly for the 48V racked system.\n  \u003c\/div\u003e\n\n  \u003c!-- Feature grid --\u003e\n  \u003cdiv style=\"display:table; width:100%; border-collapse:collapse; margin:20px 0;\"\u003e\n    \u003cdiv style=\"display:table-row;\"\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eBalanced Series-Only Charging\u003c\/strong\u003e\u003cbr\u003e\n        Wiring exclusively in series means every cell sees the same charge and discharge current, avoiding the imbalance that can develop across parallel strings in 12V battery banks.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eDeeper Usable Discharge\u003c\/strong\u003e\u003cbr\u003e\n        Thicker metal plates inside the 2V cells allow more energy to be drawn from the bank than an equivalent 12V-battery bank of the same nominal capacity.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eMaintenance-Free AGM Cells\u003c\/strong\u003e\u003cbr\u003e\n        Electrolyte fully absorbed into a glass-fibre mat gives sealed, non-spillable, maintenance-free cells with less internal corrosion than flooded batteries.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eInstant Connection Hardware\u003c\/strong\u003e\u003cbr\u003e\n        Every bank is supplied with metal plate connectors sized to the specific system, so cells can be linked together without sourcing separate cabling.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eReady-to-Install Racking (48V)\u003c\/strong\u003e\u003cbr\u003e\n        The 48V system includes a sturdy dual-level metal racking unit, arranging all 24 cells for efficient use of floor space and straightforward installation.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eSuited to Demanding Applications\u003c\/strong\u003e\u003cbr\u003e\n        Long service life and strong depth-of-discharge performance make these banks well suited to solar and wind energy storage, off-grid households, UPS backup, and telecoms power.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Variant selector table --\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0;\"\u003e\n    \u003ctr\u003e\u003ctd colspan=\"5\" style=\"background:#008377CF; color:#fff; font-weight:bold; padding:8px;\"\u003eVariant Selector\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2; font-weight:bold;\"\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eProduct Code\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBank Voltage \/ Capacity\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eCell Configuration\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMax Charging Current\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBank Weight\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eAGM300AH-6SET\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e12V \/ 3.6kWh (300Ah)\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e6 x 2V, 300Ah cells\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e60A\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e102 kg\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eAGM500AH-6SET\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e12V \/ 6kWh (500Ah)\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e6 x 2V, 500Ah cells\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e100A\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e170 kg\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eAGM500AH-24SETR\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e48V \/ 24kWh (500Ah)\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e24 x 2V, 500Ah cells, with metal racking\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e100A\u003c\/td\u003e\n      \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e720 kg (incl. racking)\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/table\u003e\n\n  \u003c!-- Detailed spec table --\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0;\"\u003e\n    \u003ctr\u003e\u003ctd colspan=\"4\" style=\"background:#008377CF; color:#fff; font-weight:bold; padding:8px;\"\u003eAGM300AH-6SET — 12V 300Ah Bank (per-cell \/ bank)\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePer-Cell Capacity\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003e300Ah (10h rate) \/ 330Ah (20h rate)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePer-Cell Max Charging Current\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003e60A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eCycle Lifetime (30% D.O.D.)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003e1000 cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eInternal Resistance (full charge)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003e0.98 mΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eTerminal Type\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003eF18\/F31, with M10 bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003e-10°C to +40°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePer-Cell Dimensions (excl. terminals)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003e171 x 151 x 334 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePer-Cell Weight\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003e16.8 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBank Charging Voltage\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003eCycle use 14.1V \/ Standby use 13.7V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBank Temperature Compensation\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003eCycle use -30mV\/°C \/ Standby use -18mV\/°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBank Dimensions\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003e911 x 171 x 365 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBank Weight\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003e102 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\n    \u003ctr\u003e\u003ctd colspan=\"4\" style=\"background:#008377CF; color:#fff; font-weight:bold; padding:8px;\"\u003eAGM500AH-6SET — 12V 500Ah Bank (per-cell \/ bank)\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePer-Cell Capacity\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003e500Ah (10h rate) \/ 508Ah (20h rate)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePer-Cell Max Charging Current\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003e100A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eCycle Lifetime (30% D.O.D.)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003e1200 cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eTerminal Type\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003eM10 bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003e-10°C to +40°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePer-Cell Dimensions\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003e242 x 174 x 365 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePer-Cell Weight\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003e27 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBank Charging Voltage\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003eCycle use 14.1V \/ Standby use 13.7V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBank Temperature Compensation\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003eCycle use -30mV\/°C \/ Standby use -18mV\/°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBank Dimensions\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003e1150 x 250 x 370 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBank Weight\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003e170 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\n    \u003ctr\u003e\u003ctd colspan=\"4\" style=\"background:#008377CF; color:#fff; font-weight:bold; padding:8px;\"\u003eAGM500AH-24SETR — 48V 24kWh Racked Bank (per-cell \/ bank)\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePer-Cell Capacity\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003e500Ah (10h rate) \/ 508Ah (20h rate)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePer-Cell Max Charging Current\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003e100A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eCycle Lifetime (30% D.O.D.)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003e1200 cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eTerminal Type\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003eM10 bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003e-10°C to +40°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePer-Cell Dimensions\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003e242 x 174 x 365 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePer-Cell Weight\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003e27 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBank Charging Voltage\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003eCycle use 56.4V \/ Standby use 54.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBank Temperature Compensation\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003eCycle use -120mV\/°C \/ Standby use -72mV\/°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBank Dimensions (in racking)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003e1290 x 1140 x 670 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBank Weight (incl. racking)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003e720 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eRacking Design\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003eDual-level metal racking for space-efficient arrangement\u003c\/td\u003e\n\u003c\/tr\u003e\n\n    \u003ctr\u003e\u003ctd colspan=\"4\" style=\"background:#008377CF; color:#fff; font-weight:bold; padding:8px;\"\u003eAll Variants — Shared Specifications\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBattery Technology\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003eAGM (Absorbed Glass Mat), sealed lead-acid, series-connected cells\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePressure Control\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003eSafety valve installed\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eIncluded in Box\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003eCells, metal plate connectors, user manual (racking \u0026amp; rack installation manual for 48V system)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eWarranty\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\" colspan=\"3\"\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\n  \u003c!-- FAQ --\u003e\n  \u003cdiv style=\"margin-top:24px;\"\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eWhy use 2V cells instead of standard 12V batteries for a large bank?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003e2V cells wired purely in series avoid the complex series\/parallel wiring needed with 12V batteries, so every cell charges and discharges at an \u003cstrong\u003eeven, balanced rate\u003c\/strong\u003e. This gives the bank a considerably longer service life and lets more usable energy be drawn from the same nominal capacity.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eWhich bank should I choose for my system?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eMatch the bank's \u003cstrong\u003evoltage\u003c\/strong\u003e to your inverter or charge controller's system voltage first (12V or 48V), then choose the capacity that covers your daily energy use. The 48V AGM500AH-24SETR is the largest option at 24kWh and includes metal racking as standard, while the two 12V options (300Ah and 500Ah) suit smaller to mid-sized systems.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eWhat's included with each bank?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eEvery bank includes the \u003cstrong\u003e2V cells\u003c\/strong\u003e, \u003cstrong\u003emetal plate connectors\u003c\/strong\u003e sized for that specific system, and a \u003cstrong\u003edetailed user manual\u003c\/strong\u003e. The 48V racked system additionally includes a \u003cstrong\u003edual-level metal racking unit\u003c\/strong\u003e and a separate rack installation manual.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eHow much charging current do I need to supply?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eThe 300Ah 12V bank has a maximum charging current of \u003cstrong\u003e60A\u003c\/strong\u003e, while both the 500Ah 12V bank and the 500Ah 48V system are rated to \u003cstrong\u003e100A\u003c\/strong\u003e. Ensure your charge controller, inverter\/charger, or mains charger stays within these limits.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eHow heavy are these banks, and what installation space do I need?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eWeights range from \u003cstrong\u003e102kg\u003c\/strong\u003e for the smallest 12V bank to \u003cstrong\u003e720kg\u003c\/strong\u003e for the fully-racked 48V system. Check the dimensions in the variant table against your available installation space, and plan appropriate lifting and floor-loading arrangements before delivery.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eCan I add more cells later to increase capacity?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eThese banks are supplied as complete, pre-configured systems matched to a specific voltage and capacity. Extending an existing series string isn't generally recommended, as mixing new and used cells in series can lead to charge imbalance — it's best to plan your required capacity upfront.\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Photonic Universe","offers":[{"title":"300Ah - 3.6KW","offer_id":63230291280221,"sku":"AGM300AH-6SET","price":730.0,"currency_code":"GBP","in_stock":true},{"title":"500Ah - 6KW","offer_id":63230349443421,"sku":"AGM500AH-6SET","price":979.0,"currency_code":"GBP","in_stock":true},{"title":"500Ah - 24KW","offer_id":63230349476189,"sku":"AGM500AH-24SETR","price":3799.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/1530882630_25659800.png?v=1769672224"},{"product_id":"deep-cycle-agm-batteries-banks-for-off-grid-solar-motorhomes-ups-systems-100ah-500ah-1","title":"Deep Cycle AGM Batteries \u0026 Banks for Off-Grid Solar, Motorhomes \u0026 UPS Systems (100Ah - 500Ah)","description":"\u003c!-- SEO Product Name: Photonic Universe 100Ah 12V Deep Cycle AGM Battery - Leisure Battery for Motorhomes, Caravans, Boats \u0026 Off-Grid Solar --\u003e\n\u003cdiv style=\"font-size:16px; max-width:900px; margin:0 auto; font-family:Arial, Helvetica, sans-serif; color:#222; line-height:1.55;\"\u003e\n\n  \u003cp\u003eThe Photonic Universe 100Ah 12V AGM Battery is a \u003cstrong\u003edeep cycle leisure battery\u003c\/strong\u003e built using \u003cstrong\u003eAbsorbed Glass Mat (AGM)\u003c\/strong\u003e technology, where the electrolyte is held in a glass-fibre mat rather than free liquid. This makes the battery \u003cstrong\u003ecompletely sealed, non-spillable, and maintenance-free\u003c\/strong\u003e — a safe, low-fuss power source for motorhomes, caravans, campervans, boats, and off-grid or backup power systems. Its excellent solar charge acceptance also makes it a strong match for solar and wind charging setups.\u003c\/p\u003e\n\n  \u003c!-- Six-tile stat strip --\u003e\n  \u003cdiv style=\"display:table; width:100%; border-collapse:collapse; margin:20px 0;\"\u003e\n    \u003cdiv style=\"display:table-row;\"\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eNominal Voltage\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e12V\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eCapacity\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e100Ah (10h) \/ 105Ah (20h)\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eMax Charge Current\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e25A\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eCycle Life\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e1000–1100 @ 30% DoD\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eSelf-Discharge\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e\u0026lt;3% per month\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eWeight\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e30.0 kg\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Teal callout: informational --\u003e\n  \u003cdiv style=\"border-left:4px solid #008377CF; background:#e6f3f2; padding:12px 16px; margin:16px 0;\"\u003e\n    \u003cstrong style=\"color:#008377CF;\"\u003eWhat \"Deep Cycle\" Means:\u003c\/strong\u003e This battery is built for applications involving \u003cstrong\u003eregular deep discharge\u003c\/strong\u003e — such as running leisure loads in a caravan or boat overnight — rather than the brief high-current bursts of a standard starter battery. This makes it well suited to solar and wind energy storage, backup power, and off-grid systems.\n  \u003c\/div\u003e\n\n  \u003c!-- Amber callout: compatibility\/ordering --\u003e\n  \u003cdiv style=\"border-left:4px solid #d98c00; background:#fdf3e3; padding:12px 16px; margin:16px 0;\"\u003e\n    \u003cstrong style=\"color:#d98c00;\"\u003eCharging Current Limit:\u003c\/strong\u003e The battery's \u003cstrong\u003emaximum charging current is 25A\u003c\/strong\u003e. When sizing a solar charge controller, wind charge controller, or mains battery charger for this battery, make sure the charging current is set at or below this limit to avoid excessive heat build-up and premature ageing.\n  \u003c\/div\u003e\n\n  \u003c!-- Red callout: safety\/operating limits --\u003e\n  \u003cdiv style=\"border-left:4px solid #cc0000; background:#fdecec; padding:12px 16px; margin:16px 0;\"\u003e\n    \u003cstrong style=\"color:#cc0000;\"\u003eOperating Temperature Range:\u003c\/strong\u003e This battery is rated for operation between \u003cstrong\u003e+10°C and +40°C\u003c\/strong\u003e. Charging or discharging outside this range can reduce performance and shorten service life — consider battery insulation or a heated compartment for cold-weather or winter use.\n  \u003c\/div\u003e\n\n  \u003c!-- Feature grid --\u003e\n  \u003cdiv style=\"display:table; width:100%; border-collapse:collapse; margin:20px 0;\"\u003e\n    \u003cdiv style=\"display:table-row;\"\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eSealed AGM Construction\u003c\/strong\u003e\u003cbr\u003e\n        With electrolyte fully absorbed into a glass-fibre mat, the battery is non-spillable and maintenance-free, removing the need to check or top up electrolyte levels over its service life.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eFlexible Mounting Position\u003c\/strong\u003e\u003cbr\u003e\n        Unlike flooded lead-acid batteries, this AGM design doesn't need to stay strictly upright, giving more flexibility when fitting it into tight battery compartments on boats and vehicles.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eShock \u0026amp; Vibration Resistant\u003c\/strong\u003e\u003cbr\u003e\n        The glass-mat internal structure gives better resistance to shock and vibration than wet-cell batteries, suiting the constant motion of a moving vehicle or boat underway.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eStrong Deep-Discharge Recovery\u003c\/strong\u003e\u003cbr\u003e\n        The battery recovers well after being deeply discharged, an important trait for leisure use where the battery is routinely run down overnight and recharged the next day.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eLow Self-Discharge\u003c\/strong\u003e\u003cbr\u003e\n        At under 3% self-discharge per month, the battery holds its charge well during storage — useful for seasonal boats or motorhomes that aren't in constant use.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eReady to Install\u003c\/strong\u003e\u003cbr\u003e\n        Supplied with terminal bolts and washers plus a user manual, so the battery is ready to wire into your existing system without needing to source extra hardware.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Spec table --\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0;\"\u003e\n    \u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#fff; font-weight:bold; padding:8px;\"\u003eElectrical Specifications\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e12V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eNominal Capacity\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e100Ah (10-hour rate) \/ 105Ah (20-hour rate)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMaximum Charging Current\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e25A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eSelf-Discharge Rate\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u0026lt;3% per month\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eCycle Lifetime (at 30% D.O.D.)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1000–1100 cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePressure Control\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eSafety valve installed\u003c\/td\u003e\n\u003c\/tr\u003e\n\n    \u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#fff; font-weight:bold; padding:8px;\"\u003ePhysical \u0026amp; Build Specifications\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBattery Technology\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eAGM (Absorbed Glass Mat), sealed lead-acid\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eTerminal Type\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eF13 (bolts and washers included)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e+10°C to +40°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDimensions (L x W x H)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e331 x 173 x 217 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e30.0 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eTypical Service Life\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e3–5 years typical, up to 6–8 years with good care\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eIncluded in Box\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBattery, user manual, terminal bolts and washers\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eWarranty\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\n  \u003c!-- FAQ --\u003e\n  \u003cdiv style=\"margin-top:24px;\"\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eWhat does AGM mean, and why is it better than a standard wet-cell battery?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eAGM stands for \u003cstrong\u003eAbsorbed Glass Mat\u003c\/strong\u003e — the electrolyte is absorbed into a glass-fibre mat instead of sitting as free liquid. This makes the battery sealed, non-spillable, and maintenance-free, with less internal corrosion and degradation than a standard wet-cell battery, giving it a longer service life.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eIs this battery suitable for a solar charging setup?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eYes — this battery has \u003cstrong\u003eexcellent solar charge acceptance\u003c\/strong\u003e and is a common choice for solar charging kits. Just make sure your solar charge controller's output current doesn't exceed the battery's \u003cstrong\u003e25A maximum charging current\u003c\/strong\u003e.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eDoes this battery need to be kept upright?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eNo — one of the benefits of AGM construction is that the battery's \u003cstrong\u003eposition doesn't have to be upright at all times\u003c\/strong\u003e, giving more flexibility for fitting in awkward spaces compared with a flooded lead-acid battery.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eHow long will this battery last?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eTypical service life is \u003cstrong\u003e3–5 years\u003c\/strong\u003e, though with good care — avoiding deep over-discharge and staying within the rated operating temperature — it can last \u003cstrong\u003e6–8 years\u003c\/strong\u003e. Cycle life is rated at 1000–1100 cycles at 30% depth of discharge.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eWhat's included when I buy this battery?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eThe battery is supplied in a carton box along with a \u003cstrong\u003euser manual\u003c\/strong\u003e and the \u003cstrong\u003eterminal bolts and washers\u003c\/strong\u003e needed to connect it, so it's ready to wire straight into your system.\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Photonic Universe","offers":[{"title":"Default Title","offer_id":63230393876829,"sku":"AGM100AH","price":197.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/DeepCycleAGMBatteries_BanksforOff-GridSolar_Motorhomes_UPSSystems.jpg?v=1784818359"},{"product_id":"200ah-12v-lifepo4-lithium-battery-for-solar-off-grid-leisure","title":"200Ah 12V Gel Deep Cycle Battery - Leisure Battery for Motorhomes, Caravans \u0026 Boats","description":"\u003cdiv style=\"font-size:16px; max-width:900px; margin:0 auto; font-family:Arial, Helvetica, sans-serif; color:#222; line-height:1.55;\"\u003e\n\n  \u003cp\u003eThe Photonic Universe 200Ah 12V Gel Battery is a \u003cstrong\u003eValve Regulated Lead Acid (VRLA) deep cycle battery\u003c\/strong\u003e using a gel-type electrolyte, giving \u003cstrong\u003enon-spillable, completely sealed, maintenance-free\u003c\/strong\u003e operation. With double the capacity of the 100Ah version, it suits larger leisure power demands in motorhomes, caravans, and boats, as well as off-grid, backup, and combined solar\/wind energy storage.\u003c\/p\u003e\n\n  \u003c!-- Six-tile stat strip --\u003e\n  \u003cdiv style=\"display:table; width:100%; border-collapse:collapse; margin:20px 0;\"\u003e\n    \u003cdiv style=\"display:table-row;\"\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eNominal Voltage\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e12V\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eCapacity\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e200Ah (10h) \/ 205Ah (20h)\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eMax Charge Current\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e40A\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eSelf-Discharge\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e\u0026lt;1% per month\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eOperating Range\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e-10°C to +50°C\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eWeight\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e61.5 kg\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Teal callout: informational --\u003e\n  \u003cdiv style=\"border-left:4px solid #008377CF; background:#e6f3f2; padding:12px 16px; margin:16px 0;\"\u003e\n    \u003cstrong style=\"color:#008377CF;\"\u003eWhat Makes Gel Different from AGM:\u003c\/strong\u003e Gel batteries use a thickened gel electrolyte rather than a glass-fibre mat, giving a \u003cstrong\u003ewider working temperature range\u003c\/strong\u003e (performing well down to -10°C) and a \u003cstrong\u003elower self-discharge rate\u003c\/strong\u003e than typical AGM batteries.\n  \u003c\/div\u003e\n\n  \u003c!-- Amber callout: charging\/weight --\u003e\n  \u003cdiv style=\"border-left:4px solid #d98c00; background:#fdf3e3; padding:12px 16px; margin:16px 0;\"\u003e\n    \u003cstrong style=\"color:#d98c00;\"\u003eCheck Charging Current and Handling Weight:\u003c\/strong\u003e This battery's \u003cstrong\u003emaximum charging current is 40A\u003c\/strong\u003e — confirm your charge controller or charger stays within this limit and uses a Gel-compatible charge profile. At \u003cstrong\u003e61.5kg\u003c\/strong\u003e, plan for adequate support and two-person handling when installing or removing this battery.\n  \u003c\/div\u003e\n\n  \u003c!-- Feature grid --\u003e\n  \u003cdiv style=\"display:table; width:100%; border-collapse:collapse; margin:20px 0;\"\u003e\n    \u003cdiv style=\"display:table-row;\"\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eSealed Gel Construction\u003c\/strong\u003e\u003cbr\u003e\n        Completely sealed and maintenance-free, with no electrolyte top-ups required, and reduced internal corrosion and degradation compared with a standard wet-cell battery.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eWide Working Temperature Range\u003c\/strong\u003e\u003cbr\u003e\n        Performs well in cold conditions down to \u003cstrong\u003e-10°C\u003c\/strong\u003e, suiting boats and vehicles used through UK winters where temperatures regularly drop.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eVery Low Self-Discharge\u003c\/strong\u003e\u003cbr\u003e\n        At under 1% per month, this battery retains its charge exceptionally well during storage periods between trips or seasonal use.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eHigher Capacity for Bigger Loads\u003c\/strong\u003e\u003cbr\u003e\n        At 200Ah, this battery supports higher daily energy demands than the 100Ah version, suiting larger leisure setups with more onboard appliances.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eStrong Deep-Discharge Recovery\u003c\/strong\u003e\u003cbr\u003e\n        Recovers well after being deeply discharged, suiting leisure use where the battery is run down overnight and recharged the next day.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eLong Service Life\u003c\/strong\u003e\u003cbr\u003e\n        Typically lasts more than 5 years, and up to 10 years with good care, backed by resistance to shock and vibration for mobile installations.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Spec table --\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0;\"\u003e\n    \u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#fff; font-weight:bold; padding:8px;\"\u003eElectrical Specifications\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e12V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eNominal Capacity\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e200Ah (10-hour rate) \/ 205Ah (20-hour rate)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMaximum Charging Current\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e40A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eSelf-Discharge Rate\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u0026lt;1% per month\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eCycle Lifetime (at 30% D.O.D.)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1200–1300 cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePressure Control\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eSafety valve installed\u003c\/td\u003e\n\u003c\/tr\u003e\n\n    \u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#fff; font-weight:bold; padding:8px;\"\u003ePhysical \u0026amp; Build Specifications\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBattery Technology\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eGel (VRLA), sealed lead-acid\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eTerminal Type\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eF24 (bolts and washers included)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e-10°C to +50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDimensions (L x W x H)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e523 x 239 x 243 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e61.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eTypical Service Life\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMore than 5 years typical, up to 10 years with good care\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eIncluded in Box\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBattery, user manual, terminal bolts and washers\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eWarranty\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\n  \u003c!-- FAQ --\u003e\n  \u003cdiv style=\"margin-top:24px;\"\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eWhat's the difference between this and the 100Ah Gel battery?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eThis 200Ah battery offers roughly double the capacity of the 100Ah version, supporting a \u003cstrong\u003ehigher maximum charging current of 40A\u003c\/strong\u003e (versus 20A), but it's also significantly heavier at \u003cstrong\u003e61.5kg\u003c\/strong\u003e compared with 30.3kg, and uses larger F24 terminals.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eIs this battery suitable for a solar charging setup?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eYes — this battery has excellent solar charge acceptance. Make sure your solar charge controller's output current doesn't exceed the battery's \u003cstrong\u003e40A maximum charging current\u003c\/strong\u003e, and that the controller supports a Gel-specific charge profile if available.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eDoes this battery cope well with cold weather?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eYes — Gel batteries have a wider working temperature range than typical AGM batteries and perform well in cold conditions down to \u003cstrong\u003e-10°C\u003c\/strong\u003e, suiting winter use in a boat or motorhome.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eHow heavy is this battery, and how should I handle it?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eThis battery weighs \u003cstrong\u003e61.5kg\u003c\/strong\u003e, so plan for a well-supported, ventilated mounting location and consider two-person lifting when installing or removing it, particularly in confined boat or vehicle battery compartments.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eHow long will this battery last?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eTypical service life is \u003cstrong\u003emore than 5 years\u003c\/strong\u003e, and with good care it can last up to \u003cstrong\u003e10 years\u003c\/strong\u003e. Cycle life is rated at 1200–1300 cycles at 30% depth of discharge.\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Photonic Universe","offers":[{"title":"Default Title","offer_id":63230601986397,"sku":"LFP12-200","price":430.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/200Ah12VLithiumBatteryforLeisure_Solar_WindandOff-gridapplications.jpg?v=1784819425"},{"product_id":"tbb-power-105ah-12v-lifepo4-lithium-battery-with-heating-200a-bms-leisure-solar-off-grid","title":"TBB Power 105Ah 12V LiFePO4 Lithium Battery with Heating \u0026 200A BMS - Leisure, Solar \u0026 Off-Grid","description":"\u003cdiv style=\"font-size:16px; max-width:900px; margin:0 auto; font-family:Arial, Helvetica, sans-serif; color:#222; line-height:1.55;\"\u003e\n\n  \u003cp\u003eThe TBB Power TBB-M12100 (M12-100\/P) is a \u003cstrong\u003e105Ah 12V Lithium Iron Phosphate (LiFePO4) battery\u003c\/strong\u003e built for leisure, marine, and off-grid power systems. This \"P\" model is TBB's newest generation, featuring a \u003cstrong\u003ebuilt-in 200A-rated BMS\u003c\/strong\u003e, \u003cstrong\u003eintegrated low-temperature heating\u003c\/strong\u003e, and \u003cstrong\u003eparallel expandability\u003c\/strong\u003e up to 8 units — combining strong discharge performance with the safety and longevity of intelligent battery management.\u003c\/p\u003e\n\n  \u003c!-- Six-tile stat strip --\u003e\n  \u003cdiv style=\"display:table; width:100%; border-collapse:collapse; margin:20px 0;\"\u003e\n    \u003cdiv style=\"display:table-row;\"\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eNominal Voltage\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e12.8V\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eCapacity\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e105Ah \/ 1.34kWh\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eCycle Life\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e3,000 cycles @ 100% DoD\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eMax Discharge\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e200A (13 min)\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eWeight\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e11 kg\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eWarranty\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e5 years\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Teal callout: informational --\u003e\n  \u003cdiv style=\"border-left:4px solid #008377CF; background:#e6f3f2; padding:12px 16px; margin:16px 0;\"\u003e\n    \u003cstrong style=\"color:#008377CF;\"\u003eIntegrated Low-Temperature Heating:\u003c\/strong\u003e When connected to an external power source (mains, solar, or vehicle engine) below 2°C, the battery's \u003cstrong\u003ebuilt-in heating film automatically warms the cells\u003c\/strong\u003e to allow safe charging — taking approximately \u003cstrong\u003e90 minutes to heat from -20°C to a chargeable temperature\u003c\/strong\u003e. This lets the battery be used through cold winters without manual intervention.\n  \u003c\/div\u003e\n\n  \u003c!-- Amber callout: parallel\/compatibility --\u003e\n  \u003cdiv style=\"border-left:4px solid #d98c00; background:#fdf3e3; padding:12px 16px; margin:16px 0;\"\u003e\n    \u003cstrong style=\"color:#d98c00;\"\u003eParallel Connection Only — Same Brand and Batch:\u003c\/strong\u003e Up to \u003cstrong\u003e8 units can be connected in parallel\u003c\/strong\u003e for a total of 12V 840Ah, but series connection is prohibited for this model. Only use batteries of the same brand, model, cycle life, capacity, and SOC status together in parallel — mixing different batteries, ages, or manufacturers is not supported and can cause imbalance.\n  \u003c\/div\u003e\n\n  \u003c!-- Red callout: safety --\u003e\n  \u003cdiv style=\"border-left:4px solid #cc0000; background:#fdecec; padding:12px 16px; margin:16px 0;\"\u003e\n    \u003cstrong style=\"color:#cc0000;\"\u003eCharging Voltage and Wiring:\u003c\/strong\u003e Use a charger set to \u003cstrong\u003e14.0–14.2V\u003c\/strong\u003e — voltages outside this range will trigger the BMS's high or low voltage protection. All positive and negative terminal connections must be torqued to \u003cstrong\u003e12 N·m\u003c\/strong\u003e and checked for secure, tight wiring to avoid overheating at the terminals.\n  \u003c\/div\u003e\n\n  \u003c!-- Feature grid --\u003e\n  \u003cdiv style=\"display:table; width:100%; border-collapse:collapse; margin:20px 0;\"\u003e\n    \u003cdiv style=\"display:table-row;\"\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eHigh-Performance 200A BMS\u003c\/strong\u003e\u003cbr\u003e\n        The built-in battery management system protects against overcharge, over-discharge, over-current, short circuit, and both high and low temperature conditions, with automatic cell voltage balancing and cycle life tracking.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eStrong Burst Discharge Capability\u003c\/strong\u003e\u003cbr\u003e\n        Rated for 100A continuous discharge, with the ability to sustain 150A for 30 minutes or 200A for 13 minutes — useful for appliances or inverters with high momentary current demands.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eAutomatic Wake-Up on Charge\u003c\/strong\u003e\u003cbr\u003e\n        If the battery has shut down, detecting an external charging voltage above 14V will automatically wake it and allow charging while still blocking discharge, helping recovery from deep discharge events.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eDry Contact Shutdown Control\u003c\/strong\u003e\u003cbr\u003e\n        A dedicated dry contact port allows the battery to be completely switched off remotely, cutting standby consumption to under 0.1mA — ideal for long-term storage or an emergency cut-off point.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eOptional Display \u0026amp; Bluetooth Monitoring\u003c\/strong\u003e\u003cbr\u003e\n        Pairs with the optional TBB-MCK display panel for on-battery voltage, current and SOC readouts, or the TBB-DTU Bluetooth module for wireless monitoring via the TBB Battery app.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eWide Operating Temperature Range\u003c\/strong\u003e\u003cbr\u003e\n        Functions from -30°C to +60°C on discharge, maintaining good cycle life and discharge performance even in demanding hot or cold climates.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Spec table --\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0;\"\u003e\n    \u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#fff; font-weight:bold; padding:8px;\"\u003eElectrical Specifications\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e12.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eNominal Capacity\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e105Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eNominal Energy\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1.34 kWh\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eCharging Voltage\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e14.0–14.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eRecommended Charge Current\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e50A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMaximum Charge Current\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e100A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eContinuous Discharge Current\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e100A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMaximum Discharge Current\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e150A (30 min) \/ 200A (13 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eCycle Life\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u0026gt;3,000 cycles (0.5C, 100% DoD, 25°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMaximum Parallel Units\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e8 (up to 12V 840Ah total)\u003c\/td\u003e\n\u003c\/tr\u003e\n\n    \u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#fff; font-weight:bold; padding:8px;\"\u003eThermal \u0026amp; Environmental Specifications\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eCharge Temperature\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e2°C to +60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDischarge Temperature\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e-30°C to +60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eHeating Time (-20°C to Chargeable)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eApprox. 90 minutes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eStorage Temperature (\u0026lt;1 month)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e-20°C to +45°C, 20–80% SOC, \u0026lt;65% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eStorage Temperature (\u0026lt;6 months)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e-20°C to +35°C, 20–80% SOC, \u0026lt;65% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eStorage Self-Discharge Rate\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u0026lt;3% per month\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eOperating Humidity\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e10–90% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eIP Rating\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\n    \u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#fff; font-weight:bold; padding:8px;\"\u003ePhysical Specifications \u0026amp; Certification\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBattery Chemistry\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eLiFePO4 (Lithium Iron Phosphate)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eTerminal Type\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eM8 bolt terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eTerminal Torque\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e12 N·m\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eStandby Power Consumption (On)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u0026lt;50mA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eStandby Power Consumption (Off)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u0026lt;0.1mA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDimensions (L x W x H)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e310 x 165 x 187 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e11 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eCertifications\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eCE, UN38.3, E-mark\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eShipping Classification\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eUN3480 (Class 9 dangerous goods)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eIncluded in Box\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBattery, battery switch short wires, user manual, M6×20 bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eWarranty\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e5 years\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\n  \u003c!-- FAQ --\u003e\n  \u003cdiv style=\"margin-top:24px;\"\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eHow does the built-in heating function work?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eBelow 2°C, the battery reports a low-temperature charge fault and won't charge directly. Once an external charger is connected at \u003cstrong\u003e14.0–14.2V\u003c\/strong\u003e, the internal heating film automatically activates and warms the cells — taking around \u003cstrong\u003e90 minutes to heat from -20°C\u003c\/strong\u003e to a temperature that allows normal charging.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eCan I connect multiple batteries together for more capacity?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eYes — up to \u003cstrong\u003e8 units can be connected in parallel\u003c\/strong\u003e, giving a total of 12V 840Ah. Series connection is not supported on this model. When paralleling, only use batteries of the \u003cstrong\u003esame brand, model, cycle life, capacity, and SOC status\u003c\/strong\u003e to keep the batteries balanced.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eWhat happens if the battery over-discharges and shuts down?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eIf the battery hits its over-discharge protection threshold and isn't charged within 10 minutes, it will shut down. To wake it, toggle the battery switch (or MEH-B rocker switch) off and then on, and charge within 10 minutes. If it won't wake, connect a charger set to \u003cstrong\u003e14.0V or greater\u003c\/strong\u003e — the battery will wake itself and begin charging once it detects that voltage.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eHow do I monitor the battery's status?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eStatus can be checked via the onboard SOC indicator LEDs, or with the optional \u003cstrong\u003eTBB-MCK display panel\u003c\/strong\u003e for local voltage\/current\/SOC readouts. For wireless monitoring, the optional \u003cstrong\u003eTBB-DTU Bluetooth module\u003c\/strong\u003e connects to the TBB Battery app (iOS and Android) to show SOC, voltage, current, and any active alarms remotely.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eHow should I store this battery long-term?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eCharge to \u003cstrong\u003e80% SOC\u003c\/strong\u003e before storage, disconnect the battery switch and any display unit, and fit the terminal protective covers. Recharge to 80% SOC every 3 months. Ideal storage conditions are 0°C to +35°C at 20–80% SOC and under 65% relative humidity.\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"TBB Power","offers":[{"title":"Default Title","offer_id":65349132779869,"sku":"TBB-M12100","price":450.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/TBBPowerTBB-M12100_M12-100P_isa105Ah12VLithiumIronPhosphate_LiFePO4_battery.jpg?v=1784828270"},{"product_id":"pu-500ah-2v-deep-cycle-agm-battery-cell-for-12v-24v-48v-bank-systems","title":"500Ah 2V Deep Cycle AGM Battery Cell - For 12V\/24V\/48V Bank Systems","description":"\u003c!-- SEO Product Name: Photonic Universe 500Ah 2V Deep Cycle AGM Battery Cell - For 12V\/24V\/48V Bank Systems --\u003e\n\u003cdiv style=\"font-size:16px; max-width:900px; margin:0 auto; font-family:Arial, Helvetica, sans-serif; color:#222; line-height:1.55;\"\u003e\n\n  \u003cp\u003eThe Photonic Universe 500Ah 2V AGM Battery is a single \u003cstrong\u003e2V deep cycle cell\u003c\/strong\u003e designed to be combined with others to build a \u003cstrong\u003ebespoke 12V, 24V, or 48V energy storage bank\u003c\/strong\u003e. It's also supplied as a direct \u003cstrong\u003ereplacement cell\u003c\/strong\u003e for existing systems already built from 500Ah 2V AGM batteries. Like other AGM designs, all electrolyte is absorbed into a glass-fibre mat, making the battery \u003cstrong\u003enon-spillable, completely sealed, and maintenance-free\u003c\/strong\u003e.\u003c\/p\u003e\n\n  \u003c!-- Six-tile stat strip --\u003e\n  \u003cdiv style=\"display:table; width:100%; border-collapse:collapse; margin:20px 0;\"\u003e\n    \u003cdiv style=\"display:table-row;\"\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eCell Voltage\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e2V\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eCapacity\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e500Ah (10h) \/ 508Ah (20h)\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eMax Charge Current\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e100A\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eCycle Life\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e1200 @ 30% DoD\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eTerminal Type\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003eM10 bolts\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eWeight\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e27 kg\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Teal callout: informational --\u003e\n  \u003cdiv style=\"border-left:4px solid #008377CF; background:#e6f3f2; padding:12px 16px; margin:16px 0;\"\u003e\n    \u003cstrong style=\"color:#008377CF;\"\u003eBuilding a Battery Bank:\u003c\/strong\u003e As a single 2V cell, multiple units are wired in series to build higher-voltage banks — for example, \u003cstrong\u003e6 cells for a 12V bank, 12 cells for 24V, or 24 cells for 48V\u003c\/strong\u003e. This cell is also suitable as a like-for-like replacement in an existing 2V AGM bank.\n  \u003c\/div\u003e\n\n  \u003c!-- Amber callout: compatibility --\u003e\n  \u003cdiv style=\"border-left:4px solid #d98c00; background:#fdf3e3; padding:12px 16px; margin:16px 0;\"\u003e\n    \u003cstrong style=\"color:#d98c00;\"\u003eCharging Current Limit:\u003c\/strong\u003e Keep any charge controller or charger output at or below the \u003cstrong\u003e100A maximum charging current\u003c\/strong\u003e for this cell. When several cells are wired in series for a bank, the same current flows through the whole string, so the bank's charge current is still limited to 100A regardless of the number of cells.\n  \u003c\/div\u003e\n\n  \u003c!-- Red callout: safety --\u003e\n  \u003cdiv style=\"border-left:4px solid #cc0000; background:#fdecec; padding:12px 16px; margin:16px 0;\"\u003e\n    \u003cstrong style=\"color:#cc0000;\"\u003eOperating Temperature Range:\u003c\/strong\u003e Rated for use between \u003cstrong\u003e-10°C and +40°C\u003c\/strong\u003e. Operating outside this range, particularly on the high end, can accelerate degradation and shorten service life — ensure the battery compartment has adequate ventilation.\n  \u003c\/div\u003e\n\n  \u003c!-- Feature grid --\u003e\n  \u003cdiv style=\"display:table; width:100%; border-collapse:collapse; margin:20px 0;\"\u003e\n    \u003cdiv style=\"display:table-row;\"\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eMaintenance-Free AGM Design\u003c\/strong\u003e\u003cbr\u003e\n        With the electrolyte absorbed into a glass-fibre mat, there's no need for liquid or electrolyte top-ups over the cell's operating life.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eSealed \u0026amp; Terminal-Protected\u003c\/strong\u003e\u003cbr\u003e\n        Completely sealed and non-spillable, with a protective covering over the terminals — an important safety feature for banks built from multiple series-connected cells.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eLow Self-Discharge\u003c\/strong\u003e\u003cbr\u003e\n        Less prone to sulphation than flooded batteries, holding its charge for longer — useful where a bank sits idle between periods of use.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eVibration \u0026amp; Shock Resistant\u003c\/strong\u003e\u003cbr\u003e\n        Good resistance to shock and vibration, and the cell's position doesn't have to remain upright at all times, giving flexibility in bank layout and mounting.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eStrong Deep-Discharge Recovery\u003c\/strong\u003e\u003cbr\u003e\n        Recovers well from deep discharge cycles compared with flooded lead-acid alternatives, supporting repeated heavy use in off-grid storage systems.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eRobust M10 Terminals\u003c\/strong\u003e\u003cbr\u003e\n        Fitted with M10 bolt terminals suited to the heavier interconnecting cables typically used in high-capacity multi-cell bank wiring.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Spec table --\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0;\"\u003e\n    \u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#fff; font-weight:bold; padding:8px;\"\u003eElectrical Specifications\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e2V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eNominal Capacity\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e500Ah (10-hour rate) \/ 508Ah (20-hour rate)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMaximum Charging Current\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e100A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eCycle Lifetime (at 30% D.O.D.)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1200 cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePressure Control\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eSafety valve installed\u003c\/td\u003e\n\u003c\/tr\u003e\n\n    \u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#fff; font-weight:bold; padding:8px;\"\u003ePhysical \u0026amp; Build Specifications\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBattery Technology\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eAGM (Absorbed Glass Mat), sealed lead-acid\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eTerminal Type\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eM10 bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e-10°C to +40°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDimensions (L x W x H)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e242 x 174 x 365 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e27 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eIncluded in Box\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBattery, user manual\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eWarranty\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\n  \u003c!-- FAQ --\u003e\n  \u003cdiv style=\"margin-top:24px;\"\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eHow many of these cells do I need for a 12V, 24V or 48V bank?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eAs a 2V cell, you'll need \u003cstrong\u003e6 cells wired in series for a 12V bank\u003c\/strong\u003e, \u003cstrong\u003e12 for 24V\u003c\/strong\u003e, or \u003cstrong\u003e24 for 48V\u003c\/strong\u003e. All cells in a series string should be the same age and condition for balanced performance.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eCan I use this as a replacement for an existing battery bank?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eYes — this cell can be used as a \u003cstrong\u003ereplacement battery\u003c\/strong\u003e for systems already built from 500Ah 2V AGM cells. If replacing only some cells in an older bank, bear in mind mixing new and used cells in series can lead to imbalance over time.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eWhat's the maximum charging current for a full bank built from these cells?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eEach cell is rated to a \u003cstrong\u003emaximum charging current of 100A\u003c\/strong\u003e. Since cells in a series bank share the same current path, the whole bank's charge current should also stay within 100A, regardless of how many cells are connected in series.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eDoes this battery need to be kept upright?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eNo — the AGM design means the cell's \u003cstrong\u003eposition doesn't have to be upright at all times\u003c\/strong\u003e, giving more flexibility when arranging cells in a bank or fitting them into a battery compartment.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eWhat terminal hardware does this battery use?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eThis cell is fitted with \u003cstrong\u003eM10 bolt terminals\u003c\/strong\u003e, suited to the heavier-gauge interconnecting cables typically used when wiring multiple high-capacity cells into a bank.\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Photonic Universe","offers":[{"title":"Default Title","offer_id":65349171937629,"sku":"AGM500AH-2V","price":330.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/500Ah2VdeepcycleAGMbattery.jpg?v=1784829312"},{"product_id":"200ah-12v-gel-deep-cycle-battery-leisure-battery-for-motorhomes-caravans-boats","title":"200Ah 12V Gel Deep Cycle Battery - Leisure Battery for Motorhomes, Caravans \u0026 Boats","description":"\u003c!-- SEO Product Name: Photonic Universe 200Ah 12V Gel Deep Cycle Battery - Leisure Battery for Motorhomes, Caravans \u0026 Boats --\u003e\n\u003cdiv style=\"font-size:16px; max-width:900px; margin:0 auto; font-family:Arial, Helvetica, sans-serif; color:#222; line-height:1.55;\"\u003e\n\n  \u003cp\u003eThe Photonic Universe 200Ah 12V Gel Battery is a \u003cstrong\u003eValve Regulated Lead Acid (VRLA) deep cycle battery\u003c\/strong\u003e using a gel-type electrolyte, giving \u003cstrong\u003enon-spillable, completely sealed, maintenance-free\u003c\/strong\u003e operation. With double the capacity of the 100Ah version, it suits larger leisure power demands in motorhomes, caravans, and boats, as well as off-grid, backup, and combined solar\/wind energy storage.\u003c\/p\u003e\n\n  \u003c!-- Six-tile stat strip --\u003e\n  \u003cdiv style=\"display:table; width:100%; border-collapse:collapse; margin:20px 0;\"\u003e\n    \u003cdiv style=\"display:table-row;\"\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eNominal Voltage\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e12V\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eCapacity\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e200Ah (10h) \/ 205Ah (20h)\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eMax Charge Current\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e40A\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eSelf-Discharge\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e\u0026lt;1% per month\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eOperating Range\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e-10°C to +50°C\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eWeight\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e61.5 kg\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Teal callout: informational --\u003e\n  \u003cdiv style=\"border-left:4px solid #008377CF; background:#e6f3f2; padding:12px 16px; margin:16px 0;\"\u003e\n    \u003cstrong style=\"color:#008377CF;\"\u003eWhat Makes Gel Different from AGM:\u003c\/strong\u003e Gel batteries use a thickened gel electrolyte rather than a glass-fibre mat, giving a \u003cstrong\u003ewider working temperature range\u003c\/strong\u003e (performing well down to -10°C) and a \u003cstrong\u003elower self-discharge rate\u003c\/strong\u003e than typical AGM batteries.\n  \u003c\/div\u003e\n\n  \u003c!-- Amber callout: charging\/weight --\u003e\n  \u003cdiv style=\"border-left:4px solid #d98c00; background:#fdf3e3; padding:12px 16px; margin:16px 0;\"\u003e\n    \u003cstrong style=\"color:#d98c00;\"\u003eCheck Charging Current and Handling Weight:\u003c\/strong\u003e This battery's \u003cstrong\u003emaximum charging current is 40A\u003c\/strong\u003e — confirm your charge controller or charger stays within this limit and uses a Gel-compatible charge profile. At \u003cstrong\u003e61.5kg\u003c\/strong\u003e, plan for adequate support and two-person handling when installing or removing this battery.\n  \u003c\/div\u003e\n\n  \u003c!-- Feature grid --\u003e\n  \u003cdiv style=\"display:table; width:100%; border-collapse:collapse; margin:20px 0;\"\u003e\n    \u003cdiv style=\"display:table-row;\"\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eSealed Gel Construction\u003c\/strong\u003e\u003cbr\u003e\n        Completely sealed and maintenance-free, with no electrolyte top-ups required, and reduced internal corrosion and degradation compared with a standard wet-cell battery.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eWide Working Temperature Range\u003c\/strong\u003e\u003cbr\u003e\n        Performs well in cold conditions down to \u003cstrong\u003e-10°C\u003c\/strong\u003e, suiting boats and vehicles used through UK winters where temperatures regularly drop.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eVery Low Self-Discharge\u003c\/strong\u003e\u003cbr\u003e\n        At under 1% per month, this battery retains its charge exceptionally well during storage periods between trips or seasonal use.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eHigher Capacity for Bigger Loads\u003c\/strong\u003e\u003cbr\u003e\n        At 200Ah, this battery supports higher daily energy demands than the 100Ah version, suiting larger leisure setups with more onboard appliances.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eStrong Deep-Discharge Recovery\u003c\/strong\u003e\u003cbr\u003e\n        Recovers well after being deeply discharged, suiting leisure use where the battery is run down overnight and recharged the next day.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eLong Service Life\u003c\/strong\u003e\u003cbr\u003e\n        Typically lasts more than 5 years, and up to 10 years with good care, backed by resistance to shock and vibration for mobile installations.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Spec table --\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0;\"\u003e\n    \u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#fff; font-weight:bold; padding:8px;\"\u003eElectrical Specifications\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e12V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eNominal Capacity\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e200Ah (10-hour rate) \/ 205Ah (20-hour rate)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMaximum Charging Current\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e40A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eSelf-Discharge Rate\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u0026lt;1% per month\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eCycle Lifetime (at 30% D.O.D.)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1200–1300 cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePressure Control\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eSafety valve installed\u003c\/td\u003e\n\u003c\/tr\u003e\n\n    \u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#fff; font-weight:bold; padding:8px;\"\u003ePhysical \u0026amp; Build Specifications\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBattery Technology\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eGel (VRLA), sealed lead-acid\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eTerminal Type\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eF24 (bolts and washers included)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e-10°C to +50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDimensions (L x W x H)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e523 x 239 x 243 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e61.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eTypical Service Life\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMore than 5 years typical, up to 10 years with good care\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eIncluded in Box\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBattery, user manual, terminal bolts and washers\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eWarranty\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\n  \u003c!-- FAQ --\u003e\n  \u003cdiv style=\"margin-top:24px;\"\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eWhat's the difference between this and the 100Ah Gel battery?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eThis 200Ah battery offers roughly double the capacity of the 100Ah version, supporting a \u003cstrong\u003ehigher maximum charging current of 40A\u003c\/strong\u003e (versus 20A), but it's also significantly heavier at \u003cstrong\u003e61.5kg\u003c\/strong\u003e compared with 30.3kg, and uses larger F24 terminals.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eIs this battery suitable for a solar charging setup?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eYes — this battery has excellent solar charge acceptance. Make sure your solar charge controller's output current doesn't exceed the battery's \u003cstrong\u003e40A maximum charging current\u003c\/strong\u003e, and that the controller supports a Gel-specific charge profile if available.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eDoes this battery cope well with cold weather?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eYes — Gel batteries have a wider working temperature range than typical AGM batteries and perform well in cold conditions down to \u003cstrong\u003e-10°C\u003c\/strong\u003e, suiting winter use in a boat or motorhome.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eHow heavy is this battery, and how should I handle it?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eThis battery weighs \u003cstrong\u003e61.5kg\u003c\/strong\u003e, so plan for a well-supported, ventilated mounting location and consider two-person lifting when installing or removing it, particularly in confined boat or vehicle battery compartments.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eHow long will this battery last?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eTypical service life is \u003cstrong\u003emore than 5 years\u003c\/strong\u003e, and with good care it can last up to \u003cstrong\u003e10 years\u003c\/strong\u003e. Cycle life is rated at 1200–1300 cycles at 30% depth of discharge.\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Photonic Universe","offers":[{"title":"Default Title","offer_id":65349225447773,"sku":"GEL200AH","price":435.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/200Ah12VGeldeepcyclebatteryformotorhomes_caravans_boatsandoff-gridpowersystems.jpg?v=1784830076"},{"product_id":"100ah-12v-gel-deep-cycle-battery-leisure-battery-for-motorhomes-caravans-boats","title":"100Ah 12V Gel Deep Cycle Battery - Leisure Battery for Motorhomes, Caravans \u0026 Boats","description":"\u003c!-- SEO Product Name: Photonic Universe 100Ah 12V Gel Deep Cycle Battery - Leisure Battery for Motorhomes, Caravans \u0026 Boats --\u003e\n\u003cdiv style=\"font-size:16px; max-width:900px; margin:0 auto; font-family:Arial, Helvetica, sans-serif; color:#222; line-height:1.55;\"\u003e\n\n  \u003cp\u003eThe Photonic Universe 100Ah 12V Gel Battery is a \u003cstrong\u003eValve Regulated Lead Acid (VRLA) deep cycle battery\u003c\/strong\u003e filled with a special gel-type electrolyte. It's \u003cstrong\u003enon-spillable, completely sealed, and maintenance-free\u003c\/strong\u003e, making it a safe and low-fuss leisure battery for motorhomes, caravans, campervans, and boats, with excellent solar charge acceptance for solar and wind charging setups.\u003c\/p\u003e\n\n  \u003c!-- Six-tile stat strip --\u003e\n  \u003cdiv style=\"display:table; width:100%; border-collapse:collapse; margin:20px 0;\"\u003e\n    \u003cdiv style=\"display:table-row;\"\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eNominal Voltage\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e12V\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eCapacity\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e100Ah (10h) \/ 108Ah (20h)\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eMax Charge Current\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e20A\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eSelf-Discharge\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e\u0026lt;1% per month\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eOperating Range\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e-10°C to +50°C\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:16.6%; background:#008377CF; color:#fff; text-align:center; padding:12px 6px; font-weight:bold; font-size:14px;\"\u003eWeight\u003cbr\u003e\u003cspan style=\"font-weight:normal; font-size:13px;\"\u003e30.3 kg\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Teal callout: informational --\u003e\n  \u003cdiv style=\"border-left:4px solid #008377CF; background:#e6f3f2; padding:12px 16px; margin:16px 0;\"\u003e\n    \u003cstrong style=\"color:#008377CF;\"\u003eWhat Makes Gel Different from AGM:\u003c\/strong\u003e Gel batteries use a thickened gel electrolyte rather than a glass-fibre mat. This gives them an even \u003cstrong\u003ewider working temperature range\u003c\/strong\u003e (functioning well down to -10°C) and a \u003cstrong\u003elower self-discharge rate\u003c\/strong\u003e than typical AGM batteries, at the tradeoff of a lower maximum charge current.\n  \u003c\/div\u003e\n\n  \u003c!-- Amber callout: charging --\u003e\n  \u003cdiv style=\"border-left:4px solid #d98c00; background:#fdf3e3; padding:12px 16px; margin:16px 0;\"\u003e\n    \u003cstrong style=\"color:#d98c00;\"\u003eCharging Current Limit:\u003c\/strong\u003e This battery's \u003cstrong\u003emaximum charging current is 20A\u003c\/strong\u003e — noticeably lower than an equivalent AGM battery. Check your solar charge controller or mains charger output doesn't exceed this limit, and confirm it has a gel-compatible charge profile.\n  \u003c\/div\u003e\n\n  \u003c!-- Feature grid --\u003e\n  \u003cdiv style=\"display:table; width:100%; border-collapse:collapse; margin:20px 0;\"\u003e\n    \u003cdiv style=\"display:table-row;\"\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eSealed Gel Construction\u003c\/strong\u003e\u003cbr\u003e\n        Completely sealed and maintenance-free, with no electrolyte top-ups required, and less internal corrosion and degradation than a standard wet-cell battery.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eWide Working Temperature Range\u003c\/strong\u003e\u003cbr\u003e\n        Performs well in cold conditions down to \u003cstrong\u003e-10°C\u003c\/strong\u003e, making it a strong option for boats and vehicles used through UK winters.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eVery Low Self-Discharge\u003c\/strong\u003e\u003cbr\u003e\n        At under 1% per month, this battery holds its charge exceptionally well during storage, ahead of typical AGM self-discharge rates.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eStrong Deep-Discharge Recovery\u003c\/strong\u003e\u003cbr\u003e\n        Recovers well after being deeply discharged, suiting leisure use where the battery is run down overnight and recharged the following day.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eFlexible Mounting Position\u003c\/strong\u003e\u003cbr\u003e\n        Doesn't need to stay strictly upright, and offers good resistance to shock and vibration — useful in the confined battery lockers typical of caravans and boats.\n      \u003c\/div\u003e\n      \u003cdiv style=\"display:table-cell; width:33.3%; padding:10px; border:1px solid #008377CF; vertical-align:top;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eLong Service Life\u003c\/strong\u003e\u003cbr\u003e\n        Typically lasts more than 5 years, and up to 10 years with good care — longer than the typical service life of an equivalent AGM battery.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Spec table --\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0;\"\u003e\n    \u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#fff; font-weight:bold; padding:8px;\"\u003eElectrical Specifications\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e12V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eNominal Capacity\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e100Ah (10-hour rate) \/ 108Ah (20-hour rate)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMaximum Charging Current\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e20A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eSelf-Discharge Rate\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u0026lt;1% per month\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eCycle Lifetime (at 30% D.O.D.)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1200–1300 cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePressure Control\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eSafety valve installed\u003c\/td\u003e\n\u003c\/tr\u003e\n\n    \u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#fff; font-weight:bold; padding:8px;\"\u003ePhysical \u0026amp; Build Specifications\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBattery Technology\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eGel (VRLA), sealed lead-acid\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eTerminal Type\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eF13 (bolts and washers included)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e-10°C to +50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDimensions (L x W x H)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e331 x 173 x 217 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e30.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eTypical Service Life\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMore than 5 years typical, up to 10 years with good care\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eIncluded in Box\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBattery, user manual, terminal bolts and washers\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eWarranty\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\n  \u003c!-- FAQ --\u003e\n  \u003cdiv style=\"margin-top:24px;\"\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eWhat's the difference between a Gel battery and an AGM battery?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eBoth are sealed, maintenance-free lead-acid designs, but Gel batteries use a thickened electrolyte gel rather than a glass-fibre mat. This gives Gel batteries a \u003cstrong\u003ewider working temperature range\u003c\/strong\u003e and \u003cstrong\u003elower self-discharge rate\u003c\/strong\u003e, though typically at a lower maximum charging current than an equivalent AGM battery.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eIs this battery suitable for a solar charging setup?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eYes — this battery has excellent solar charge acceptance. Just make sure your solar charge controller's output current doesn't exceed the battery's \u003cstrong\u003e20A maximum charging current\u003c\/strong\u003e, and that the controller has a Gel-specific charge profile if available.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eDoes this battery cope well with cold weather?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eYes — Gel batteries have a \u003cstrong\u003ewider working temperature range\u003c\/strong\u003e than typical AGM batteries and perform well in cold conditions down to \u003cstrong\u003e-10°C\u003c\/strong\u003e, making this a good option for winter use in a boat or motorhome.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eDoes this battery need to be kept upright?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eNo — the Gel design means the battery's \u003cstrong\u003eposition doesn't have to be upright at all times\u003c\/strong\u003e, giving more flexibility when fitting it into a tight battery locker.\u003c\/div\u003e\n    \u003c\/details\u003e\n    \u003cdetails style=\"margin-bottom:8px; border:1px solid #008377CF; border-radius:4px;\"\u003e\n      \u003csummary style=\"background:#008377CF; color:#fff; padding:10px 14px; font-weight:bold; cursor:pointer;\"\u003eHow long will this battery last?\u003c\/summary\u003e\n      \u003cdiv style=\"padding:12px 14px;\"\u003eTypical service life is \u003cstrong\u003emore than 5 years\u003c\/strong\u003e, and with good care — avoiding deep over-discharge and staying within the rated temperature range — it can last up to \u003cstrong\u003e10 years\u003c\/strong\u003e. Cycle life is rated at 1200–1300 cycles at 30% depth of discharge.\u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Photonic Universe","offers":[{"title":"Default Title","offer_id":65349244092765,"sku":"GEL100AH","price":217.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/100Ah12VGelDeepCycleBattery-LeisureBattery.jpg?v=1784830218"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/collections\/Packaging_damaged_1_flap_broken_likely_used_for_a_few_days._Fully_functioning..jpg?v=1784820266","url":"https:\/\/qualityheating.co.uk\/collections\/off-grid-batteries.oembed","provider":"AIZO Quality Heating","version":"1.0","type":"link"}