The Duracell Energy Dura16 LV is a 16 kWh wall-mounted LiFePO4 home battery system, designed and engineered in the UK by Puredrive Energy for residential solar storage. Its 51.2V, 314Ah lithium iron phosphate chemistry delivers 14.4 kWh of usable energy, a maximum charge/discharge rate of 130A (6.6 kW), and a rated cycle life of 8,000 full cycles — enough to deliver approximately 95,000 kWh of energy over its lifetime. At a single-unit scale of 16 kWh, it is one of the largest residential low-voltage batteries available in the UK, covering a full average household’s daily consumption in a single module. Key installation advantages: plug-and-play with all cables included, IP65 for indoor or outdoor siting, fanless passive cooling, module-level auto-balancing, and scalability to up to 12 units in parallel for up to 192 kWh of storage on a single system. CAN/RS485 communications. 10-year warranty. Wall-mount installation. Duracell Energy App for monitoring and tariff integration.
16 kWh
Total capacity
14.4 kWh
Usable energy
8,000
Cycle life
130A
Max charge/discharge
6.6 kW
Max power
10-year
Warranty
⚠ MCS-accredited installer required: Battery storage systems must be installed by a suitably qualified electrician in accordance with BS 7671 18th Edition wiring regulations. For SEG (Smart Export Guarantee) eligibility and compliance with G98/G99, the installation should be carried out or overseen by an MCS-accredited installer. The 122 kg unit weight requires at least two people and appropriate lifting equipment.
ℹ Designed, engineered and warranty-supported in the UK: The Dura16 LV is designed and engineered in the UK by Puredrive Energy Limited in Toddington, Gloucestershire, under licence from Duracell. Warranty support is handled directly by Puredrive Energy in the UK — not through an overseas manufacturer.
What 8,000 cycles means for a UK household
A typical UK home completes one full charge/discharge cycle per day when solar-charging during the day and drawing down in the evening. At that rate, 8,000 cycles = approximately 21 years of daily cycling. Even at 1.5 cycles per day (combining solar and overnight cheap-tariff charging), the Dura16 LV reaches its rated cycle count after roughly 14 years — well beyond the 10-year warranty period. Over its lifetime, it is rated to deliver 95,000 kWh of energy, which at 24p/kWh is approximately £22,800 of potential bill savings from stored energy alone.
Key Features
16 kWh LiFePO4 — The Safest Lithium Chemistry at Maximum Residential Capacity
The Dura16 LV uses lithium iron phosphate (LiFePO4), widely regarded as the safest lithium battery chemistry. LiFePO4 does not exhibit thermal runaway under the same conditions as NMC (nickel-manganese-cobalt) or NCA chemistries: it is thermally and chemically stable and does not release oxygen during failure, significantly reducing fire risk compared to other lithium types. At 16 kWh gross / 14.4 kWh usable, a single Dura16 LV covers the average UK household’s entire daily electricity consumption (approximately 8 – 11 kWh for a typical 3-bed property) with substantial headroom for overnight EV charging, heat pump operation or additional high-consumption loads. Three smaller 5 kWh batteries were previously required to achieve equivalent storage — the Dura16 consolidates that into a single wall-mount unit.
The Dura16 LV supports a maximum charge and discharge current of 130A, delivering a maximum power of 6.6 kW in both directions. This represents a 1C rate — meaning the battery can be fully charged or discharged in approximately one hour. For practical use, this translates to: absorbing up to 6.6 kW of peak solar output during summer midday generation spikes, or supplying 6.6 kW of continuous power during a grid outage to run high-demand loads simultaneously (e.g. an electric hob at 3 kW plus a heat pump at 2 kW plus background lighting and appliances). At 51.2 V nominal, 130A gives 6.656 kW, consistent with the rated 6.6 kW maximum.
130A max current6.6 kW max power1C charge and discharge
8,000 Cycles — Exceptional Cycle Life for LFP Chemistry
The Dura16 LV is rated for 8,000 full charge/discharge cycles — which Duracell Energy state equates to 95,000 kWh of total energy throughput over the battery’s life. To put this in context: a Pylontech US5000 is rated for 6,000 cycles, a typical NMC home battery for 3,000 – 4,000 cycles. LFP chemistry inherently supports more cycles than NMC because the iron-phosphate cathode structure degrades less per cycle. The 8,000-cycle rating at the Dura16’s 14.4 kWh usable capacity makes it one of the highest lifetime-energy batteries available in the UK residential market.
8,000 cycles95,000 kWh lifetime energyExceeds NMC cycle life
Plug-and-Play — All Cables Included, Master BMS Auto-Select
The Dura16 LV ships with all cables required for installation. The intelligent BMS includes Master BMS auto-select: when multiple Dura16 units are connected in parallel, the system automatically designates which unit acts as the master BMS without manual configuration. Module-level auto-balancing ensures each unit maintains equal state of charge, regardless of age or minor capacity differences between modules. CAN and RS485 communications ports enable integration with compatible hybrid inverters for full BMS-inverter communication.
All cables includedMaster BMS auto-selectModule-level auto-balancing
IP65 — Indoor or Outdoor, Year-Round UK Siting
An IP65 enclosure means the Dura16 LV is fully dust-tight and protected against water jets from any direction. This enables outdoor wall-mounting on a sheltered external wall, in a garage, outbuilding or external plant area, removing the need to dedicate indoor space to the battery. Operating temperature range for charging is −10°C to +60°C; for discharging, −20°C to +60°C. The wider discharge range means the battery can supply power in frost conditions that would prevent charging. For UK outdoor installation, a north-facing or shaded location is preferred to avoid sustained high temperatures in summer.
IP65Indoor or outdoorCharge from −10°CDischarge from −20°C
Fanless Passive Cooling — Silent Operation
The Dura16 LV uses natural convection cooling with no fan. This means zero operational noise, no fan failure risk, and no dust ingestion through cooling vents. Fanless thermal management relies on the enclosure and heat dissipation through the casing. This is particularly relevant for installations near living areas, bedrooms, home offices or quiet utility rooms where fan noise from a battery would be intrusive during overnight cycling.
Fanless — no noiseNo moving partsNo dust ingestion
Scalable to 12 Units in Parallel — Up to 192 kWh on One System
Up to 12 Dura16 LV units can be connected in parallel, creating a storage system of up to 192 kWh gross (172.8 kWh usable). This scalability makes the Dura16 LV suitable for: large homes with heat pumps, multiple EV chargers and high consumption; small commercial or agricultural premises; and grid services participation (VPP, FFR, DC, firm frequency response) where larger storage capacity increases potential revenue. Additional units can be added at any time after initial installation — the Master BMS auto-select handles the expansion automatically. The Duracell Energy website also references scaling to 32 units per inverter when multiple inverters are paralleled, for up to 512 kWh.
Up to 12 units in parallelUp to 192 kWhExpandable at any time
Duracell Energy App — Tariff Intelligence and Whole-Home Energy Management
The Duracell Energy App (iOS and Android) connects to the Dura16 LV for real-time monitoring of battery state of charge, solar generation, grid import/export and household consumption. Tariff Intelligence automatically programmes the battery to charge during low-cost periods (Economy 7, Octopus Go, Octopus Agile, and other time-of-use tariffs) and discharge during peak-rate periods, maximising bill savings without manual schedule management. The app also integrates with the Dura-i hybrid inverter for unified control of the complete solar-plus-storage system, including grid services participation when applicable.
Duracell Energy AppTariff Intelligence — auto ToU optimisationGrid services ready
Technical Specifications
Energy and Capacity
Battery module energy
16 kWh
Usable energy
14.4 kWh
Nominal voltage
51.2 V
Capacity
314 Ah
Operating voltage range (single phase)
43.2 V – 58.4 V
Power
Max charging/discharging current
130 A
Battery max. power
6.6 kW
Performance and Lifetime
Cycle life
8,000 cycles
Lifetime energy throughput
~95,000 kWh
Depth of discharge
90 % (14.4 kWh usable from 16 kWh gross)
Physical
Model number
PD-16KWH-50V-1G
Dimensions (W × H × D)
520 × 860 × 236 mm (±2.0 mm)
Product weight
122 kg
Packaged weight
135 kg
Installation
Wall-mount
Environmental
Enclosure protection
IP65
Environment
Indoor or outdoor
Operating temperature (charge)
−10°C to +60°C
Operating temperature (discharge)
−20°C to +60°C
Relative humidity
5 – 95 % RH (non-condensing)
Max operating altitude
3,000 m
Technology and Communications
Cell technology
LiFePO4 (lithium iron phosphate)
BMS
Intelligent BMS with Master auto-select
Module balancing
Module-level auto-balancing
Communication ports
CAN / RS485
Display
LED indicator
Cooling
Natural convection (fanless)
Scalability
Max parallel units
12 (up to 192 kWh gross)
Warranty and Manufacturer
Warranty
10 years
Designed and engineered
UK (Puredrive Energy Limited, Gloucestershire)
Warranty support
Puredrive Energy Limited, UK
Frequently Asked Questions
What inverters are compatible with the Dura16 LV?
The Dura16 LV communicates via CAN and RS485, the two standard protocols used by the majority of hybrid inverters compatible with low-voltage (48V-class) batteries. It is natively compatible with the Duracell Energy Dura-i hybrid inverter (available in 3.6 kW and 6 kW single-phase). Compatibility with third-party inverters depends on whether the inverter supports a BMS protocol that the Dura16’s BMS can communicate with. The underlying Puredrive BMS has been documented as compatible with Solis hybrid inverters in some configurations. Always confirm inverter compatibility with your installer or the Duracell Energy technical team before specifying the system.
How does the 10-year warranty work?
The 10-year warranty is backed by Puredrive Energy Limited, the UK manufacturer of the Dura16 LV, in Toddington, Gloucestershire. Duracell (Duracell Batteries BV / Duracell U.S. Operations, Inc.) is a brand licence and is not involved in the manufacture or warranty support. The warranty covers faulty materials and manufacture of the battery module. To validate the warranty, ensure the installation is carried out correctly and the product is registered through the appropriate channel. Contact Puredrive Energy or Duracell Energy for warranty registration requirements.
Can the Dura16 LV power my home during a grid outage?
Yes, provided the inverter it is connected to supports backup/off-grid operation. The Duracell Energy Dura-i hybrid inverter supports backup power functionality. With 14.4 kWh of usable energy and a maximum discharge rate of 6.6 kW, the Dura16 LV can supply a substantial continuous load. At average household consumption of 0.5 kW, a full Dura16 LV would power the home for approximately 28 hours. For backup operation, the system must be correctly configured with an appropriate isolation arrangement by a qualified installer.
How many Dura16 LV units can I add over time?
Up to 12 Dura16 LV units in parallel, giving a maximum of 192 kWh gross (172.8 kWh usable) per system. The Master BMS auto-select feature means new units can be added at any time without reconfiguring existing units. Additional units do not need to be the same age as the original installation. Module-level auto-balancing compensates for any minor capacity differences between older and newer units in the stack.
Is the Dura16 LV suitable for outside installation in the UK?
Yes. IP65 protection makes it suitable for outdoor installation on a sheltered external wall. The discharge operating temperature extends to −20°C, which is well below any UK ambient temperature the battery would encounter outdoors. Charging is rated down to −10°C; at temperatures below this, the BMS will prevent charging to protect the cells. For outdoor installations, avoid direct south-facing exposure in summer to prevent the enclosure reaching sustained high temperatures that could reduce cell longevity. A north- or east-facing sheltered location is preferred for year-round outdoor siting.
What is the difference between LiFePO4 and NMC batteries?
LiFePO4 (lithium iron phosphate) and NMC (nickel-manganese-cobalt) are the two main lithium chemistries used in home batteries. LiFePO4 advantages: safer (no thermal runaway under normal failure modes), longer cycle life (8,000 cycles vs typically 3,000 – 4,000 for NMC), more stable at high temperatures. NMC advantages: higher energy density for a given weight and volume (so NMC batteries are lighter and smaller for the same kWh). For home battery storage, where safety and cycle longevity are more important than physical size, LiFePO4 is the preferred chemistry and is now used by the majority of purpose-built home battery products.
Related Products
Dyness DL5.0C Pro 5.12 kWh LFP
Alternative 48V LFP battery module
Solis RHI-5G Hybrid Inverter (3 kW – 6 kW)
Compatible low-voltage hybrid inverter
Aiko 490W Neostar 3P+ ABC Solar Panel
High-efficiency panel for solar-plus-storage systems
SolaX Pocket WiFi+LAN V3.0
Monitoring dongle for compatible inverters
BTU & WATT Calculator
Room Dimensions
Room Type
Living Room
Bedroom
Kitchen
Bathroom
Conservatory
Hallway
Glazing Type
Single Glazed
Double Glazed
Triple Glazed
External Walls
0 Wall
1 Wall
2 Walls
3 Walls
4 Walls
Insulation Level
Poor
Average
Good (New Build)
Required Heating
0
Watts
0
BTUs
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