Duracell Energy Dura16 LV — 16 kWh of Wall-Mounted Solar Storage in a Single Unit
The Duracell Energy Dura16 LV is the largest single-module low-voltage home battery currently available in the UK market. At 16 kWh gross capacity (14.4 kWh usable), it stores an entire average household's daily electricity consumption in one wall-mounted unit — eliminating the need to stack multiple smaller battery modules just to achieve meaningful storage.
Designed and engineered in the UK by Puredrive Energy at their facility in Toddington, Gloucestershire, the Dura16 uses lithium iron phosphate (LiFePO4) chemistry with a rated cycle life of 8,000 full cycles. Over its lifetime, that translates to approximately 95,000 kWh of total energy throughput — more than three times what many competing batteries deliver. At current electricity rates of around 24p per kWh, that equates to roughly £22,800 of potential bill savings from stored energy alone.
The Dura16 pairs natively with the Duracell Energy Dura-i hybrid inverter and DuraCharger EV charger to form a complete home energy ecosystem — solar generation, battery storage, EV charging and intelligent tariff management — all controlled from a single app. But it also communicates via standard CAN and RS485 protocols, making it compatible with third-party hybrid inverters that support low-voltage (48V-class) battery communication.
Why the Dura16 Stands Out
Scalable to 192 kWh — Built for Homes That Use More
The Dura16 is designed for UK households with above-average energy consumption — homes running heat pumps, multiple EV chargers, air conditioning or home offices. But its modular architecture means it scales well beyond a single unit. Up to 12 Dura16 LV batteries can be connected in parallel, creating a storage system of up to 192 kWh gross (172.8 kWh usable). Additional units can be added at any time after initial installation; the Master BMS auto-select handles the expansion automatically with no reconfiguration of existing units.
When multiple Dura-i inverters are paralleled (up to 9 per system), Duracell Energy reference scaling to 32 battery units per inverter — enabling systems of up to 512 kWh for larger residential, small commercial or agricultural premises.
Tariff Intelligence — Automate Your Savings
The Duracell Energy App (iOS and Android) connects to the Dura16 for real-time monitoring of battery state of charge, solar generation, grid import/export and household consumption. The Tariff Intelligence feature 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.
Larger battery capacity also opens up additional income opportunities through grid services participation. Virtual Power Plant (VPP), Firm Frequency Response (FFR) and Dynamic Containment (DC) schemes pay homeowners to make stored energy available to the national grid during periods of high demand — and the more storage you have, the more you can earn.
Lifetime Value — The Numbers That Matter
The Dura16's LiFePO4 chemistry inherently supports more charge/discharge cycles than NMC (nickel manganese cobalt) chemistry found in many competing batteries. Where a typical NMC home battery is rated for 3,000–4,000 cycles, the Dura16 delivers 8,000 — and its iron-phosphate cathode structure degrades less per cycle, maintaining capacity retention over the long term.
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 equates to approximately 21 years of daily cycling. Even at 1.5 cycles per day (combining solar and overnight cheap-tariff charging), the Dura16 reaches its rated cycle count after roughly 14 years — well beyond the 10-year warranty period.
Backup Power — Keep Your Home Running During Outages
When paired with a Dura-i hybrid inverter that supports backup/off-grid operation, the Dura16 can power your home during a grid outage. The Dura-i switches to backup power in just 10 ms — fast enough to be imperceptible to computers, routers and sensitive electronics. With 14.4 kWh of usable energy and a maximum continuous discharge rate of 6.6 kW, a fully charged Dura16 would power a home at average consumption (approximately 0.5 kW) for around 28 hours.
How the Dura16 Compares
| Specification | Duracell Dura16 LV | Typical NMC 10 kWh | Pylontech US5000 (×3) |
|---|---|---|---|
| Total Capacity | 16 kWh | 10 kWh | 14.4 kWh (3 × 4.8 kWh) |
| Usable Capacity | 14.4 kWh | ~9 kWh | ~13 kWh |
| Chemistry | LiFePO4 | NMC | LiFePO4 |
| Rated Cycles | 8,000 | 3,000–4,000 | 6,000 |
| Lifetime Energy | 95,000 kWh | ~30,000 kWh | ~78,000 kWh |
| Max Discharge Power | 6.6 kW (130A) | ~5 kW | ~5.5 kW (combined) |
| Modules Required | 1 | 1 | 3 |
| IP Rating | IP65 | Varies (often IP55) | IP55 |
| Cooling | Fanless (passive) | Usually fan-cooled | Fanless |
| Warranty | 10 years | 10 years | 10 years |
Watch: The Dura16 in Action
Buy the Duracell Energy Dura16 LV
Duracell Energy
Dura16 LV 16 kWh Home Battery
16 kWh wall-mounted LiFePO4 battery with 14.4 kWh usable capacity, 6.6 kW max discharge, 8,000 cycle rating, IP65 outdoor protection and fanless passive cooling. Model PD-16KWH-50V-1G.
£3,700.00 Inc. VAT
Full Technical Specifications
| Parameter | Value |
|---|---|
| Model Number | PD-16KWH-50V-1G |
| Battery Module Energy | 16 kWh |
| Usable Energy | 14.4 kWh |
| Cell Technology | LiFePO4 (Lithium Iron Phosphate) |
| Nominal Voltage | 51.2V |
| Operating Voltage Range | 43.2V – 58.4V |
| Max Charging / Discharging Current | 130A |
| Battery Max Power | 6.6 kW |
| Rated Cycles | 8,000 |
| Lifetime Energy Throughput | ~95,000 kWh |
| Dimensions (W × H × D) | 520 × 860 × 236 mm |
| Weight | 122 kg (135 kg packaged) |
| Installation | Wall-mount |
| IP Rating | IP65 |
| Environment | Indoor / Outdoor |
| Operating Temperature (Charge) | -10°C to 60°C |
| Operating Temperature (Discharge) | -20°C to 60°C |
| Operating Humidity | 5–85% RH |
| Operating Altitude | ≤ 3,000 m |
| Cooling | Natural Convection (Fanless) |
| Display | LED Indicator |
| Communication | CAN / RS485 |
| Scalability | Up to 12 units in parallel (192 kWh) |
| Warranty | 10 years (Puredrive Energy Ltd, UK) |
Complete the Duracell Energy Ecosystem
The Dura16 pairs with the full Dura-i hybrid inverter range and DuraCharger EV charger — all managed through a single app.
Compatible Dura-i Hybrid Inverters
The Dura-i G3 single-phase hybrid inverter range is optimised for Duracell Energy batteries, charging and discharging them 20% faster than competing inverters. Available in four sizes — 3.6 kW, 4.6 kW, 5.0 kW and 6 kW — all models feature 97.3% peak efficiency, dual MPPT (70–540V), 10 kWp solar input, 10 ms emergency backup switchover, an integrated smart meter (no external energy meter required), IP65 protection and a 10-year warranty. Up to 9 Dura-i units can be paralleled for larger systems.
Duracell Energy
Dura-i G3 3.6 kW Hybrid Inverter
3.6 kW AC output with 4,000W / 75A battery throughput. Falls within the G98 notification threshold — no formal G99 application needed.
£990.00 Inc. VAT
Duracell Energy
Dura-i G3 4.6 kW Hybrid Inverter
4.6 kW AC output with 5,500W / 110A battery throughput. Suits larger arrays and bigger battery banks. G99 application required.
£1,050.00 Inc. VAT
Duracell Energy
Dura-i G3 6 kW Hybrid Inverter
The flagship model — 6 kW AC output with 6,600W / 135A battery throughput and 10,000 VA peak backup. Ideal for high-demand homes with the Dura16. G99 required.
£1,085.00 Inc. VAT
Duracell Energy
Dura-i G3 5.0 kW Hybrid Inverter
5.0 kW AC output — slots between the 4.6 kW and 6 kW models for homes that need a mid-range option. Same 97.3% efficiency, dual MPPT, 10 ms backup and IP65 rating. G99 required.
£995.00 Inc. VAT
DuraCharger — Complete the Solar + Battery + EV Loop
The Duracell Energy DuraCharger is a 7.4 kW single-phase tethered AC EV charger that does more than just charge your car. When paired with a Dura-i inverter and Dura16 battery, it operates as part of the integrated Duracell Energy ecosystem — the battery and EV charger are coordinated, not competing, for cheap off-peak energy. Four charging modes are available: Smart (cheapest tariff window), PureGreen (100% solar), GreenBoost (solar-first with grid top-up) and Override (guaranteed charge by a set time). Integrated PEN fault protection eliminates the need for an earth rod on TN-C-S supplies — the most common supply type in UK homes.
Duracell Energy
DuraCharger 7 kW Tethered AC EV Charger
7.4 kW / 32A single-phase EV charger with 4 m Type 2 tethered cable, IP55 weatherproof rating, integrated PEN fault protection and four smart charging modes. Available in black or white. Part of the Duracell Energy Home Ecosystem.
From £570.00 Inc. VAT
Dura-i Inverter Comparison
| Specification | Dura-i 3.6 kW | Dura-i 4.6 kW | Dura-i 5.0 kW | Dura-i 6 kW |
|---|---|---|---|---|
| AC Output | 3.6 kW | 4.6 kW | 5.0 kW | 6.0 kW |
| Battery Throughput | 4,000W / 75A | 5,500W / 110A | See product page | 6,600W / 135A |
| Peak Backup Output | — | — | — | 10,000 VA |
| Solar Input (Max PV) | 10 kWp | 10 kWp | 10 kWp | 10 kWp |
| MPPT Inputs | 2 (70–540V) | 2 (70–540V) | 2 (70–540V) | 2 (70–540V) |
| Peak Efficiency | 97.3% | 97.3% | 97.3% | 97.3% |
| Backup Switchover | 10 ms | 10 ms | 10 ms | 10 ms |
| Grid Connection | G98 (notification) | G99 (application) | G99 (application) | G99 (application) |
| IP Rating | IP65 | IP65 | IP65 | IP65 |
| Warranty | 10 years | 10 years | 10 years | 10 years |
| Price (Inc. VAT) | £990.00 | £1,050.00 | £995.00 | £1,085.00 |
Frequently Asked Questions
Can the Dura16 power my home during a power cut?
Is the Dura16 compatible with third-party inverters?
How long will 8,000 cycles actually last?
Who actually makes the Dura16?
Can I add more Dura16 units later?
Do I need solar panels to use the Dura16?
Ready to Power Your Home with the Dura16?
16 kWh of LiFePO4 storage in a single wall-mounted unit — store a full day's electricity, cut your bills towards zero, and keep your home running during outages.
Buy Dura16 — £3,700 Browse All Duracell Energy