The Duracell Energy Dura5 is a 5.12 kWh LiFePO4 solar battery storage module designed for UK homes and small businesses that want to maximise self-consumption from solar panels, reduce grid dependence and take full advantage of time-of-use tariffs. Built around lithium iron phosphate (LiFePO4) cell chemistry — the safest and most durable lithium battery technology available — the Dura5 delivers an industry-leading 8,000 cycle lifespan and a 1C / 1C charge and discharge rate, meaning the full 5.12 kWh can be charged or discharged in a single hour. Its IP65 rating makes it suitable for both indoor and outdoor installation, and its modular architecture allows expansion up to 32 units (163.84 kWh total) simply by adding further Dura5 modules over time. All cables are included for plug-and-play connection to a compatible hybrid inverter.
5.12 kWh
Total Energy
4.6 kWh
Usable Energy
8,000
Cycle Life
1C / 1C
Charge Rate
10 yr
Warranty
32 units
Max Parallel
Works as a standalone system or integrated with solar:
▶ Solar self-consumption — store daytime PV generation for evening use
▶ Grid shifting — charge on off-peak tariffs, discharge at peak
▶ EV integration — pair with a DuraCharger for smart EV charging
▶ Renewable storage — compatible with wind and hydro sources
▶ Standalone (no solar) — purely for tariff arbitrage and bill reduction
▶ Dynamic tariff optimisation — up to 90% bill savings with full integration
Key Features & Technology
LiFePO4 Chemistry — Safest Lithium Technology
Lithium iron phosphate (LiFePO4) is the most thermally and chemically stable lithium battery chemistry available. Unlike NMC or NCA chemistries, LiFePO4 cells do not release oxygen when overheated, are not susceptible to thermal runaway and do not require active cooling. This gives the Dura5 an inherent safety advantage — particularly important for home installations in garages, utility rooms and outdoor enclosures where thermal events must be avoided.
8,000 Cycle Lifespan — Market-Leading Durability
The Dura5 is rated for 8,000 full charge/discharge cycles — significantly more than the 4,000–6,000 cycles typical of competing LiFePO4 products at this price point. Cycling once per day, 8,000 cycles represents over 21 years of daily use, far outlasting the 10-year product warranty and providing exceptional long-term return on investment.
1C / 1C Charge and Discharge — Twice as Fast as Leading Competitors
A 1C rating means the full 5.12 kWh capacity can be charged or discharged in one hour — 100A continuous. This is twice the charge rate of many competing solar batteries, enabling the Dura5 to capture rapid solar generation peaks, respond instantly to grid tariff windows and deliver high power during demand spikes without throttling output.
IP65 Rated — Fully Weatherproof for Outdoor Installation
IP65 ingress protection means the Dura5 is fully protected against dust ingress and low-pressure water jets from any direction. This makes it equally suitable for outdoor installation (on an exterior wall, in a covered porch, or in an outbuilding) as for indoor garage or utility room mounting. No additional weatherproof enclosure is required.
Operating from -10°C Without Internal Heaters
The Dura5 operates at its full 1C charge and discharge rate from -10°C to +55°C without relying on internal heating elements. Many competing batteries throttle charge rates in cold weather to protect lithium cells — the Dura5 maintains full performance in UK winter conditions, including outdoor installations exposed to overnight temperatures well below zero.
Modular Architecture — Stack or Wall-Mount, Expand at Any Time
Each Dura5 module can be floor-stacked (up to 16 units per stack, two stacks in parallel) or wall-mounted to suit available space. Up to 32 modules can be connected in parallel for a maximum system capacity of 163.84 kWh. Additional modules can be added to an existing installation at any time — future-proofing your investment as energy needs grow, EV ownership increases or tariff savings compound.
The built-in Battery Management System (BMS) automatically designates a master unit when multiple Dura5 modules are connected — no manual configuration required. The BMS handles cell-level balancing across all modules, protects against overcharge, overdischarge, overcurrent and overtemperature, and communicates system status to the hybrid inverter via CAN or RS485.
Duracell Energy Smart App — Intelligent Energy Management
The system integrates with the Duracell Energy smartphone app, which uses a UK-developed algorithm incorporating weather forecasts, solar generation predictions and real-time grid tariff data to automatically optimise charge and discharge cycles. Homeowners who fully integrate solar, battery, dynamic tariffs and the app report electricity bill reductions of up to 90%.
Plug-and-Play — All Cables Included
The Dura5 ships with all cables required for connection to a compatible hybrid inverter and for battery-to-battery connections in multi-module installations. This eliminates sourcing delays and wiring uncertainty, and simplifies the installer's job — particularly important during peak installation seasons.
UK Manufactured and Warranted
The Dura5 is manufactured under licence and warranty-supported by Puredrive Energy Limited in Toddington, Gloucestershire, UK. This means warranty claims, technical support and replacement units are handled domestically — avoiding the delays and complications of international warranty processes that affect some competing products.
⚠ Compatibility Notice: The Dura5 (PD-5KWH-50V-2G) is not compatible with Dura5+ or Puredrive battery systems. Always confirm inverter compatibility with your installer before purchase. The Dura5 requires a compatible hybrid inverter — it does not include an inverter.
Technical Specifications
Product & Model
Product Name
Duracell Energy Dura5
Model Number
PD-5KWH-50V-2G
Energy & Performance
Battery Module Energy
5.12 kWh
Usable Energy
4.6 kWh
Nominal Voltage
51.2 V DC
Operating Voltage Range (single phase)
43.2 V – 56.8 V
Max Continuous Output Current
100 A
Peak Output Current
110 A
Charge / Discharge Rate
1C / 1C
Cycle Life
8,000 cycles
Physical
Dimensions (W × D × H)
490 × 110 × 688 mm
Weight
51.5 ± 1 kg
Installation
Stackable (floor) or Wall-mount
Max Stack Configuration
16 units per stack × 2 stacks (32 units total)
Display
LED indicator
Cooling
Natural convection (passive — no fan)
Environment
Enclosure Protection
IP65
Installation Environment
Indoor or Outdoor
Operating Temperature — Charge
−10°C to +55°C
Operating Temperature — Discharge
−10°C to +55°C
Relative Humidity
5% – 95%
Max Operating Altitude
0 – 3,000 m (derating above 2,000 m)
Cell & Communication
Cell Chemistry
LiFePO4 (Lithium Iron Phosphate)
Communication Ports
CAN / RS485
Scalability
Up to 32 units in parallel operation
Warranty
Product Warranty
10 years
Warranty Support
Puredrive Energy Ltd, Toddington, Gloucestershire, UK
ℹ Installation Note: The Dura5 battery module requires a compatible hybrid inverter (not included) and must be installed by a suitably qualified electrician in accordance with BS 7671 (IEE Wiring Regulations), the manufacturer's installation instructions and any applicable DNO or G98/G99 notification requirements. For technical support contact Duracell Energy on 01386 577845
Frequently Asked Questions
Do I need solar panels to use the Dura5?
No — the Dura5 can be used as a standalone grid-connected storage system without solar panels. In this mode it charges from the grid during cheap off-peak periods (such as Octopus Go or Agile tariff windows) and discharges during expensive peak hours, reducing your electricity bill through tariff arbitrage. Solar panels are optional but significantly increase the financial return by eliminating import costs during the day.
What inverter does the Dura5 work with?
The Dura5 is compatible with the Duracell Energy Dura-i hybrid inverter range and a number of third-party hybrid inverters that support CAN or RS485 battery communication protocols at 51.2 V nominal. Always confirm inverter compatibility with your installer before purchasing. Note that the Dura5 is not compatible with Dura5+ or Puredrive systems — these use different BMS protocols.
How many Dura5 batteries can I connect together?
Up to 32 Dura5 modules can be connected in parallel, providing a maximum system capacity of 163.84 kWh (32 × 5.12 kWh). The physical configuration supports up to 16 units stacked per column, with two stacks in parallel. Additional modules can be added to an existing installation at any time — the BMS automatically recognises new units and selects the master without manual reconfiguration.
How does the 8,000-cycle lifespan compare to other batteries?
Most LiFePO4 home batteries are rated for 4,000–6,000 cycles. At 8,000 cycles, the Dura5 offers 33–100% more cycle life than typical competitors. Cycling once per day, 8,000 cycles equals approximately 21 years of daily use — well beyond the 10-year warranty period. This substantially improves the long-term cost per kWh delivered, which is the most meaningful measure of battery storage value.
Can the Dura5 really operate at -10°C without internal heaters?
Yes. The Dura5's LiFePO4 cells maintain their rated 1C charge and discharge performance at outdoor temperatures as low as -10°C without any internal heating element. Many competing batteries use internal heaters to protect cells in cold weather — but heaters consume stored energy and introduce additional failure points. The Dura5's cold-weather performance is a genuine differentiator for UK outdoor installations where overnight temperatures regularly fall close to or below freezing.
Related Products
Duracell Energy Dura-i Hybrid Inverter
Compatible inverter for Dura5 battery systems
Duracell Energy DuraCharger EV
7kW smart EV charger — integrates with Dura5 & app
Solar Panel Packages
Pair with PV panels to maximise Dura5 self-consumption savings
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
Get in touch with our team and receive a custom quote for your project
