Duracell Energy Dura5
A 5.12 kWh lithium iron phosphate battery module that can be stacked or wall-mounted, rated 1C, IP65, with 8,000 cycles and a 10-year warranty.
- Best for smaller homes
- Installed battery
- 5.12 kWh
- 10-year warranty
- Made by Duracell Energy.
- Energy: 5.12 kWh per module, 4.6 kWh usable, 51.2 V LiFePO4.
- A battery module only: it needs an inverter, and the maker's own hybrid inverter is the Dura-i.
- Rated 1C: 100 A continuous (110 A peak), so it can charge or discharge fully in about one hour.
- 8,000 cycles, IP65, indoor or outdoor, stackable or wall-mounted, 10-year warranty.
Not tested by us
We have not tested the Duracell Energy Dura5. The figures on this page come from the sources listed at the end of the page, checked on 13 November 2026, and we do not show prices. "Best for" is based on what the maker says the product is designed for, not on our own tests.
Key figures
5.12 kWh
Module energy
8,000
Cycles
10 years
Warranty
Specifications
Last checked on 13 November 2026. The grey text under each name explains what the value means. To see it next to other products, compare it in our comparison tool.
| Specification | Value |
|---|---|
| Storage | |
| CapacityHow much energy the battery stores. Bigger means longer runtime or more of your own solar power used later. | 5.12 kWh per module (nominal) |
| Usable capacityThe part of the stored energy you can actually use. It is lower than the nominal capacity. | 4.6 kWh per module |
| Battery chemistryLFP (lithium iron phosphate) cells are known for long life and stable behaviour with heat. | Lithium iron phosphate (LiFePO4) |
| Depth of dischargeHow much of the battery can be emptied without harming it. 90% means 10% is kept in reserve. | Not stated as a percentage; usable 4.6 kWh of 5.12 kWh is about 90% (our calculation) |
| Cycle lifeHow many full charge and discharge cycles the cells are rated for before they hold less than the stated share of their original capacity. | 8,000 cycles; energy throughput 35 MWh |
| ExpansionExtra battery units that add storage to the same system. | Modular: up to 32 units in parallel, in stacks of 16; Duracell says more batteries can be added at any time |
| Power | |
| Charge and discharge powerHow fast the battery can take in and give out energy. It sets how many devices it can serve at once. | Maximum 100 A (peak 110 A) at 51.2 V nominal, rated 1C; about 5.1 kW per module (our calculation from 100 A x 51.2 V). Duracell says it charges or discharges fully in one hour. |
| Nominal voltageThe voltage the battery is rated for. It decides which inverter or system voltage (12, 24 or 48 V) it fits. | 51.2 V DC |
| Operating voltageThe range of solar panel voltage the unit can use. Panels outside this range will not charge it properly. | 43.2 to 56.8 V DC |
| Round-trip efficiencyThe share of the energy you put in that comes back out. The rest is lost as heat. | Not published by Duracell Energy |
| Backup in a power cutWhether it can keep selected circuits running during a grid outage. | Duracell says the home will keep running during storms or outages; the battery itself has no AC output, so this depends on the inverter system |
| Solar | |
| Solar inverterTurns the DC power from solar panels into AC for the home. Built in means no separate solar inverter is needed. | None: this is a battery module only. Duracell's own hybrid inverter is the Dura-i (3.6, 4.6, 5 and 6 kW) |
| Solar and off-grid | |
| Works with solar panelsWhether you can charge it from solar panels. Yes means a built-in solar input or a compatible solar setup; read the detail for the voltage and power limits. | Yes: Duracell positions it as a solar panel battery, with solar connected through an inverter; it has no solar input of its own. |
| Off-grid useWhether the maker describes it running with no grid connection at all, for example in a cabin, van or off-grid home. Backup only means it covers power cuts but needs the grid the rest of the time. | Partly: Duracell describes keeping the home powered during outages; it does not describe stand-alone off-grid use. |
| Connection and housing | |
| Grid connectionThe supply type it is built for. Check it matches your home's supply. | Not applicable: the module connects to an inverter over DC (communication CAN / RS485) |
| Dimensions (W × D × H)Check the space before you buy, including room around it for airflow and cables. | 490 × 110 × 688 mm |
| WeightMatters for lifting, wall mounting and moving it. | 51.5 kg (±1 kg) |
| MountingWhere and how it can be fixed: on the floor, on a stand or on a wall. It decides the space and the wall strength you need. | Stackable or wall-mounted |
| Protection ratingIP ratings show protection from dust and water. IP55 and IP65 are rated for outdoor-style exposure; check the installation guidance. | IP65; indoor or outdoor; humidity 5 to 95% |
| Operating temperatureThe range it is rated to work in. Cold and heat can reduce performance. | -10 to 55 °C for both charging and discharging; altitude 0 to 3,000 m (derating above 2,000 m) |
| Battery heatingA built-in heater that lets the battery charge in cold weather. | No: Duracell says it works down to -10 °C without internal heaters |
| CoolingHow the heat is removed. Natural cooling is silent; air cooling uses a fan. | Natural convection |
| DisplayWhether the unit has its own screen showing charge level and power in and out. | LED indicator |
| ConnectivityHow you monitor and control it, usually through an app. | CAN and RS485 communication ports |
| CertificationsSafety and grid standards the maker says the product meets. | Not published by Duracell Energy on the datasheet |
| Warranty | |
| WarrantyThe period the maker covers. Read the terms: conditions and capacity guarantees differ. | 10 years |
Compatible with
What Duracell Energy says this product works with. Anything not listed here is not confirmed.
- Inverters
- Duracell lists the Dura-i hybrid inverter as its own inverter; the datasheet does not name other compatible inverters.
- Expansion
- Up to 32 units in parallel (stacks of 16).
- Installation
- Wall-mounted or stacked, indoors or outdoors.
Rules where you live
An installed battery normally needs a qualified electrician, and in many countries you must also tell your grid operator, especially if it can export. This is not a plug-in battery. Rules, incentives and tax treatment differ by country: see our country guides for what applies where you live.
Strengths and things to check
Strengths
- 8,000 cycles and a 10-year warranty
- Stackable or wall-mounted, up to 32 units
- IP65 and rated for indoor or outdoor use
- Works down to -10 °C without internal heaters
Worth checking before you buy
- Battery module only: needs an inverter, and compatible makes are not listed
- 4.6 kWh usable per module, so most homes need several
- 51.5 kg per module is heavy for wall mounting
- Round-trip efficiency and certifications are not on the datasheet
Change log
We record changes to this page here, so you can see when figures such as the warranty were last updated.
- 13 November 2026
- Page published. Figures are from the Duracell Energy Dura5 datasheet (version V5.7) and the Dura5 product page. Warranty at publication: 10 years.
Where this information comes from
We have not tested this battery. Every figure above comes from Duracell Energy's Dura5 datasheet (version V5.7) and product page, last checked on 13 November 2026. Where a figure is our own calculation it says so. A value that Duracell Energy does not publish is shown as Not published by Duracell Energy.
We do not show prices, because they depend on the installer's quote.
- Manufacturer Duracell Energy Dura5 datasheet (V5.7)
- Manufacturer Duracell Energy Dura5 product page
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Common questions about Duracell Energy Dura5
How much does one Dura5 store?
Duracell lists 5.12 kWh per module and 4.6 kWh usable. Modules can be combined, up to 32 in parallel.
Can the Dura5 be used outdoors?
Duracell gives it an IP65 rating and lists it for indoor and outdoor environments, with an operating range of -10 to 55 °C.
What warranty does the Dura5 have?
Duracell lists a 10-year warranty and 8,000 cycles.
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