Their film, trimmed to the parts that matter for a UK home: where it goes, how it works with solar, the cheap rate charging, backup, and the app.
Duracell Energy’s Dura5 film. Tap to play, with sound.
Most batteries make you choose your capacity on day one. The Dura5 lets you buy what you need now and add a module when the car or the heat pump arrives, and every module carries its own ten year warranty.
Each Dura5 is a 5.12 kWh block, 490 by 688 millimetres and 51 kilograms. Wall mount one or two, or stack them on the floor. The system takes up to 32 modules, far beyond any house, so growing is never a rebuild.
A one hour charge and discharge rate, 100 amps continuous per module, so a stack can carry the oven, the shower and the car charger at once and refill in a short cheap rate window overnight.
IP65, rated from minus 10 to plus 55 degrees, natural convection with no fans, and made to be mounted outside next to the meter or inside a garage. Plug and play cabling with automatic balancing between modules.
The chemistry with the best thermal stability in home storage, no cobalt, and the durability behind the 8,000 cycle rating. Cell level management in every module.
Duracell Energy’s own hybrid inverter in 3.6, 4.6, 5 and 6 kW sizes takes up to 10 kWp of solar, has a built in smart meter so there is one less box to fit, and gives a backup supply for essential circuits in a power cut.
The Duracell Energy app shows solar, battery, home and grid live and runs Tariff Intelligence, a UK developed routine that reads the weather forecast and your tariff and charges from the grid when it is cheapest.
Worth being precise about, because the badge is famous and the company is not.
Duracell Energy is a UK company based at Toddington in Gloucestershire, operating the Duracell name for home energy under licence from the battery brand. The products are designed, tested and distributed from there, and the ten year warranty is supported by the company behind it, Puredrive Energy, a UK battery maker since 2016.
A UK based support line and warranty department, spares and replacements from a UK stockholding rather than a container, and a product designed around UK tariffs, UK weather and UK houses. It also means we say plainly that the famous Duracell company does not make or warrant the battery; Duracell Energy does.
Figures from the Dura5 datasheet V5.7 (UK) and Duracell Energy’s product pages, September 2026. Specifications change; we confirm the exact models on your quote.
5 to 10 kWh nominal on the wall. Covers a typical evening for a two to three bedroom home with solar, and takes a cheap overnight window in winter.
15 to 20 kWh in a floor stack. A family home with an electric car or a heat pump, running most of the day and night from stored energy.
Stacks of up to 16, and up to 32 in parallel, for larger houses, farms and small commercial roofs. We survey and price these site by site.
| Module | Dura5, model PD-5KWH-50V-2G, 51.2 V lithium iron phosphate |
|---|---|
| Energy | 5.12 kWh nominal, 4.6 kWh usable per module |
| Power | 100 A continuous, 110 A peak per module (1C charge and discharge) |
| Cycles | 8,000 rated, about 35 MWh throughput |
| Scalability | Up to 32 modules in parallel, stacks of up to 16; wall mount or floor stack; add modules at any time |
| Size and weight | 490 x 110 x 688 mm, 51.5 kg |
| Enclosure | IP65, indoor or outdoor, natural convection, minus 10 to plus 55 degrees C |
| Inverter | Dura-i hybrid, 3.6 / 4.6 / 5 / 6 kW, up to 10 kWp solar, built in smart meter, backup supply for essential circuits |
| Warranty | 10 years, supported by Puredrive Energy in the UK |
| Certification | Installed under MCS for battery storage and solar PV by Energy Giants, with G98 or G99 notification to the network operator |
The same method as every battery job we do.
Your bills, your evenings, the roof if there is solar or solar is coming, the consumer unit, and where the modules would sit. A straight answer on how many you need, which is usually fewer than the brochure suggests.
Module count, inverter size, whether backup earns its place, and the network operator application. An itemised quote with the MCS estimate. No prices on this page because every stack is different.
Our own team, usually a day. MCS certificate for the battery, the electrical certificate, the G98 or G99 acknowledgement, the app on your phone and the warranty registered in your name.
We install four battery ranges and we say which fits.
Five kilowatt hour steps suit social housing where every home is sized differently, and the parallel stacks and three phase system suit small commercial roofs. We survey and price site by site.
No, and the datasheet says so. The Duracell name is used under licence by Duracell Energy, a UK company in Gloucestershire, and the product is designed, manufactured under licence and warranted by Puredrive Energy. We think that is a good thing: the people who answer the warranty line are the people who designed it.
The Dura5 and Dura-i are MCS certified products, and Energy Giants holds MCS certification for battery storage and solar PV, so every installation gets its own MCS certificates, which is what export payments and most funding require.
Yes. It is IP65 rated and specified for indoor or outdoor mounting, from minus 10 to plus 55 degrees. Most of ours go on an outside wall near the meter position or in a garage.
Usually. With the Dura-i hybrid inverter it takes the strings directly, replacing an older inverter, or it can be added on the AC side alongside your existing inverter. We check at the survey which is better.
The Dura-i inverter has a backup supply for essential circuits, so selected circuits can be kept running when the grid fails. Whole house backup depends on the loads and needs its own design; we quote it as an option.
Most homes with solar start with one or two; a home with a car or a heat pump usually wants three or four. The survey sizes it against your actual evening use, and you can add modules later without changing anything else.
It depends on the number of modules, the inverter and whether backup is included, so we do not publish a price. Our cost guide gives indicative ranges for whole systems, and the survey gives you an itemised figure.
Ten years on each module, supported by Puredrive Energy in the UK, with 8,000 cycles rated. Our workmanship is insurance backed through Bluedrop.
Free survey, itemised quote, an honest view on which battery suits you, and our own team on the install.
