Fox ESS vs Duracell

Comparing Fox ESS and Duracell home batteries for UK homes. Every price below is fully installed by an MCS-certified installer.

Installed from

£3,659

£4,700

Best £ per kWh

£373

£294

Sizes

5.76, 11.52 kWh

16 kWh

Warranty

10 years

Cycle life

6,000+

8,000

IP rating

IP65

Solar panels

Hybrid – direct solar input (2 MPPT)

Hybrid or AC-coupled (depends on inverter)

Chemistry

LFP

App

FoxCloud 2.0

Duracell Energy

Lowest entry price

Fox ESS

Best value per kWh

Duracell

Largest single system

Duracell

Why Fox ESS

UK #1 by shipments. Ranked the UK's top residential battery brand by S&P Global shipment data.
Modular & stackable. Start with one EP6 or EP12 and add more batteries later, up to 4 units.
Heated batteries. Smart battery warming keeps cells charging efficiently through UK winters.
Indoor or outdoor. IP65 rated, floor or wall mounted, with built-in fire suppression.

8,000 cycles. One of the highest cycle ratings in its class, with a 10-year warranty.
Outdoor ready. IP65 rated and fanless, so it runs silently inside or outside.
UK support. Designed, warrantied and supported by a UK company.
Expandable. Modules auto-balance, so you can add capacity later.