finance
Fox ESS 11.5 kWh
The EP12 is a higher-capacity high-voltage LFP battery with 11.52 kWh per unit, paired with Fox ESS's H1 single-phase hybrid inverter. Add up to four units in parallel for 46.08 kWh, installed indoors or out on the floor or wall.
- 11.52 kWh nominal energy
- Scalable up to 46.08 kWh
- 90% depth of discharge
- IP65 – indoor or outdoor
- Floor or wall mounting
- Smart battery warming
- Built-in fire suppression
- Includes H1-3.7-E hybrid inverter
Price includes full installation by an MCS-certified installer. No hidden extras.
Representative example: cash price £4,300, deposit £0, credit £4,300 over 120 months at £58/month. Total payable £6,931. 10.9% APR representative (fixed). Subject to status. Credit provided by Emerald Solar's finance partner.
Not ready to buy? A battery expert will call you — no obligation, no hard sell.
Our team will contact you within 2 working days to book your MCS-certified install.
How much could a battery save you?
Live tariff prices for your area, yearly saving and monthly finance vs saving for every battery.
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Full MCS-certified installation
One fixed price covers the battery, the installation by an MCS-certified installation company, and everything needed to get your system running.
- Battery & inverter (typically 5 kW)
- MCS-certified installation
- Pre-install chat + photos/video of your fuse box
- Delivery to your home
- All mounting, cabling & isolators
- DNO notification / approval (G98/G99)
- Electrical installation certificate
- Building regulations sign-off
- Commissioning & testing
- App setup & Wi-Fi connection
- Full customer handover
- MCS certificate & warranty registration
- 2-year workmanship warranty
- Removal of packaging & waste
Specifications
Manufacturer datasheet ↗- Heating
- Smart battery warming
- Mounting
- Floor or wall
- Warranty
- 10 years
- Chemistry
- LFP
- IP rating
- IP65
- Cycle life
- 6,000+
- Scalable to
- 46.08 kWh (4 units)
- Battery size
- 710 × 640 × 185 mm
- Communication
- CAN
- Battery weight
- 98 kg
- Nominal energy
- 11.52 kWh
- Operating temp
- -25 to 55 °C
- Inverter output
- 3.68 kW
- Nominal voltage
- 384 V
- Usable capacity
- 10.37 kWh (90% DoD)
- Solar connection
- Hybrid – direct solar input (2 MPPT)
- Depth of discharge
- 90%