FoxESS EP Series
High-voltage modular battery. Floor or wall mount, IP65.
Capacity
5.18–41.6 kWh (modular)
Power
5 kW
Warranty
10 years
Installed price
£3,200–£7,800
Overview
The FoxESS EP Series is a high-voltage, LFP modular battery available in three module sizes: EP5 (5.18 kWh), EP6 (5.76 kWh) and EP11 (10.36 kWh), each scalable up to four units in parallel for as much as 41.6 kWh. Rated IP65 for indoor or outdoor installation and mountable on the floor or wall, it pairs with a FoxESS hybrid inverter to cover anything from a small bill-trimmer to a large export-ready system. A 90% depth of discharge and 95% round-trip efficiency mean very little of your stored energy goes to waste.
Pros
- Three module sizes scale from 5.18 kWh to 41.6 kWh
- High 90% depth of discharge and 95% round-trip efficiency
- IP65 for indoor or outdoor installation, floor or wall
- High-voltage architecture; competitive price-per-kWh
Worth knowing
- Battery only. Needs a matching FoxESS hybrid inverter
- Continuous power is set by the paired inverter
Best for
Homes wanting a flexible high-voltage stack, floor- or wall-mounted
Suits the Trim your bills and Cover your peak and Export & earn tiers in our battery finder.
Model comparison
| Specification | EP5 | EP6 | EP11 |
|---|---|---|---|
| Nominal energy | 5.18 kWh | 5.76 kWh | 10.36 kWh |
| Scalable to | 20.8 kWh | 23.04 kWh | 41.6 kWh |
| Nominal voltage | 192 V | 192 V | 384 V |
| Operating voltage | 174–219 V | 174–219 V | 348–438 V |
| Dimensions (W×H×D) | 380×625×147 mm | 380×640×185 mm | 710×625×147 mm |
| Weight | 50.5 kg | 51 kg | 99 kg |
Technical specifications
Electrical
- Battery type
- LFP (LiFePO₄)
- Round-trip efficiency
- 95%
- Depth of discharge
- 90%
- Communication
- CAN
- Display
- LED
- Scalability
- Up to 4 units in parallel
Operating conditions
- Installation location
- Indoor / outdoor
- Operating temp (charge)
- 0 to 55 °C
- Operating temp (discharge)
- −10 to 55 °C
- With warm-up (optional)
- −25 to 55 °C
- Cooling
- Natural convection
- Humidity
- 5–95% (no condensation)
- Max. altitude
- 3,000 m
Protection & certification
- Ingress protection
- IP65
- Fire protection function
- Yes
- Safety
- IEC 62619
- EMC
- EN IEC 61000-6-1/2/3/4
- Transport
- UN 38.3
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