FoxESS Energy Cube (EQ)
Floor-standing high-voltage modular battery with plug-and-play stacking.
Capacity
4.32–41.93 kWh (modular)
Power
5 kW
Warranty
10 years
Installed price
£3,200–£9,000
Overview
The FoxESS Energy Cube (EQ) is a floor-standing, high-voltage modular battery built from LFP prismatic cells, with a plug-and-play design that stacks in series to save installer time. It comes in three model lines: EQ4300 (4.32 kWh modules, up to 30.24 kWh), EQ4800 (4.66 kWh modules, up to 41.93 kWh) and EQ5000 (4.92 kWh modules, up to 29.52 kWh), so an installer can right-size it from a small bill-trimmer to a large export-ready bank. All EQ batteries deliver a 90% depth of discharge, >95% round-trip efficiency and a 6,000-cycle life, and pair with a FoxESS hybrid inverter.
Pros
- Three model lines scale from 4.32 kWh to 41.93 kWh
- 90% depth of discharge, >95% round-trip efficiency, 6,000 cycles
- Plug-and-play series stacking for a fast install
- IP65, indoor or outdoor; competitive price-per-kWh
Worth knowing
- Battery only: needs a matching FoxESS hybrid inverter
- Floor-standing, so it needs more space than a wall unit
Best for
Buyers who want to start small and expand, or right-size to any home
Suits the Trim your bills and Cover your peak and Export & earn tiers in our battery finder.
Model comparison
| Specification | EQ4300 | EQ4800 | EQ5000 |
|---|---|---|---|
| Module capacity | 4.32 kWh | 4.66 kWh | 4.92 kWh |
| Scalable to | 30.24 kWh | 41.93 kWh | 29.52 kWh |
| Max modules (series) | 7 | 9 | 6 |
| Round-trip efficiency | >95% | >95% | >95% |
| Depth of discharge | 90% | 90% | 90% |
| Cycle life | 6,000 | 6,000 | 6,000 |
Technical specifications
Electrical
- Battery type
- LFP (LiFePO₄) prismatic
- Round-trip efficiency
- >95%
- Depth of discharge
- 90%
- Cycle life
- 6,000
- Max charge/discharge current
- 50 A
- Peak discharge current
- 65 A @ 60 s
- Communication
- CAN
Operating conditions
- Installation location
- Indoor / outdoor
- Operating temp (charge)
- 0 to 55 °C
- Operating temp (discharge)
- −10 to 55 °C
- EQ5000 warm-up option
- −25 to 55 °C
- Cooling
- Natural convection
- Humidity
- 5–95% (no condensation)
- Max. altitude
- 3,000 m
Protection & certification
- Ingress protection
- IP65
- Safety
- IEC 62619
- EMC
- IEC 61000-6-1/2/3/4
- Transport
- UN 38.3
Compare with other batteries
Compare these side by sideGrowatt
Growatt ARK XH
5.12–17.92 kWh (modular)
£3,200–£6,500
Compare with FoxESS Energy Cube (EQ)FoxESS
FoxESS EP Series
5.18–41.6 kWh (modular)
£3,200–£7,800
Compare with FoxESS Energy Cube (EQ)Duracell
Duracell Dura16 LV
14.4 kWh usable (scalable to 12 units)
£4,500–£7,500
Compare with FoxESS Energy Cube (EQ)Want quotes for the FoxESS Energy Cube (EQ)?
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