Description
The Fox ESS EP11 is a 10.36kWh high-voltage lithium battery engineered for larger domestic and small commercial energy storage systems. With CAN-based integration and built-in warming and fire suppression, the EP11 delivers safe, efficient and scalable storage with minimal installation hassle. Up to four units can be connected in parallel, delivering a total capacity of 41.6kWh.
Why Choose This Product?
- Large capacity per unit: 10.36kWh per module for reduced cable runs and faster installation
- Cold weather charging: Internal warming circuit prevents performance loss in winter
- Robust safety: Onboard fire suppression and high-voltage architecture
- Flexible installation: IP65 enclosure for indoor or outdoor use — wall or floor mounted
- High discharge rate: Up to 65A peak output for high-demand properties
- Inverter ready: Pairs directly with Fox ESS H1, KH, H3, H3-Pro, and US series via CAN
Performance and Construction
Each EP11 module is built using lithium iron phosphate cells, offering over 6000 cycles at 90% depth of discharge. The system supports peak discharges of up to 65A for 60 seconds and 32.4A for 5 seconds, making it suitable for dynamic load environments. Its passive cooling setup removes the need for fans or moving parts, helping maintain low operational noise and zero maintenance.
Installation and Integration
The EP11’s plug-and-play wiring and included mounting kit make it a popular option for professional installers. It connects via CAN bus and is fully compatible with all major Fox inverter platforms. The system’s compact 147mm depth allows wall mounting even in space-constrained areas. Safety features like IP65 ingress protection and integrated fire suppression offer peace of mind in both residential and light commercial environments.
Who is it for?
- Installers: Needing a 10kWh+ module with safety features for larger installs
- Homeowners: With high energy usage or large PV systems
- Rural and SME sites: Where reliability, safety, and expansion are key
Technical Specifications
| Model | EP11 |
|---|---|
| Nominal Energy | 10.36kWh |
| Usable Energy | 9.32kWh (90% DoD) |
| Expandable Capacity | Up to 41.6kWh (4 units) |
| Nominal Voltage | 384V |
| Voltage Range | 348 – 438V |
| Cycle Life | >6000 cycles |
| Round-Trip Efficiency | >95% |
| Peak Discharge | 65A (60s) / 32.4A (5s) |
| Cooling | Natural convection |
| Fire Protection | Integrated fire suppression |
| Temperature Range | Charge: 0 – 55°C / Discharge: –10 – 55°C |
| Ingress Protection |
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