The strongest value-per-kWh in residential storage. The FoxESS ECS is a modular high-voltage LiFePO4 battery tower that starts at a single 2.76 kWh module and stacks to 33.2 kWh — letting you buy exactly the capacity you need and add more later.
Why it stands out
FoxESS is one of Europe’s fastest-growing battery brands, and the reason is simple: aggressive pricing (around €500/kWh) without cutting corners on chemistry or protection. LiFePO4 cells, a 90% depth of discharge, an IP65 outdoor rating and a 10-year warranty make it a genuine Tier-1 value pick. It pairs with FoxESS hybrid inverters and supports open protocols for broad compatibility.
Key specifications
| Module capacity | 2.76 kWh (ECS2900) — also 5.18 / 5.76 kWh options |
| Stacking | 1–7 modules (up to 33.24 kWh) |
| Battery chemistry | LiFePO4 (LFP) |
| Depth of discharge | 90% |
| Protection | IP65 (indoor / outdoor) |
| Communication | CAN / RS485, internal BMS |
| Warranty | 10-year |
| Compatibility | FoxESS inverters + open protocols |
What’s included
- FoxESS ECS battery module(s) + BMS
- Mounting hardware
- Installation by a certified partner
Who it’s for
Value-conscious homeowners who want Tier-1 storage at the best price per kilowatt-hour, with room to expand.
Warranty & support
10-year manufacturer warranty (FoxESS). We configure the right module count and inverter pairing for your home at order.
Pricing shown is a current EU retail reference; final price and availability are confirmed at order.
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