Sigenergy
Sigenergy SigenStor
4.7 8kWh module
A modular 5-in-1 system (inverter, battery, energy management and optional EV DC charging) that scales to 80kWh, with a standout 15-year warranty.
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Specifications
| Usable capacity | 8.06 kWh |
|---|---|
| Power output | 6 kW |
| Max with expansion | 80 kWh |
| Chemistry | LFP |
| Whole-home backup | Yes |
| Warranty | 15 yrs |
Our verdict
The most future-proof choice: huge expansion headroom, integrated EV charging and the longest warranty here. Increasingly the installer favourite where budget allows, especially for homes planning an EV.
Pros
- Expands to 80kWh
- 15-year warranty
- Optional EV DC charging
- High power
Cons
- Premium pricing
- Newer brand in the UK