Fox ESS ECS Cube vs SolaX Triple Power T58
A side-by-side look at the Fox ESS ECS Cube and SolaX Triple Power T58. Winning figures are highlighted.
| Fox ESS Fox ESS ECS Cube | SolaX Power SolaX Triple Power T58 | |
|---|---|---|
| Price from | — | — |
| Usable capacity (base) | 2.59 kWh | 5.8 kWh |
| Power output | 3.5 kW | 6 kW |
| Max with expansion | 15.5 kWh | 46 kWh |
| Chemistry | LFP | LFP |
| Backup capable | No | Yes |
| Warranty | 10 yrs | 10 yrs |
Best value per row highlighted. Prices last checked 21 July 2026.
Fox ESS ECS Cube
Modular pricing makes Fox ESS attractive when you want to start small and expand. Pair with a Fox hybrid inverter for the smoothest setup.
Full Fox ESS ECS Cube review →SolaX Triple Power T58
The natural battery choice if you're fitting (or already have) a SolaX inverter — tidy integration and big expansion headroom at a competitive price. Less compelling with a non-SolaX inverter.
Full SolaX Triple Power T58 review →