Tesla Powerwall 3 vs SolarEdge Home Battery (400V)
A straight, side by side read on specs and warranties, with the honest caveats. Every figure is from the manufacturer datasheet; sources are at the bottom.
Figure - Specs to scalebars vs the largest in our database
| Spec | Tesla Powerwall 3 | SolarEdge Home Battery (400V) |
|---|---|---|
| Chemistry | Not published | Not published |
| Usable capacity | 13.5 kWh | 9.7 kWh |
| Continuous power | 11.5 kW | 5 kW |
| Peak power | Not published | 7.5 kW |
| Round-trip efficiency | 89% | 94.5% |
| Warranty | 10 years | 10 year limited product warranty |
| Backup scope | Whole-home capable | Partial / essential loads |
| Inverter | Integrated | Separate |
What actually differs
- More usable capacity: the Tesla Powerwall 3 offers 13.5 kWh vs 9.7 kWh, so at that size it carries more of your home for longer per charge.
- More continuous power: the Tesla Powerwall 3 sustains 11.5 kW vs 5 kW, which matters for running big loads like an AC at once.
- Integration: the Tesla Powerwall 3 has a built-in inverter, while the SolarEdge Home Battery (400V) needs a separate one, which affects install cost and complexity.
- Efficiency is not apples to apples here: the Tesla Powerwall 3 quotes 89% (solar round trip (solar to battery to home), CEC weighted; not a pure AC to AC figure) and the SolarEdge Home Battery (400V) quotes 94.5% (peak round trip efficiency), so do not read the raw numbers as a direct ranking.
Which one pays off is a numbers question.
Neither spec sheet tells you the payback in your home. That comes from your rate plan and incentives.
Run the Worth It calculator →Sources
Source: Tesla Powerwall 3 datasheet, 2026. Specs verified 2026-07-01. Figures are per single unit at beginning of life; confirm the current datasheet with your installer.
Source: SolarEdge Home Battery 400V datasheet, Jan 2026. Specs verified 2026-07-01. Figures are per single unit at beginning of life; confirm the current datasheet with your installer.