Tesla Powerwall 3
Tesla Powerwall 3 home battery: 13.5 kWh usable, 11.5 kW continuous. About $13,500 installed. Specs, surge, warranty and stacking.
All gear / Tesla Powerwall 3
Tesla
The default answer. Big inverter for its size, so one unit can start a central air conditioner.
Specifications
| Usable energy | 13.5 kWh |
|---|---|
| Continuous power | 11.5 kW |
| Surge | 44 kW (185 A locked-rotor start) |
| Chemistry | LFP |
| Coupling | DC hybrid, with a 20 kW solar inverter built in |
| Stacks up to | 4 units |
| Installed price | About $13,500 for the first, $11,500 each after |
| Warranty | 10 years, 70% capacity |
Source: Tesla datasheet; EnergySage 2026 pricing. Photo: Rsparks3, CC0, via Wikimedia Commons.