Tesla Β· Home Batteries
Tesla Powerwall 3: Specs, Warranty & Reviews
An all-in-one battery with a built-in solar inverter, 13.5 kWh of usable storage and configurable output up to 11.04 kW in the UK.
Specifications
- Usable energy (AC)
- 13.5 kWh
- Continuous AC output
- 3.68β11.04 kW (configurable)
- Max continuous charge power
- 5 kW (8 kW with Expansion units)
- Solar-to-battery-to-home efficiency
- 89%
- Scalability
- Up to 4 Powerwall 3 units, plus up to 3 Expansion units
- Grid connection
- Single phase, 230 V
- Enclosure rating
- IP55 (IP67 battery & power electronics)
- Operating temperature
- β20Β°C to 50Β°C
- Dimensions / weight
- 1105 Γ 609 Γ 193 mm / 130 kg
- Backup
- With Backup Gateway 2
- Warranty
- 10 years (requires reliable internet connection)
Source: Tesla Powerwall 3 Datasheet (UK, 2026) Β· checked 4 November 2026. Specs can change between product revisions β confirm with your installer.
Owner reviews
Submitted by owners and checked by us before publishing.
No owner reviews yet. Own a Tesla Powerwall 3? Share how it has worked for you.
Compare with
Specifications come from manufacturer datasheets, checked 4 November 2026. We have not lab-tested these products and donβt give them scores; ratings shown are from moderated customer reviews only. We are not paid by manufacturers and these pages contain no affiliate links. How we compare products.