TeslaPowerwall 3
The Tesla Powerwall 3 is a home battery with usable capacity 13.5 kWh, charge power (continuous) 5 kW and warranty 10 years.1,2
Key figures
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SEAI home battery grant
UnknownA €600 grant for home battery storage systems was announced on 29 September 2026 and opens from 6 October 2026, subject to final implementation arrangements. Check SEAI for the detailed conditions before applying.
Technical specifications
| General | |
|---|---|
| Wi-Fi / app | Yes2 |
| Performance | |
| Usable capacity | 13.5 kWh2 |
| Smallest configuration | 13.5 kWh2 |
| Expandable up to | 94.5 kWh2 |
| Charge power (continuous) | 5 kW2 |
| Discharge power (continuous) | 11.04 kW2 |
| Electrical | |
| Phases | 11 |
| Backup power | Yes2 |
| Dimensions & weight | |
| IP rating | IP552 |
| Min. operating temperature | -20 °C2 |
| Width | 609 mm2 |
| Height | 1,105 mm2 |
| Depth | 193 mm2 |
| Weight | 130 kg2 |
| Warranty & lifespan | |
| Warranty | 10 years2 |
Manufacturer documentation
- Product page
- Datasheet / specifications — Powerwall 3-Datablad – 2026
External links to Tesla's official website. The manufacturer may change or move documents; where they differ, the manufacturer's latest version applies.
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Frequently asked questions
Sources
- ENA Type Test Register (inverters) — Energy Networks Association (ENA) · accessed 27 Sept 2026
- Powerwall 3-Datablad, 2026 — Tesla, Inc. · accessed 27 Sept 2026
- SEAI home battery grant — Sustainable Energy Authority of Ireland (SEAI)