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Powerwall 3 Expansion
13.5 kWh expansion that bolts to a Powerwall 3. It does not add continuous watts. Tesla's spec says the pack is not field-serviceable. Wall-mounted weight with cover and bracket is 261.2 lb. Up to three expansions can stack behind one Powerwall 3 on the floor.
More hours of backup without another inverter
- Continuous
- —
- Stored
- 13.5 kWh
- Noise
- —
- Weight
- 242.5 lb
Specifications
| Fuel | Battery |
|---|---|
| Voltage | DC to a Powerwall 3 |
| Engine | Battery only, model 1807000-xx-y |
| Runtime note | Adds 13.5 kWh. Output watts stay whatever the leader Powerwall 3 is configured for. |
| Noise note | No inverter of its own |
| Start | Automatic, with a Powerwall 3 |
| THD | Uses the Powerwall 3 inverter |
| Warranty | 10-year, with the Powerwall 3 system |
| Price note | Sold only as an add-on to Powerwall 3, installer-quoted |
| Source | Tesla Powerwall 3 Expansion specifications, installation manual |