Tesla Powerwall › battery pack
Powerwall 2 capacity falls below 70% warranty floor
reported more than once
Symptoms
- Usable capacity well under 13.5 kWh
- Full-discharge/full-recharge cycles show under 70% of rated
- Older units (2019 to 2020 installs)
- Degradation worse with deep nightly discharge
The cause and the fix
Subscribers see the cause, the fixes that worked and who did them, part numbers and recent prices when a part is involved, and the field reports behind this entry.