EG4 › battery management system (BMS)
314Ah WallMount charges at only 15 A when warm
manufacturer says
Symptoms
- A new 314Ah Indoor WallMount accepts only about 15 A / 750 W of charge at ordinary room temperature no matter how much PV or grid power is available
- The bank takes far longer than expected to recharge and, depending on the system, excess solar is sold to the utility or curtailed to zero
- The battery's firmware version reads Z03T13
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.