SolarEdge › battery management system (BMS)
Battery loses 10 percent charge overnight idle
reported in the field
Symptoms
- A battery on reserve/backup standby loses roughly 10% of its charge (970 Wh in this case) over an 11-hour idle night, well beyond what the app's own displayed ~20W standby drain would predict (which would only account for about 2%)
- Other owners report normal overnight losses of only 1-3%
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.