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Battery charges at only 1 to 3 watts
reported more than once
Symptoms
The battery suddenly does nothing: the app shows it charging at 1 to 3 W while it slowly discharges, or one battery of two drops off the inverter hub entirely and stays off
Alerts and codes
3x6B
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.