EG4 › MPPT / charge controller
Charge voltage stays at bulk instead of float
reported more than once
Symptoms
- With battery type set to Lead-Acid and voltage-based charging used to manage a non-communicating LFP pack, charge voltage rises to the bulk/EQ setpoint and holds there for the rest of the day instead of dropping to the programmed float voltage
- A 6000XP also cannot properly equalize a lead-acid bank, cycling the generator on and off rapidly without ever completing a real multi-stage charge
- And DIY, non-top-balanced cells shut inverter output off (Error 04) each time one series-connected pack reaches its per-cell limit before the rest
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.