New battery added after calibration last night fully discharged well, then full charged over night ok. Just now when batteries being used only 2 of the batteries are draining while other two staying at 100% any ideas on how to fix or work around?
I recently had a similar problem after upgrading the inverter firmware, but with two batteries (second battery stuck at 100% and capacity being reported half actual capacity). It needed the battery firmware to be upgraded to 3020. It might be the same issue. Have a look through:
https://community.givenergy.cloud/d/5915-second-battery-not-being-used-by-ac3-inverter