Recently my SOC kept showing less and less (down to 46 % before I partially solved the problem) even though the battery showed 28,2 volts (24 volt lithium Ion battery -Easysolar 3kVA).
I set the charging values on the multiplus lower than the MPPT (since I dont have a bluetooth dongle yet I cant adjust the MPPT charging parameters) after reading about this here on the forum.
The SOC then bounced up to 100% -but the maximum SOC % is slowly going down again by a rate of 0,5% per day:
Now the SOC is showing 97% as todays highest although the battery voltage is the same (28,2 volt).
Any tips on how to solve this?