I know! This question have been asked before, and I think I have read every answer twice...and I am still not able to get my system to behave as I want.
System consists of 2x24V 100Ah LiFoPo4 batteries wired in parallel, SmartShunt, SmartSolar Charger MPPT 100/50, MultiPlus-II 24/3000/70-32, Cerbo GX and some other bits that are not important here.
I tried to configure the SmartShunt as per. the manual:
Charge Voltage: 26,7 ( SmartSolar float - 0,3v)
Tail Current: 2%
Charged detection time: 3 minutes
But this resulted in SOC resetting to 100% every morning when the SmartSolar started charging.
Based on the description of what the parameters does, and the graphs I could pull from vrm, I then tried to set the charge voltage to 28V and lowered the detection time to 2 min. But now the SOC does not reset even when the SmartSolar is done charging.
Below are graphs of such a scenario:
I do not understand why the SOC was not reset to 100% when the voltage was >28V and amperage was close to zero for many minutes?
Settings for the SmartShunt are:
Settings for the SmartSolar are:
I hope you guys can help here, because I don't understand it :)