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diy solar

One Last Daly question SOC slowly decreasing although cell voltage is not

tryn2lrn

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One Last Daly question SOC slowly decreasing although cell voltage is not. Finally got the Daly unit working as I expect but the last issue I am seeing is that the SOC is slowly decreasing daily even thought the cells have not changed more than a millivolt. I set it for 100% last night and measured the cells voltages, cells didn't move but SOC today is 99.6%. I have set it for 100% for a few days and every day it is less but all 4 cells are the same. Is there some kind of self discharge setting somewhere I don't know about. I have bluetooth enabled all the time and an external active balancer but neither of those should be causing this. Does anyone else see this issue? No response from Daly.
 
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