Theoretically my mppt solar controller is supposed to adjust the Absorb and Float set points by -5mv/cell/degreeC against a 25C standard. I have a 12V bank of 4 GC2s. So that is 6 cells? or 30mv/...
Hint: I found linkage between voltage and resistor error in my DMMs. Therefore I now periodically verify with an ultra precision 5ppm calibration resistor. And I have no idea why this works :)
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