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ruds23 asked

Easy Solar II charge settings do not match actual charge

Hi there, first time poster here. I have an Easy Solar II system charging a 48V bank of A602/520 Sonnenschein batteries. There is a BMV 700 also installed. The charge voltages are set through the Victron Connect app at V absorb = 56.4V, V float = 55.2V, V equalization 57.6V as per the battery manufacturers recommendations. The actual charge rates, as measured by the battery monitor, are V absorb = approx 55.5, V float - approx 54.4V, which appears to be resulting in an undercharged battery.


I have double checked the settings, including via Victron Connect and VE Configure, and I think it looks as it should.


Any ideas why the actual charging does not match the charge settings? Is this something to be concerned about?


Thanks very much for your help

battery charging
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2 Answers
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klim8skeptic answered ·

What temperature compensation figures have you set?


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ruds23 answered ·

It is set ay -96.00 mV/deg C

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ruds23 avatar image ruds23 commented ·
Battery temp is currently 22 deg C. The system has been installed for about 2 years now. The charge voltage has been pretty much the same as described above the whole time. Winters aren't too cold here, minimum battery temp is probably around 15 deg C
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