Hi,
the batteries started showing SOC 17% but the voltage is 48.52V, the SmartShunt showed 35%, I disconnected the whole system, turned off the batteries, started the system but it still shows SOC 17%. After restarting the SmartShunt shows 100% ok, that's not a problem, it's set up that way so it doesn't bother me.
What I don't quite understand is why the pylontech suddenly started showing 17% but the voltage shows 48.5V SmartShunt before the restart showed 35% the voltage was 48.7V, I trust SmartShunt more than the BMS measurement :) .
For about 1/2 year the values were almost the same (pylon vs smartshunt), the difference was only a few tenths of volts.
I've been draining the batteries below 30%, so I'm a bit confused. Are you looking for a fault in the batteries or somewhere else? I'm confused that the BMS voltage shows fine, +- also measures the MPII, SmartShunt and BMS voltages :)
If these cells were faulty, I assume the voltage would be lower. Am I thinking wrong?...
Thanks for help.
