I have a 12 volt system with Smartshunt 500A, Cerbo GX and Battery protect indicating same voltage of 14.8 volt but MPPT 100/30 indicating battery voltage is 13.5 volt. (when I measure voltage at MPPT it measures 14.8 volt)
How is this possible?
Asking this as with very sunny days the Battery Protect switches of as Voltage > 16 volt.
At themoment I use normal 75 ah lead battery and installed battery protect to exchange to lithion battery, with build in BMS after the winter.