all of a sudden my smart solar controller 75/15 is set to 13.8volts in float setting, but will only float at 13.6 volts, why is this? i see a few ppl having same issue
asked
solar controller 75/15.. floats below set point
Do you have lead acid batteries and has the temperature recently increased. If so it may be the temperature compensation coming into play reducing the voltage at higher temperature. I am in the UK and temperature s have increased over the past week to 10 days and mine is now floating at 13.65V. If your system does not have a temperature sensor on the batteries I believe that the controller uses its own temperature, which if it is in a cupboard say can be warmer than the ambient temperature.
