I have 2x 100w panels ran in series on my van to a VictronConnect 75/15 charge controller and a 170ah lithium battery. I have used this set up for over 18 months with zero issues. Over the last 2 weeks my charge controller says “why is the charger off” and has not shown any watts come in over the past 15 days. I checked all fuses and wires and they are all fine. The only thing I could think of was I camped in 5 degree weather for 3 days but even resetting the charge controller, nothing. I checked last week and I was getting 21v of solar to the charge controller pv and 13v to the battery side of my charge controller (nothing has ever been connected to the load terminals). Does anyone have any ideas?
