Originally Posted by tmmar
Do you know which magnum you have in your coach? Mine is a 2000 watt inverter/charger, and as far as I know, it charges the chassis batteries as well as the house batteries. Also, is the battery disconnect switch in the chassis battery compartment set to the 'on' position?
I have the smaller inverter/charger (do not have the residential fridge). Everything I have read, states that the charger only charges the house batteries not the chassis. I have never turned the disconnect switch off. I did just the other day turn them off to see if they hold a charge.