Check how much power you have at the house battery's should be 12.5 or a little less if they are close to full. If down around 12.1 or less you will need to charge them. When you turn the disconnect switch off some things are always on Propane detector,radio memory, etc. It could be you have so much still drawing power it drained your battery's.Did you have the switch on when you had it plugged in over night if so the converter or inverter/charger should have recharged the battery's. If the switch was not on it's possible the converter/charger or inverter/charger were not on to recharge the battery's.