Hello. I've started m'y road trip but I have no 12V wheel I am disconnect of 110V. It works well when I am connected ah 110V. I don't know uf it's the batteur, the charger... Any idear? A...
If none of the above works, find an RV repair service. Might be a bad auxiliary battery on/off switch, blown fuse, disconnected wire or corroded house battery connector.