Originally Posted by Lorriebear
Thank you, I will test the battery. Question, If the camper is plugged into the vehicle for towing, would the truck battery power the camper?
Yes, IF: 1. Towing vehicle output power is on and fuses not blown (common). 2. Connections are good. 3. Trailer battery capable of receiving a charge. (may be a fuse in-line here, too).
But even if the battery is shot, if all those conditions are met, you should have more indication of 12 volt power in the trailer when the tow vehicle is running.