I have a 1999 Viking popup camper. I recently bought it and been working out the bugs. The previous owner converted the camper by taking out the axle and placing the camper on a 26 foot car trailer. The wiring for the camper is not conected to the new trailer. Therefor the battery is not being charged while in tow or conected to my vehicle. My question is though, when the camper is plugged into my house or a campground with powere everything works fine. But when I run the camper off of the battery, everything works but the outlets do not. The lights and water pump work great but I can not get any of the outlets inside or out to work. I checked the three fuses and the the two breakers in my power box and they are fine. Also I could not reset my GFCI breaker outlet. I replaced the GFCI but still can't reset it. Also there is no power going to the GFCI when running on battery. Any ideas on how to fix this or what my next step is.