Sorry, haven't had my coffee. We're in a campground. Late yesterday we had the AC running for about 2 hours and I started to smell an electrical burning smell while we were sitting outside. I went in and shut the AC of and started to look around. My wife said she smelled it more by the table. I looked down and saw my volt meter at 0 so I ran outside and shut the breakers off. The cable was hot and then we saw smoke coming from the battery box. The female end that plugs into the camper melted and the receptical and wires in the camper burned. Batteries are good and all 12V works. Switched the water heater over to gas and once we aired out the camper we were ok. My plan is to get a battery charger and keep the batteries up so we can keep camping through Monday.