We’re on the road. First night boondocked without issue. Second night parked at an Ohio Tpk rest stop (very civilized) and plugged in. No problems - except I didn’t realize till next AM that the socket was dead (know to check every time now). When we made a pit stop for gas at a place where the restrooms were beyond skuzzy we decided to use our own facilities. Went into camper to find electrical system on the fritz. No power to lights, Maxxfans which had been running or even CO detector. Turned everything off and did a battery reading 2 amps. Checked 12 amp fuses which all seemed good - but power came back over 3 amps. Detector came back, was able to power pump long enough to flush toilet. When I went to start it took 4 or 5 tried to start it and have all the dashboard warning lights clear. When we got to the campground battery was still at 6 amps. Plugged in for the night and had no issues, battery back to 12 amps this morning and truck started fine. So, what’s going on - short, new converter or ???