No 12 Volt power from battery, problem solved
The battery had 12.78 volts, but zero at the 12 volt fuse panel. When plugged into 110, the fuse panel had over 13 volts. I even drug the battery into the camper and ran wires from the battery to the fuse panel, and the 12 volt system worked... So I''m now sure the issue was between the battery box and the fuse panel.