So I bought an 89 1 ton Chevy Georgie boy with a 7.4L. It started and drove fine 2 hours. Started it regularly the first year or two, even drove it down the block but then it sat. Batteries went bad. It seemed to have new electrical work there too. So I get new batteries and go to put them in how I saw them and took pics too and it’s seems to be setup quite odd. The middle battery posts were melted too. Three batteries. Left to right goes pos neg neg pos pos neg. first. Pos goes to the second. But the two neg aren’t in parallel. That first to second then has a Batt line to a bolt (ground) on the frame with a bunch of newer wires to it. Ok I could see why that melted maybe? Neg was melted too on the middle battery which goes up to a solenoid. Of which there are three. The first battery negative goes to unknown at the back of the Rv somewhere I haven’t traded yet following the frame. The last battery on the right, pos goes to a solenoid, neg to top of motor I haven’t traced yet (cover inaccessible at the moment). This seems so odd to me. Anyone have any input? I don’t want to hook them up that way again if it caused the middle to melt. And that pos to a frame is wild. It probably 10 wires off it also. Including a drawing (b means batt label on solenoid, L means load). 24f to 24 and a 78 on the end. Thanks for any input, I’m not versed in Rv set up.