On Sunday, I went to get my trailer out of winter storage (in a spring snow storm, I might add) and I put one of the batteries back in that I had removed for the winter. I was taking it to the local dealer for some repair work yesterday.
Now I admit that I'm not the brightest star when it comes to anything electrical. (I knew, at least, to remove the batteries during the winter.) Anyway, I installed one battery to what I thought was the positive cable to the positive battery terminal (the red wire), and put the other wire on the negative terminal, together with the wire for the electric jack, which I needed to raise to hitch my truck.
Anyway, the jack wouldn't operate, so I assumed that I must be mistaken about how to hook up the battery, so I reversed the cables and everything worked fine. I later went in the trailer and the lights worked as well.
Today, the dealer's service manager called me and informed me the battery was hooked up backwards and there were some blown fuses -- and who knows what else I may have destroyed....?
Anyway, I thought I was right the first time and maybe I should have had more confidence it myself when I first put the battery in.
Now, my questions: Is it normal for that the electric jack and lights in the trailer to work when the battery is hooked up backwards? (I wonder what all problems this might cause?)