Originally Posted by campingva
Did you hook up the battery properly? Trace both cables to see where they go. One should go tot he trailer frame and that is your ground side. The other should go back to a distribution point and that is your positive side. Do not trust color codes especially on a used trailer.
I know I need a new battery, but in trying to take some voltage measurements to try to understand how well the converter was functioning I was confused with what I saw at the battery. It seems to conflict with what is written above...and particularly that it was written not to trust colour codes especially on a used trailer (which mine is)!
If it matters, I have a 2007 Jayco 1207. The wire attached to the frame is white and has been attached to the positive side of the battery. The other wire is red coming from under the trailer and I presume is attached to the converter. There is a 30amp fuse before that red wire gets connected to the negative side of the battery.
Does that sound reversed? I'm going to get a new battery and don't want to hook it up wrong!