Originally Posted by boowho
Getting more confused...... I obviously have the high amp wires (the green ones in my diagram). I have the temperature sensor. Finally I have a very light gauge wire (actually two wires bundled together) that is black. This is all the wires I have. I don't know what this "light gauge" black wire is for, but I'm going to put it and the temp sensor on post 2 of my diagram.
in my rig, the lighter gauge wires are for the 12v house side.(some appliance somewhere i'm not sure, could be slide motors, fridge propane controller, fans, i'm not sure as nothing is labeled).
theoretically, the best set up is to treat the bank as it was only one battery with 2 posts only. you ignore all the interconnecting posts and use only the 2 main posts: negative of #2 and positive of the battery that has #3 for everything.
you do have the challenge of making everything fit on the posts as they are not tall enough to hold all the lugs. FR should have included post extensions and longer wires.
so in simplest terms, the best wiring setup by the book, is to use only the negative #2 post for all black cables. all red positive cables go to the positive post of where you have #3 negative labeled). that means to move your green lines in your diagram but you will need to get lug post extensions to make all the lugs fit (or something similar).