Electrical: If you’re going to do battery work and you have more than 2 wires or more than 2 batteries. #
BEFORE YOU REMOVE ANY WIRE:
Do yourself a big favor and take a picture of the wiring AND using black and red electrical tape and a sharpie(gray works on black really well), and label the cables 1-# <- as many as you have, and write on the battery the number of each post. This way once the wires are all removed and you’re getting ready to put them all back it will make sense to you. I keep a roll of red and black electrical tape, black and gray sharpies in my RV for just that reason.