i have 2 batterys, one in front and one in back. where i have them they are not easily accessible and i want to run seperate +'s and -'s up through the deck with posts so all i have to do is plug into them to charge the batterys without having to get to them. they are in spots wich have plenty of open space around them. good idea or bad? and why? thanks.....(i think it a good one, but im no electrician)