Ok, let me simplify my earlier nonsense post,st brought home my 87 bayliner 2455 subridge. <br /> I have 3 batteries in my boat, a 2 battery disconnect(1, all, 2 or off), and a dual bank 6A charger that is only hooked up to one battery. one of the batteries only has the charger hooked up to it with both the leads. <br /><br />What is the best way to hook this up? Should i run the two house batteries to the battery disconnect, charger wires to each? <br /><br />Should I just get rid of one of the batteries(they are all the same deep cycle batteries) and have 2, or can I join the two house batteries together on one charge lead and use the charger on the other lead?