Last yr I purchased a 2002 Mariner 350 that has 4 batteries in it. When the boat arrived and looking in the engine room a worker at the dry dock noticed the batteries are all linked together and mentioned he had never seen this. I have been unable to separate the batteries using the aft cabin battery switch ( 1, both, 2 ) therefore my batteries are going dead while out for 2-3 days. They are wired in parallel series and I would like to hook them up correctly, individually.

If anyone can send me a picture and description of how their batteries are hooked up or a link I could go to for this info I would greatly appreciate it. And I'm assuming ea battery would then need to be connected to the on board charger? As of now there is just one wire connected to the batteries from the charger.

Thanks, Jerry