So, I think this is a obvious question but I would like to be sure im not missing anything. I want to add a auxiliary battery to my 09 silverado but after looking into the system I would really prefer not to mess with both the cost and wiring of a traditional two battery system with a isolator. I was wondering though is it un reasonable to just throw a deep cycle battery and wire what I want to it (bed lights, 12v ports in bed, maby a few others) and then basically have it as its own electrical system with nothing connected to the first battery or grounded to body? I could then just use a charger to recharge it when it died? If anyone else has any other similar system or other ideas any help would be appreciated. I've also considered just hooking everything to a low voltage disconnect but I assume I would not get much use from just that.



Thanks!

