Good day all, I'm. Ew and love this forum but find it difficult at times to find what I'm looking for. I own a 96' Japanese import 80series active vacation model. I'm switching over to a 12v system and am wondering what the best batteries would be for one being used for starting and the other used for running lights, heater, etc. I'm thinking of spending the cash on the battle born batteries 31series but want to ask the pros. If I'm out of line please educate me and blame it on my ignorance. Thank you in advance.