promariner is the one I have

they make a model for bassproshop called XPS don't get that one. mine only lasted 8 months.

cool thing is I sent it back (2 year warrenty) they sent me the better model in return (prosport, about $60 price difference).

I think the new ones last better but don't know for sure only had this one a couple months

it's always best to have your batteries on the maintance charge especially durring the offseason. the batteries will last longer if they are constantly maintained. so yes go w/ the 3 bank