deep cycle batteries
Ok so basically right now my boat has three optima blue tops, 2 starting and 1 trolling. one of the starting batts seems to have crapped out and since the troller is a dual purpose (that one came with the boat) I figured I would switch it to cranking duties and get a designated TRUE deep cycle for trolling. space is not an issue, I want the power to be there all the time (minimum group 27, more likely 29 or even 31). What are yall using with good success??