I'm looking for some input please and thanks, for a new charger.....I have two group 27 deep cycles and a crank battery. I don't use much electronics, only one graph (on crank battery). I don't tournament fish and I use the trolling motor maybe once or twice a week for only a few hours (I drift fish a lot). After doing some research, I think if I was doing more trolling/electronics, I would get a MinnKota 330PC (10 amps per bank). But my question is, for less $$ would a MinnKota 318PC (6 amps per bank) do the job for me? Or what about Promariner Prosport HD20 PLUS (GEN 4, 20 amps total). Apparently, with this one, when one battery is charged it transfers available amps to the other battery(s) needing it.