Trying to lighten up my 618 to improve holeshot. Planning on moving to two lithium batteries for the trolling motor which will save me 61 lbs and after finding out that my dual pro charger weighs 22.5lb, I'm thinking it would be great if I could pull that too. However any portable charger I've seen is only one bank. Would be nice if they had a portable charger that you could quickly plug into multiple banks. Anybody know of a charger that can do that or have modified an onboard that you can pull in and out of the boat quickly for charging?