03-15-2021, 01:00 PM
(This post was last modified: 03-15-2021, 01:02 PM by RockyRaab2.)
I agree with dubob that having a separate battery for the ffinder is unnecessary - both for need and excess weight. The only time you might need to top off the cranking battery is during winter storage, and a cheap trickle charger would do that. For the trolling motor battery, a one-bank smart charger of 10 or 15 amps ought to be plenty.