Quote:
Originally Posted by Duramaximos
I want to leave the primary battery isolated for the main motor and helm power.
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Blue sea makes a cool product called add-a-battery which is a switch and an automatic charging relay. Tracker Service at BP has them. It isolates your starting battery from your accessory battery so you never have to worry about your accessories draining your start battery. It also allows your main engine to charge your accessory battery once your main battery is full. The switch is different from most battery switches in that it has two basic settings (on and off) with an additional emergency (combine all) setting. Makes it very hard to get stranded on the water.
Tracker also has marine grade, tinned copper wire, which you should absolutely use. If you pretty please Gary, he might sell you enough to do your boat.