Hi,
I plan to deploy a 36V trolling motor with a 6P 1-0-2 switch, which will switch 3 batteries to work in parallel or series and has a neutral position. Trolling batteries have to be charged when the motor is running and from 220/12V charger when the boat is on the dock. I want to protect the alternator so I plan to use Orion isolated DC-DC 30A charger (the alternator is declared as 140A but I don't know what happens when idle). I don't want the DC charging system to use more than 30A to prevent alternator damage. Can anyone confirm if the following schema is ok?
