Thread: Is my Dual bank charger killing my TM batteries?????

For what's it worth; I just bought a small Atwood on-board charger. Was going to connect it to the starting battery. When connected to the battery and unplugged it will drain the battery because the circuitry inside the charger remains activated from the battery.

I am adding another dual bank to charge the cranking battery and the dedicated fishing electronic battery I am installing.....I realize I do not really need to charge the cranking battery but since I installing a charger I might as well put in a dual bank for winter charging.