rexsteiner
Active Member
having an issue trying to wire dual batteries on my challenger 180. useing a deep cycle and a starting battery, i want to be able to use my starting battery strickly for the starter and the deep cycle strickly for accessories. but i dont want to have to keep changing the switch everytime i turn the boat off and want to listen to the radio. i drew up a schematic on how i think i should be able to wire it so that it never draws off both batteries at the same time and so that if my starting battery (for some odd reason) goes dead i can turn that battery off at its disconnect, turn the other to both and start from my deep cycle without haveing my deepcycle trying to recharge my start battery. one problem im having is finding which wire is the charging wire from the mag? there is currently 5 wires on the factory disconnect. 1 big red wire for starter, 1 big red to battery, 1 black wire to bilge, and 2 smaller red wires that i have no idea. assuming its one of those but im not sure which one. thanks in advance for any help!