Posted by gchuba on 05/21/15 - 7:22 AM
#2
Be careful in the "all" position. One dead battery could drain the spare. Should always go in one position or the other and NEVER switch from one battery to the other with a running boat. They have new dual battery switches that allow for both batteries to charge at the same time. With the Perko switch, the only battery charging is the one that is designated by the switch.
Garris