I don't think I've seen a schematic on how to wire two batteries such that one is switched to use for an electric trolling motor and the other connected to the outboard to recharge and provide for the starter and auxilary power to the other electrical demands,(bilge pump, lights, stereo, etc). I would like to be able to switch between the two batteries to assure the trolling motor isolation and be able to put either one on a recharge cycle as well as alternate which one is on demand for either function.