Hi I just purchased this trolling motor and need help with hooking it up I have no paper work with it. It has three wires Red, White, Black There is a 12/24 switch on the pedal, can this be run off one 12 volt battery on the 12 volt switch or do I need to buy another battery. How do I hook it up either way for 12 volt or 24 volt operation. thanks for any help. Bob