Okay, this is obviously a newb question, but here goes:
My S2 has a place for two batteries and a switch with positions for 1, 2, 1 and 2 , and off. Should I be using one of the batteries for the "house" battery (lights, etc) and the other just for starting the engine? Should the batteries be the same type and size? How do others have their batteries set up and use this switch?
Thanks. I have a lot to learn.