Hi capt D
I don't have much advise on this one but I think you need TWO (2) Battery Switches as well as a Battery ISOLATOR or you could boil a battery because most OB's don't have a proper regulator. [img]/images/graemlins/shocked.gif[/img]
Try the West Advisor [img]/images/graemlins/wink.gif[/img]
http://www.westmarine.com/webapp/wcs...or=464-465.htm