Originally Posted by harryrezz
Camaraderie - I agree to a point .... that would certainly be better than two "starting" batteries ... but I'd suggest that the optimal setup where space is limited would be two "Dual Purpose" type batteries....
I'm going to respectfully disagree with you on that point. On a sailboat lacking space for a dedicated starting battery, the better arrangement would be two deep cycles. They have no problem handling the starting loads, and are much better suited to handle domestic loads for long periods between charging.
If we were talking about a motorboat, like an express cruiser or sport fish, where abundant charging takes place any time the boat is underway, I'd agree with your suggestion.