On Wed, 26 Dec 2007 21:08:22 -0500, HK wrote:

You do it your way, I'll do it mine. It costs only a couple of pennies
to do it my way.

Cost is not the issue, difficulty is. Unless you take your batteries
off the boat (also overkill in my experience), then you have to go out
to the boatyard, run extension cords, get under the winter cover, etc.
When we lived north I eventually came to the conclusion that none of
that was really necessary. This was somewhat influenced by ownership
of a boat that had 160 pound 8D batteries. :-)