[C320-list] Are 6V Batteries Superior To 12V Batteries

[Warren Updike]

I can't disagree with much that's been said.  However, I've not see the arguement on price and capacity.  I don't know why it is but I understand golf cart batteries have about 200 AH capacity.  Also, golf cart batteries can be found at Sam's Club, BJ's, and I presume CostCo for quite a bit less than equivalent 12V 4D from the likes of BoatUS.  Price of about $60 seems to ring a bell.

A number of people have replaced two 4Ds with four golf cart batteries.  Total amp hour capacity goes from about 270 to 400+ AH  for less money.  Unless there is a kickker, that sounds like a good deal.  Compare the dimensions of the golf carts vs 4Ds.  I understand they are a bit taller, but otherwise fit in the same horizontal space.

I chartered a 52' Tarten in BVI and the captain said he has 12 6V golf cart batteries on board because they are much less expensive to buy, weigh less (easier to install/remove,) and have more reserve capacity than equivalent marine deep-cycle batteries.

Warren & Pattie Updike
C320, #62, 1994, "Warr De Mar"
Frog Mortar Creek, Middle River
Chesapeake Bay