Trojan battery has the following deep cycle batteries suitable for house
batteries
The J250G (220 Ahr @ 20 hr rate) $100.95 ea. plus any taxes
The J305G (285 Ahr @ 20 hr rate) $130.95 ea. plus any taxes
The J305HC (335 Ahr @ 20 hr rate) $169.95 ea. plus any taxes
http://www.trojanbattery.com/productspecsguide.pdf
The West Marine 6V battery is a Trojan T-105 (225 Ahr @ 20 hr rate).
Catalog price is 109.99 plus tax. West Marine catalog conservatively
rates battery @ 215 Ahrs
Kelton
s/v Isle Escape



Schoonertrash wrote:
The old boat had a couple of 4D's at 220 Amp each. The new boat is
currently using fairly standard 12 volt RV size batteries at 110 ratings
each. I'm thinking of going to the 6 volt variety as I have to go back up
to or near 400 Amp hours of storage. Which size, which voltage, and why?
If six volt are the fairly inexpensive one's from Costco (golf cart
batteries)useful or should I just spend the money at West Marine?

Tanks
Michael