I orig. had the 2 8d's in parallel as one bank and another starting
battery - so the 6 x 6v were wired in series parallel as one bank.

On Sat, 01 Nov 2003 21:34:34 GMT, "Fred Miller"
wrote:


Olly wrote in message ...
I bought 6 new real Trojan 6 V T-105's a year ago for $65 ea from a
Trojan dealer. They replaced 2 8D's in exactly the same footprint.
they're a bit higher but same footpring and got 50% more AH than the 2
8D's - better yet I can lift them without a problem. They have
threaded stud terminals which I like a lot better than the clamp
terminals. Stay away from West Marine and get the real Trojans from a
good dealer, not Costco, Sams etc. Real Trojans are date stamped on
the battery terminals with a 2 character date code month letter, year
number so you can see you're getting fresh batteries. One other point
- I really like the T-105 caps - much better than any other I've used.


On Sat, 01 Nov 2003 10:59:30 -0500, Kelton Joyner
wrote:

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

Assuming each of the 8Ds you replaced was 12 volts how did you wire 3 6 volt
batteries to replace them? Or were they originally wired in parallel in one
large 12 volt bank?

Fred
MV Miller Time