On my trawler my present house battery bank consists of two 8Ds, my
starting battery is a 4D.

The 8Ds are ready for replacement. I'd like to go with golf cart
batteries.

Costco has them for $62 each. No real information on the card in the
store. West marine has them for $127. There is not enough information in
either place to compare them to each other.

Several sites on the Internet have Trojan golf cart batteries, and there
are many choices, for prices that look like $200 and up.

I have a lot to learn about batteries. I don't have enough information,
yet, to compare what I'm seeing.

Then there's the issue of a new "Smart" charger. My 20 year old charger
probably needs to be upgraded with the batteries.

Your input would be appreciated.

Jim

"Jim" wrote in message
ink.net...
On my trawler my present house battery bank consists of two 8Ds, my
starting battery is a 4D.

The 8Ds are ready for replacement.

Brand new 8D's are about $145 at http://www.lesschwab.com and will 'run
circles' around most batteries in that price range.

(I'm not sure where in cyberspace you're located)

Jim wrote:
On my trawler my present house battery bank consists of two 8Ds, my
starting battery is a 4D.

The 8Ds are ready for replacement. I'd like to go with golf cart
batteries.

Trojan T-105 are available from several sources. (6VDC, 200+AH)

My guess is $60 max, probably closer to $50 in quantity.

Lew

A day of learning:

Two 6 volt, 220 amp batteries joined to make one 12 volt battery has 220
amps. Even though the guy at the battery store told me otherwise.

My old 8Ds had a rating of 215 amps. 220/215, not much gain there.

The cost of the 6 volt batteries is about 1/2 the cost of an 8D. A
little more or a little less. $65 + $65 = $130. 8D, $140. Not much
gain there.

What this means is that there is little gained, initially, by going with
the golf cart batteries. Since I have to buy battery boxes, it will
cost me more.

The golf cart batteries SHOULD be good for many more deep discharges
than the 8D. The golf cart batteries are easier to move around, and
have a smaller foot print. The battery boxes have more options for
dimensions.

I'm buying the golf cart batteries from a battery store. A few dollars
higher than Costco. Five dollars each battery. I get the cables free
from the battery store, so it's actually cheaper than Costco.

I'm upgrading my charger to a Xantrex "True Charge" 40 amp, 3 stage
charger. The "Equalizer" function is an important to maintain the
batteries.

The old battery boiler charger is going in the trash.