It looks like I'll need new house batteries soon. This set of 6
Trojan T-105 has been function for exactly 5 years now. About 4 years
away from the docks. Before we had 2 Surette 8D's - cruised 5 years
and lasted 7 years before I replaced them early to go cruising again.

So - what's good now? Whatever it is has to fit in the 2 x 8D or 6 x
T-105 footprint. Too hard to change that.
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On Fri, 13 Jun 2008 19:30:07 -0700, wrote:

It looks like I'll need new house batteries soon. This set of 6
Trojan T-105 has been function for exactly 5 years now. About 4 years
away from the docks. Before we had 2 Surette 8D's - cruised 5 years
and lasted 7 years before I replaced them early to go cruising again.

So - what's good now? Whatever it is has to fit in the 2 x 8D or 6 x
T-105 footprint. Too hard to change that.
-----------------

6 L16s will fit in the same footprint but are taller. They would give
you a substantial increase in amp-hours.

Rolls makes a modular 8D in 3 sections which comes with a great
warranty and is much easier to handle.

On Jun 13, 4:30 pm, wrote:
It looks like I'll need new house batteries soon. ...
Whatever it is has to fit in the 2 x 8D or 6 x
T-105 footprint. Too hard to change that.

I've been very happy with my Lifeline AGMs (2x8D). I've got a couple
of buddies who installed Full River AGMs and they like them too and
they cost a lot less. There are some other interesting developments
out there including the Thin Plate Pure Lead AGMs. But, none of those
will be in the running if you're looking to get the best AH/$$. For
that I think your T-105s are about as good as it gets.

-- Tom.

wrote:
It looks like I'll need new house batteries soon. This set of 6
Trojan T-105 has been function for exactly 5 years now. About 4 years
away from the docks. Before we had 2 Surette 8D's - cruised 5 years
and lasted 7 years before I replaced them early to go cruising again.

So - what's good now? Whatever it is has to fit in the 2 x 8D or 6 x
T-105 footprint. Too hard to change that.
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-----------------

Your question is difficult to answer without without knowledge on how
you will charge the batteries. I think one of the best articles I know
of on batteries in general is
http://www.sterling-power.com/support-faq-2.htm.
I certainly wouldn't touch AGM for any kind of serious cycling use.