Jack do you have an Ah meter, or battery monitor? 

That sounds like well over 1000$ investment in batteries.   You can 
accidentally kill any battery bank in a short span if you don’t know what’s 
coming and what’s coming out.  You could have had a leak or a charging source 
malfunction.  Battery monitors, the ones that show accumulated Ah are essential 
in knowing what you’re are doing to your batteries.  

 

 

Petar Horvatic

Sundowner

76 C&C 38MkII

Newport, RI

 

 

 

 

 

From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Jack 
Fitzgerald via CnC-List
Sent: Wednesday, October 01, 2014 11:41 AM
To: Della Barba, Joe; C&CList
Subject: Re: Stus-List Boat Batteries

 

Same here with the AGM batteries. I installed 2 x 27 & 4 x 31 West Marine DC 
AGM and they were toast within 30 months. One of 6 would still hold a charge at 
the end. Back to gel for Honey in 2010 and no issues whatsoever and that is 
even after issues with the Ample Power alternator and it's diodes & rectifier 
bridge failure 

 

Jack Fitzgerald

HONEY
US12788

C&C 39TM 




 

 

 

On Wed, Oct 1, 2014 at 11:11 AM, Della Barba, Joe via CnC-List 
<cnc-list@cnc-list.com> wrote:

I switched back to gel. I had too many issues with AGM batteries and golf carts 
don’t fit my battery locker.

If you do want AGMs, the sweet spot is Group 31s. Truckers use them for running 
stuff while parked, so they get produced in large quantities. The cheapest 31 
is a DuraCell labeled 31 at Sams Club that is really a Deka with a new sticker 
on it. The best AGMs, IMHO, are Lifeline and Odyssey. Lifeline is very 
expensive, but Odyssey makes the Sears Diehard Platinum AGM line for less money.

Golf carts are still the cheapest if you don’t race offshore and can use wet 
cells.

 

Joe Della Barba

Coquina 

C&C 35 MK I


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