finicking things; those AGM's and they cost more so I am not inclined to go
that way

Dwight Veinot
C&C 35 MKII, *Alianna*
Head of St. Margaret's Bay, NS
d.ve...@bellaliant.net


On Fri, Feb 27, 2015 at 12:33 PM, Bill Bina - gmail via CnC-List <
cnc-list@cnc-list.com> wrote:

>  I have two group 27 AGM's on my boat. One is the house, and one is for
> starting. AGM's have lower internal resistance than flooded batteries,
> which mean they accept a charge more easily, and they also can provide the
> extra current for starting without breaking a sweat. They have thin plates,
> but unlike a flooded battery, they are completely supported by the glass
> mat between them. That makes them immune to the vibration that can kill
> flooded batteries including deep cycle versions. They are also immune to
> the instant onset of sulfation when dropping water levels expose the plates
> in flooded batteries to air. I am on a mooring and the batteries are always
> charged to 100% with just the use of a 20 watt solar panel and a Genasun
> MPPT controller. My only other charging source is the alternator in my
> Yamaha outboard. The same setup with flooded batteries had trouble reaching
> full charge. I do not find charging them at all tricky. They have different
> needs than other types, but it really is not at all complicated to provide
> what pleases them.
>
> Bill Bina
>
>
>
> On 2/27/2015 11:00 AM, Marek Dziedzic via CnC-List wrote:
>
>  AGMs on a mooring (or dock without shore power) without solar (or some
> other way of topping up the batteries) will, quite likely, kill the
> batteries very quickly (I managed to murder one in a year).
>
> Marek
>
>  *From:* Joel Aronson via CnC-List <cnc-list@cnc-list.com>
> *Sent:* Friday, February 27, 2015 10:31 AM
> *To:* Joe Della Barba <j...@dellabarba.com> ; cnc-list@cnc-list.com
> *Subject:* Re: Stus-List Batteries -- Flooded, Sealed or AGM?
>
>  If you do use AGMs, you need to keep them charged.  A mooring without a
> solar panel is not going to go well.
>
> Joel
>
> On Friday, February 27, 2015, Joe Della Barba via CnC-List <
> cnc-list@cnc-list.com> wrote:
>
>>
>>
>> As I said before, I am not an AGM fan. If you do decide to use them, Sams
>> Club has group 31 deep cycle AGMs with the Energizer brand label. They are
>> Deka batteries, exact same as West Marine sells, for about 50% of the
>> price. Think they charge around $160 for them. The Sears Diehard Platinum
>> grp 31 AGM is a relabeled Odyssey thin plate AGM for about half the price.
>>
>>
>>
>>
>>
>> Joe Della Barba
>>
>> javascript:_e(%7B%7D,'cvml','j...@dellabarba.com');
>>
>
>
> --
> Joel
> 301 541 8551
>
>  ------------------------------
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