Josh,
I’m leaning towards 4 to 6 (depending on the space available) Trojan
T-105s, but am concerned about the maintenance, especially since I’m kinda cut
off from the boat all winter long. Alternatively, I was looking at these AGMs:
http://www.atbatt.com/amstron-gc2-6v-agm-deep-cycle-battery.asp?utm_content=Amstron-AP-GC2&utm_term=AP-GC2&utm_category=Sealed-Lead-Acid&gclid=CLy95KfH_cMCFXBp7Aod2WkA2g
<http://www.atbatt.com/amstron-gc2-6v-agm-deep-cycle-battery.asp?utm_content=Amstron-AP-GC2&utm_term=AP-GC2&utm_category=Sealed-Lead-Acid&gclid=CLy95KfH_cMCFXBp7Aod2WkA2g>,
but won’t bother if AGMs are only going to last a few years.
My charging system is the alternator, since the Enterprise lives on a
mooring during the season (yes — we call that "standard orbit"). I only hook up
to shore power a few times a year when cruising.
The new system will connect the alternator to the house bank and use a
Blue Seas ACR
(https://www.bluesea.com/products/7610/SI-ACR_Automatic_Charging_Relay_-_12_24V_DC_120A
<https://www.bluesea.com/products/7610/SI-ACR_Automatic_Charging_Relay_-_12_24V_DC_120A>)
to also charge the starting battery. That means I'll have a New-In-Box Echo
Charger to sell this Spring.
All the best,
Edd
Edd M. Schillay
Starship Enterprise
C&C 37+ | Sail No: NCC-1701-B
City Island, NY
Starship Enterprise's Captain's Log <http://enterpriseb.blogspot.com/>
> On Feb 25, 2015, at 11:53 AM, Josh Muckley <muckl...@gmail.com> wrote:
>
> I was at a point of extremes when I bought 5 AutoZone marine/deep cycle for a
> total of about $600 and 500Ahrs (~250Ahrs usable without damage). They are
> the standard maintenance free auto style which can be but are not intended to
> be watered. For me they were relatively cheap, readily available, easy to
> claim warranty, light enough to move/install/uninstall. They are also the
> easiest to charge and discharge since it is such a long standing standard.
>
> There are certainly advantages to other technologies and disadvantages to wet
> cells but for now this solution has met my needs very comfortably. T-105
> golf cart batteries would really be my only other concideration but
> availability, movability, and warranty claimability are hold backs.
>
> You also have to consider the charging system when choosing batteries. I
> have a 100amp balmer alternator with external charge controller and a
> ProMariner P Nautic 60-12 charger/maintainer. There are disadvantages to
> staying on shore power 24/7 but it is working for me right now. Maybe I'll
> change that practice in the future.
>
> Josh Muckley
> S/V Sea Hawk
> 1989 C&C 37+
> Solomons, MD
>
> On Feb 25, 2015 11:17 AM, "Edd Schillay via CnC-List" <cnc-list@cnc-list.com
> <mailto:cnc-list@cnc-list.com>> wrote:
> Listers,
>
> As you know, I’m redoing the electrical systems on the Enterprise
> (thanks to all for diagrams and advice).
>
> So now comes the question of what type of battery to use in my house
> bank — Flooded, Sealed or AGM? What do you have on your C&C and why do you
> prefer it?
>
> And, if you have flooded, how often do you top them off with distilled
> water?
>
> The countdown has begun!
> http://enterpriseb.blogspot.com/2015/02/launch-of-enterprise-countdown.html
> <http://enterpriseb.blogspot.com/2015/02/launch-of-enterprise-countdown.html>
>
>
> All the best,
>
> Edd
>
>
> Edd M. Schillay
> Starship Enterprise
> C&C 37+ | Sail No: NCC-1701-B
> City Island, NY
> Starship Enterprise's Captain's Log <http://enterpriseb.blogspot.com/>
>
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