[C320-list] Frig AC vs DC

[Jane & Ken]

Paul,  You indicated you have the charger set on bulk---I believe the best setting for the charger is float--that allows the batteries to keep a "perfect" charge.
   In a former life (employed-before retirement) we had several thousand dollar battery banks used as back-up power if normal power died---we checked the float voltage every week and these batteries were 20 years old---my 320 batteries are about 8 years old (my second set) and still OK.  I hated to say that.
Ken, OBUOY #219

--- On Mon, 5/17/10, Paul Rickman <ilove2sail at verizon.net> wrote:


From: Paul Rickman <ilove2sail at verizon.net>
Subject: Re: [C320-list] Frig AC vs DC
To: C320-List at Catalina320.com
Date: Monday, May 17, 2010, 4:48 PM


Hi Ken,

I was thinking just like you. Any constant 12V supply should work.
But -- I haven't had real good luck with batteries on this boat.. I replaced the first set after seven years (two years after I bought the boat). The second set got fried from a faulty charger (OEM), the
third set just died and so, I am now on my fourth set since 2004. I'm just a little bit tired of this.




 




________________________________
From: Jane & Ken <obuoy4848 at sbcglobal.net>
To: C320-List at Catalina320.com
Sent: Mon, May 17, 2010 5:05:28 PM
Subject: Re: [C320-list] Frig AC vs DC

Paul,  What are you asking when you ask "can be converted to run from down converted AC?"  The frig is 12 V--Any CONSTANT 12 V supply will run the unit and allow the electronic module to do its job---the frig will (should) work, however the electronic module must have a constant 12 V supply in order to function properly----At least that is correct for the older A_B units.   A 120 a-c to 12 V d-c transformer will not produce a constant 12 V supply---unless you use a VERY expensive transformer-----therefore the electronic control module will "sense" a non-constant 12 V supply and simply not allow the compressor to cycle.
   If you are plugged into 120 a-c at the dock---why worry about the batteries running the refig?  I have done this for 15+ years. 
Ken, OBUOY #219

--- On Mon, 5/17/10, Pat Ireland <cherie320 at gmail.com> wrote:


From: Pat Ireland <cherie320 at gmail.com>
Subject: Re: [C320-list] Frig AC vs DC
To: C320-List at catalina320.com
Date: Monday, May 17, 2010, 2:03 PM


There is a thread on the Cat 34 site that discusses this concept in
a battery charging evaluation.
http://c34.org/bbs/index.php?PHPSESSID=048f677bfbd0a939c49309f07a530d98&topic=4352.0

Pat, 801
On Mon, May 17, 2010 at 10:26 AM, Paul Rickman <ilove2sail at verizon.net>wrote:

> All my manuals are on the boat, 40 miles away.
>
> Does anyone know if the Frig can be converted to run from down converted
> AC? Seems to me
> we should be able to do that some how. I'd like to stop using the batteries
> at the dock just to
> keep the frig going.
>
> Thanks
>
> Paul
> Affinity 657
> Bay Bridge Marina
> Chesapeake Bay, Md
>