[RE-wrenches] Charging AGM Batteries

[jay peltz]

HI Peter,

I don't know of any sealed that go above the 14.4v/12v setpoints.
And most I've seen a 14.2 ish.
That said I have seen eq recommendations for industrial sealed, but  
with very controlled conditions.

above 14.4 it will start to gas just like a wet battery.

jay

peltz power
On Sep 15, 2009, at 7:32 AM, Peter Parrish wrote:

> I have been told that AGM batteries can withstand pretty aggressive  
> charging rates, with a bulk rate being ½ of C/20. For example a MK  
> 8A8D, with a C/20 of 245 A-h, would start with 122 A. If this is  
> okay, can I still use the standard 14.6 V value for switching from  
> Bulk to Absorb? What about ambient temperature effects at high  
> charge rates?
>
> We have need from time to time to charge AGMs as quickly as we can  
> safely do so, so any information on high charge rates would be  
> appreciated.
>
> - Peter
>
>
> Peter T. Parrish, Ph.D., President
> California Solar Engineering, Inc.
> 820 Cynthia Ave., Los Angeles, CA 90065
> CA Lic. 854779, NABCEP TM Cert. 031806-26
> peter.parrish at calsolareng.com
> Ph 323-258-8883, Mobile 323-839-6108, Fax 323-258-8885
>

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