trojan battery cycle [RE-wrenches]

Jay Peltz, Peltz Power jay at asis.com
Wed Feb 13 08:57:31 PST 2008


<x-flowed>

Hi Jamie,

I have heard other battery manufactures use a 2% current rate to end  
absorb charge.
( 400 amp hr battery X 2% = 8 amps)

What do you think about this vs a set time for absorb?

thanks,

jay

peltz Power
On Feb 13, 2008, at 8:51 AM, James Surrette wrote:

>
> Hello William,
>
> A quick note from the battery supplier side.
>
> We've noticed, as battery banks capacity has increased, an increase  
> in deficit cycling and an increase in the need of "corrective"  
> equalizations.  However, a quick calculation that we've been  
> providing, which has shown good success;
>
> i) At bulk voltage - assume battery at 80% SOC
> ii) Take 20hr rate capacity and determine AH of remaining 20% deficit.
> iii) Divide AH deficit by the "average" charge current during the  
> Absorb cycle - not an exact science I know.
> iv) Provides a more accurate required absorb time - and often  
> surprised the client when 4+ hours are required.
>
> EQ duration can be calculated in the same fashion.
>
> Regards,
>
> Jamie
>
>
>>>>


- - - -
Hosted by Home Power magazine

To send a message: RE-wrenches at topica.com

Archive of previous messages: http://lists.topica.com/lists/RE-wrenches/read

List rules & how to change your email address: www.mrsharkey.com/wrenches/etiquette.php

Check out participant bios: www.mrsharkey.com/wrenches/

Moderator: michael.welch at homepower.com
--^----------------------------------------------------------------
This email was sent to: michael.welch at re-wrenches.org

EASY UNSUBSCRIBE click here: http://topica.com/u/?bz8Qcs.bz9JC9.bWljaGFl
Or send an email to: RE-wrenches-unsubscribe at topica.com

For Topica's complete suite of email marketing solutions visit:
http://www.topica.com/?p=TEXFOOTER
--^----------------------------------------------------------------

</x-flowed>



More information about the RE-wrenches mailing list