[RE-wrenches] concord batteries, EQUALIZE Them!

[Tom Elliot]

Had that arrangement used a buss bar instead of paralleling the bank together through the batteries that part of it wouldn't have been a problem.  I'm still puzzled by the off-grid community's resistance to designing battery banks the way large telco banks are designed, using buss bars as parallel connections and the inverter connection point and leaving the series strings physically isolated from one another.



From: Windsun at wind-sun.com 
Sent: Tuesday, December 01, 2009 8:28 AM
To: RE-wrenches 
Subject: Re: [RE-wrenches] concord batteries, EQUALIZE Them!


You gotta wonder about why the customer bought such a battery layout, or why the installer sold that kind of configuration (which ever it was) with so many small batteries. We would never recommend going over 2 parallel banks, but sometimes the "customer knows best...".

..................................................................................................
Northern Arizona Wind & Sun - Electricity From The Sun Since 1979
Solar Discussion Forum: http://www.wind-sun.com/ForumVB/
..................................................................................................
  ----- Original Message ----- 
  From: Travis Creswell 
  To: 'RE-wrenches' 
  Sent: Tuesday, December 01, 2009 11:18 AM
  Subject: Re: [RE-wrenches] concord batteries, EQUALIZE Them!



  Then you can patch together one or two strings in effort to get the system in some sort of operational state while the owner digests that his $12,000 ($300 each x 40) battery is toast but even if you could fix it, it's just a bad band-aid and he needs to pony up another $8k-$12k for a real battery bank.

   

  Gotta go, good luck!

   

  Travis Creswell

  Ozark Energy Services

   

   




--------------------------------------------------------------------------------


_______________________________________________
List sponsored by Home Power magazine

List Address: RE-wrenches at lists.re-wrenches.org

Options & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out participant bios:
www.members.re-wrenches.org




--------------------------------------------------------------------------------



No virus found in this incoming message.
Checked by AVG - www.avg.com 
Version: 9.0.709 / Virus Database: 270.14.88/2537 - Release Date: 11/30/09 11:05:00
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20091201/0b8547cf/attachment-0003.html>