[RE-wrenches] Trojan Batteries
William Dorsett
wmdorsett at sbcglobal.net
Thu Aug 13 08:46:00 PDT 2015
Michael, does HP or SolarPro have a format for compiling the type of data that Jarmo is asking? …a Doodles.com survey type of form that could be accessed through the wrenches archives or similar? I’ve thought for a long time that different comparisons over time for: i.e. customer service, module or inverter failure rates or changes in tech support would be helpful to the whole renewable energy community.
Bill Dorsett
Manhattan, KS
From: RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Jarmo.Venalainen at schneider-electric.com
Sent: Thursday, August 13, 2015 9:19 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] Trojan Batteries
Hi:
It occurred to me that with all the experience on the Wrenches community, we have a unique opportunity to get perspective on one aspect of battery bank natural aging and failure.
Which cells typically fail first,
A. The cells on the end of the strings
B. The cells in the middle of the strings
C. Random cells in any position.
If there is a pattern to failures among a large group of systems, then that will support cell rotation. If not, then not.
JARMO
_____________________________________________________________________________________
Jarmo Venalainen | Schneider Electric | Xantrex Brand | CANADA | Sales Application Engineer
Phone: +604-422-2528 | Tech Support: 800-670-0707 | Mobile: +604-505-0291
Email: <mailto:jarmo.venalainen at schneider-electric.com> jarmo.venalainen at schneider-electric.com | Site: <http://www.xantrex.com/> www.Xantrex.com | Address: 3700 Gilmore Way, Burnaby, BC V5G4M1
<http://www.xantrexrebate.com/>
<http://www.xantrex.com/>
<https://www.facebook.com/Xantrex>
<https://twitter.com/Xantrex>
<https://twitter.com/Xantrex>
*** Please consider the environment before printing this e-mail
From:
Drake <drake.chamberlin at redwoodalliance.org>
To:
RE-wrenches <re-wrenches at lists.re-wrenches.org>,
Date:
08/13/2015 07:03 AM
Subject:
Re: [RE-wrenches] Trojan Batteries
Sent by:
"RE-wrenches" <re-wrenches-bounces at lists.re-wrenches.org>
_____
Most failures have been in one string of 4 or 8 batteries. One failure was in two strings of 4.
At 10:26 PM 8/12/2015, you wrote:
What size are the banks are are they series/paralleled across the terminals? That can cause one or more cells to fail, generally starting on the negative terminal. The set that failed on me was series/parallel across the terminals, old school, and the cell closest to the main negative overheated and shorted out, killing that string. It’s why I went to buss bars.
Tom
From: Drake <mailto:drake.chamberlin at redwoodalliance.org>
Sent: Wednesday, August 12, 2015 12:03 PM
To: re-wrenches at lists.re-wrenches.org
Subject: [RE-wrenches] Trojan Batteries
Hello Wrenches,
I have had a number of customers with Trojan L-16s have problems lately. In some cases, I know that the batteries weren't very well cared for, but in no case were the batteries totally discharged and let get cold or sit for a long time. It doesn't seem that the batteries should have died after a couple of years. I could see diminished output and a reduced life.
One customer who supposedly knows someone with inside information claims that Trojan started cutting corners a few years ago to be more competitive on price.
Has anyone else seen more problems with Trojan Batteries, or heard that the company is cutting corners?
Thanks,
Drake
Athens Electric LLC
OH License 44810
CO License 3773
NABCEP Certified Solar PV
740-448-7328
http://athens-electric.com/
_____
_______________________________________________
List sponsored by Redwood Alliance
List Address: RE-wrenches at lists.re-wrenches.org
Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html
List rules & etiquette:
www.re-wrenches.org/etiquette.htm
Check out or update participant bios:
www.members.re-wrenches.org <http://www.members.re-wrenches.org/>
_______________________________________________
List sponsored by Redwood Alliance
List Address: RE-wrenches at lists.re-wrenches.org
Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html
List rules & etiquette:
www.re-wrenches.org/etiquette.htm
Check out or update participant bios:
www.members.re-wrenches.org <http://www.members.re-wrenches.org/>
______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
_____________________________________________________________________________________________________________________
List sponsored by Redwood Alliance
List Address: RE-wrenches at lists.re-wrenches.org
Change listserver email address & settings:
<http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
List-Archive: <http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html
List rules & etiquette:
www.re-wrenches.org/etiquette.htm
Check out or update participant bios:
www.members.re-wrenches.org
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20150813/7465db5d/attachment-0002.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image002.png
Type: image/png
Size: 141 bytes
Desc: not available
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20150813/7465db5d/attachment-0004.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image003.gif
Type: image/gif
Size: 4274 bytes
Desc: not available
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20150813/7465db5d/attachment-0016.gif>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image004.gif
Type: image/gif
Size: 1869 bytes
Desc: not available
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20150813/7465db5d/attachment-0017.gif>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image005.gif
Type: image/gif
Size: 1897 bytes
Desc: not available
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20150813/7465db5d/attachment-0018.gif>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image006.gif
Type: image/gif
Size: 2041 bytes
Desc: not available
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20150813/7465db5d/attachment-0019.gif>
More information about the RE-wrenches
mailing list