<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;"><DIV>I remember a few years back. a customer insisted on a particular arrangment, I said that it was a mistake, it would not work, I did it his way, it did not work, He sued saying I was the expert and I should not have done it that way. in spite of his insistance. I lost. the settlement was not to hard but I learned something. </DIV>
<DIV>Darryl<BR><BR>--- On <B>Mon, 10/4/10, holtek@sbcglobal.net <I><holtek@sbcglobal.net></I></B> wrote:<BR></DIV>
<BLOCKQUOTE style="BORDER-LEFT: rgb(16,16,255) 2px solid; PADDING-LEFT: 5px; MARGIN-LEFT: 5px"><BR>From: holtek@sbcglobal.net <holtek@sbcglobal.net><BR>Subject: Re: [RE-wrenches] Battery capacity testers<BR>To: "RE-wrenches" <re-wrenches@lists.re-wrenches.org><BR>Date: Monday, October 4, 2010, 4:46 PM<BR><BR>
<DIV id=yiv1731383763>
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<DIV><FONT face=Calibri><FONT face=Arial>Since when does the customer make these decisions?</FONT><BR></FONT></DIV>
<DIV><FONT face=Calibri>since they started writing the checks. Communicate the options, answer the questions honestly and openly, give your opinions and recommendations then let them decide what kind of system they want to own. </FONT></DIV>
<DIV><FONT face=Calibri> </DIV></FONT>
<DIV>Holt E. Kelly<BR>Holtek Fireplace & Solar Products<BR>500 Jewell Dr.<BR>Waco TX. 76712<BR>254-751-9111<BR><A href="http://www.holteksolar.com/" rel=nofollow target=_blank>www.holteksolar.com</A><BR></DIV>
<BLOCKQUOTE style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV style="FONT: 10pt arial; BACKGROUND: #e4e4e4"><B>From:</B> <A title=toddcory@finestplanet.com href="http://us.mc519.mail.yahoo.com/mc/compose?to=toddcory@finestplanet.com" rel=nofollow target=_blank ymailto="mailto:toddcory@finestplanet.com">toddcory@finestplanet.com</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=re-wrenches@lists.re-wrenches.org href="http://us.mc519.mail.yahoo.com/mc/compose?to=re-wrenches@lists.re-wrenches.org" rel=nofollow target=_blank ymailto="mailto:re-wrenches@lists.re-wrenches.org">RE-wrenches</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, October 04, 2010 3:24 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [RE-wrenches] Battery capacity testers</DIV>
<DIV><BR></DIV><FONT size=4 face=arial>"<SPAN class=yiv1731383763187435412-04102010><FONT size=+0>The battery choice was the decision of the system owner."<BR><BR>Since when does the customer make these decisions?<BR><BR>Todd<BR></FONT></SPAN><BR>On Monday, October 4, 2010 6:36am, "North Texas Renewable Energy Inc" <<A href="http://us.mc519.mail.yahoo.com/mc/compose?to=ntrei@1scom.net" rel=nofollow target=_blank ymailto="mailto:ntrei@1scom.net">ntrei@1scom.net</A>> said:<BR><BR>
<DIV><SPAN class=yiv1731383763187435412-04102010><FONT face=Arial></FONT></SPAN> </DIV>
<DIV><SPAN class=yiv1731383763187435412-04102010><FONT face=Arial>Todd</FONT></SPAN></DIV>
<DIV><SPAN class=yiv1731383763187435412-04102010><FONT face=Arial>I've heard the same arguement, as well as its inverse. The battery choice was the decision of the system owner. I know they are more sensitive to charge/discharge abuse but I see the full charge rate last week at 52.xx V, just like day 1and I trust the Trimetric and the Sunny Islands. </FONT></SPAN><SPAN class=yiv1731383763187435412-04102010><FONT face=Arial>We're taking down the entire system to upgrade & install a 400A transfer switch so the batteries will have time to stabilize for the VOC check & cleaning. </FONT></SPAN></DIV>
<DIV><SPAN class=yiv1731383763187435412-04102010><FONT face=Arial>I guess a more accurate question would be is it good enough to properly check cell VOC and not bother with the discharge capacity check? A compromise could be cap check 12V blocks of cells instead of all 24 separately. Or is the capacity checker a waste of money.</FONT></SPAN></DIV>
<DIV><SPAN class=yiv1731383763187435412-04102010><FONT face=Arial>Jim</FONT></SPAN></DIV>
<DIV><SPAN class=yiv1731383763187435412-04102010></SPAN><FONT size=2 face=Tahoma><SPAN class=yiv1731383763187435412-04102010><FONT size=3 face=Arial></FONT></SPAN></FONT> </DIV>
<DIV><FONT size=2 face=Tahoma><SPAN class=yiv1731383763187435412-04102010></SPAN></FONT> </DIV>
<DIV><FONT size=2 face=Tahoma><SPAN class=yiv1731383763187435412-04102010></SPAN></FONT> </DIV>
<DIV><FONT size=2 face=Tahoma><SPAN class=yiv1731383763187435412-04102010> </SPAN>----Original Message-----<BR><B>From:</B> re-wrenches-bounces@lists.re-wrenches.org [mailto:re-wrenches-bounces@lists.re-wrenches.org]<B>On Behalf Of </B>toddcory@finestplanet.com<BR><B>Sent:</B> Monday, October 04, 2010 2:23 AM<BR><B>To:</B> RE-wrenches<BR><B>Subject:</B> Re: [RE-wrenches] Battery capacity testers<BR><BR></FONT></DIV><FONT size=2 face=Tahoma></FONT>
<BLOCKQUOTE><FONT size=4 face=arial>I know many on this list disagree, but this sounds SO typical for sealed batteries. It is why I never use em... never! If they are 5 years old, you are probably at the limit of their life. Replace em with flooded lead calciums and your customers (and you) will be happy for 20+ years.<BR><BR>my .o2<BR><BR>Todd<BR><BR><BR><BR>On Sunday, October 3, 2010 9:28pm, "North Texas Renewable Energy Inc" <ntrei@1scom.net> said:<BR><BR>
<DIV><FONT face=Arial><SPAN class=yiv1731383763937293103-04102010>I have a customer with a set of 24 Concord PVX-6480s that have twice failed during grid outages during the night. No large loads are on the critical load panel and, since it's at night when they drop to 50% dod, I'm not sure what's up with them. </SPAN><SPAN class=yiv1731383763937293103-04102010>I plan on cleaning and retightning all the cable connections first to eliminate that possibility then checking VOC of each cell.</SPAN> </FONT></DIV>
<DIV><FONT face=Arial><SPAN class=yiv1731383763937293103-04102010>Eventually we'll install a 25 kW genset but my first task is to find out the state of the batterys. The system turns five next spring so I don't think they are near an early death. </SPAN><SPAN class=yiv1731383763937293103-04102010>The BOS is 2 Sunny Island 4248s with upgraded chipsets and the charger is set to spec though that may need to be bumped up. The only culprit I suspect is the high summer temperatures in this unconditioned equipment room. </SPAN></FONT></DIV>
<DIV><FONT face=Arial><SPAN class=yiv1731383763937293103-04102010>Finally it may be time to invest in a capacity tester. What brand is popular among those Wrenches with lots of experience in diagnosing a batterys health? The Concord DC5000 only comes in 12 & 24 V models and these are 2V cells. </SPAN></FONT></DIV>
<DIV><FONT face=Arial><SPAN class=yiv1731383763937293103-04102010>Thanks as always</SPAN></FONT></DIV>
<DIV><FONT face=Arial><SPAN class=yiv1731383763937293103-04102010></SPAN></FONT> </DIV>
<DIV>
<DIV>Jim Duncan</DIV>
<DIV>North Texas Renewable Energy</DIV>
<DIV>486 W.N. Woody Road</DIV>
<DIV>Azle Texas 76020</DIV>
<DIV>
<DIV>
<DIV>NABCEP Certified Solar PV</DIV>
<DIV>Installer No.31310-57</DIV>
<DIV>TECL 27398</DIV></DIV></DIV>
<DIV><A href="http://us.mc519.mail.yahoo.com/mc/compose?to=ntrei@1scom.net" rel=nofollow target=_blank ymailto="mailto:ntrei@1scom.net">ntrei@1scom.net</A> </DIV>
<DIV>817.917.0527</DIV>
<DIV><A href="http://www.ntrei.com/" rel=nofollow target=_blank>www.ntrei.com</A></DIV>
<DIV><FONT face=Arial></FONT> </DIV><FONT face="Times New Roman"></FONT></DIV></FONT><BR><BR><BR>Sent from Finest Planet WebMail.<BR></BLOCKQUOTE></FONT><BR><BR><BR>Sent from Finest Planet WebMail.<BR>
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