<font face="arial" size="4">When I do a system, the customer is hiring me as the expert. If they want me to do something that won't work well, my reputation is on the line, and so they need to hire someone else.<br><br>Todd<br><br>On Monday, October 4, 2010 2:46pm, holtek@sbcglobal.net said:<br><br>
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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"> </font></div><font face="Calibri"></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">www.holteksolar.com</a><br></div>
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<div style="font: 10pt arial;">----- Original Message ----- </div>
<div style="background: none repeat scroll 0% 0% rgb(228, 228, 228); font: 10pt arial;"><b>From:</b>
<a title="toddcory@finestplanet.com" href="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="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 face="arial" size="4">"<span class="187435412-04102010"><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="mailto:ntrei@1scom.net">ntrei@1scom.net</a>> said:<br><br>
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<div><span class="187435412-04102010"><font face="Arial"></font></span> </div>
<div><span class="187435412-04102010"><font face="Arial">Todd</font></span></div>
<div><span class="187435412-04102010"><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="187435412-04102010"><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="187435412-04102010"><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="187435412-04102010"><font face="Arial">Jim</font></span></div>
<div><span class="187435412-04102010"></span><font face="Tahoma" size="2"><span class="187435412-04102010"><font face="Arial" size="3"></font></span></font> </div>
<div><font face="Tahoma" size="2"><span class="187435412-04102010"></span></font> </div>
<div><font face="Tahoma" size="2"><span class="187435412-04102010"></span></font> </div>
<div><font face="Tahoma" size="2"><span class="187435412-04102010"> </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 face="Tahoma" size="2"></font>
<blockquote><font face="arial" size="4">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>
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<div><font face="Arial"><span class="937293103-04102010">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="937293103-04102010">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="937293103-04102010">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="937293103-04102010">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="937293103-04102010">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="937293103-04102010">Thanks as
always</span></font></div>
<div><font face="Arial"><span class="937293103-04102010"></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="mailto:ntrei@1scom.net">ntrei@1scom.net</a> </div>
<div>817.917.0527</div>
<div><a href="http://www.ntrei.com/">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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