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<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>To date, I
have not heard of even one battery manufacturer that advocates EQ for sealed
batteries. Though I do stand to be corrected if there is a manufacturer that
does think this wise.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>We have
sealed in remote applications that service is not an option and a wet battery
would not survive the time span or cost of long time between visits. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Recharge
capability and load analysis are critical. Esp. if not backup generator or power
is available. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>What is the
operating temperature? We have them at 13,000 ft. el. and it gets to 0</span><span
style='font-family:"Arial","sans-serif"'>°</span><span style='font-family:"Arial","sans-serif"'>F
in the building and sometimes lower and they do well but that is due to sizing the
load at -20</span><!--[if gte msEquation 12]><m:oMath><i><span
style='font-family:"Cambria Math","serif"'><m:r>°</m:r></span></i></m:oMath><![endif]--><![if !msEquation]><span
style='font-size:12.0pt;font-family:"Times New Roman","serif";position:relative;
top:3.0pt;mso-text-raise:-3.0pt'><img width=6 height=19 id="_x0000_i1025"
src="cid:image003.png@01CA71AF.092F22E0"></span><![endif]><span
style='font-family:"Arial","sans-serif"'>F which nearly doubled the size of the
battery bank.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>What is the
manufacturers recommended Volt per cell setting? I have set up and repaired
system that the Charge controller was not able to be correctly set to the very
specific VPC requirement for that sealed battery and we had to install a CC the
met the VPC requirement.</span><span style='font-family:"Arial","sans-serif"'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>They are
great for UPS systems that the client will not remember to check them.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Life span has
varied 6 to 8 years till replacement which is usually less life than an L-16
style which is always been less than a HUP, IBE, or Concorde style battery.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>I have RE-watered
sealed batteries and given a sort of 1 time EQ to bring <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>They have
their place but I do not think that is every system. Their lower life span and higher
cost are a factor, but this is offset by forgetting to check a wet battery and
then having to replace that battery bank for forgetful clients.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#4F81BD'>Dana
Orzel<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#4F81BD'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#4F81BD'>Great
Solar Works, Inc<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#4F81BD'>www.solarwork.com<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#4F81BD'>E
- dana@solarwork.com<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#4F81BD'>V
- 970.626.5253<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#4F81BD'>F
- 970.626.4140<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#4F81BD'>C
- 970.209.4076<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#4F81BD'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#4F81BD'>I
will be the shift in how the world uses power! - Dana Orzel<o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>jay
peltz<br>
<b>Sent:</b> Sunday, November 29, 2009 7:45 PM<br>
<b>To:</b> RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] concord batteries<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p>
<p class=MsoNormal style='margin-left:.5in'>Hi Conrad,<o:p></o:p></p>
<div>
<p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'>1. Not usually a good idea to EQ
sealed small batteries. This will hasten their death.<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'>2. Best bet at this point is charge
them individually or at least parallel at 12v<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'>3. If possible put them on a long
long charge to see if they actually charge up.<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'>4. what are the charge set points,
I'll guess factory set points of 57.6v?<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'>5. if the above is correct ( too
high) with the too low of generator start, the batteries are mostly scrap at
this point,<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'>jay<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'>peltz power<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p>
<div>
<div>
<p class=MsoNormal style='margin-left:.5in'>On Nov 29, 2009, at 5:48 PM, Conrad
Geyser wrote:<o:p></o:p></p>
</div>
<p class=MsoNormal style='margin-left:.5in'><br>
<br>
<o:p></o:p></p>
<div>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:navy'>In the vein of us on grid folks
who’s heads spin when the off grid folks start talking about charge
programming and gen set start up parameters…</span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:navy'> </span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:navy'>I am servicing an orphaned 48 V
off grid system that is only 1 1/2 years old, with 40 Concorde Sun Extender
batteries, which are for the most part, shot (about half of them under 10V
after a generator EQ charge). I’m sure the batteries have been
abused at least after the point that someone lowered the generator start
voltage to 40V. We’re still doing fact finding on the charge
parameters for the PV and wind, but I’m wondering if there is anyone that
has an opinion on the Concorde batteries.</span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:navy'> </span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:navy'>And at least at this point,
I’m glad I had to study for some off grid questions on the NABCEP test,
not to mention the conversations on this list. : ></span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:navy'> </span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:navy'>Conrad</span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:navy'>Cotuit Solar</span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:navy'> </span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:navy'> </span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:navy'> </span><o:p></o:p></p>
</div>
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