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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>All,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I’ve worked with most battery types in 23 years in the
trade. There are no easy answers here. We see the unusual T-105 battery bank
go 12 years. Conversely we have seen people blow through L-16’s in 3
years. I personally have some gigantic (Hoppecke LA’s 330lbs each cell) 2v
cells in my shop system that are 16 years old and show no signs of decline. They
are German made and brought in special to make good on a failed fibered NICAD
battery we sold for Hoppecke in the early 90’s (that was not a pleasant
experience, I would not do it again, even for a free 20 year+ battery bank as a
make-up gift). Also, I wouldn’t want to actually buy these large 2v cells.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>If you can trust the life cycle, depth of discharge, charts from
the manufacturer and calculate a simple “best value” for the dollar,
than you’ve done your job. Then it’s up to a good system sizing design,
good metering and great user care. Our number one rule is “fully charge
every ten days (at least)”. If you do this, you avoid sulfation, the
number one culprit in early battery demise.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>For a small system the T-105’s typically are the
best value. In larger system’s there are more choices. A string, or two,
of 2v cells can be an excellent choice depending on the price/value ratio.
Medium size systems will normally call for Surrette/Rolls 6v, or Trojan L-16
batteries. All for off grid applications. Sealed batteries for battery backup
grid tied. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Dave Palumbo<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Independent Power LLC <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Offices in Lamoille and Champlain Valley, Vermont<o:p></o:p></span></p>
<p class=MsoNormal><i><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>www.independentpowerllc.com <o:p></o:p></span></i></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>NABCEP Certified PV Installer<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Vermont Solar Partner<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>802.888.7194 <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><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> Friday, October 29, 2010 8:52 PM<br>
<b>To:</b> RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] Are Thick Plate Batteries Worth the Price?<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>HI Nick,<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>I gotta ask have you ever seen a battery last 25 years that
wasn't in float and had to do some work,<o:p></o:p></p>
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<p class=MsoNormal>or even 15 years?<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>jay<o:p></o:p></p>
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<p class=MsoNormal>peltz power<o:p></o:p></p>
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<p class=MsoNormal>On Oct 29, 2010, at 5:17 PM, Nick Soleil wrote:<o:p></o:p></p>
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<br>
<o:p></o:p></p>
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<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>You generally
pay for what you get. The industrial 2V cells generally cost more, but
will last a lot longer (up to 25 yrs.) I think it depends on the
customer's budget, and the long term plans for the property. <span
class=apple-converted-space> </span><o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'> <o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Nick Soleil<br>
Project Manager<br>
Advanced Alternative Energy Solutions, LLC<br>
PO Box 657<br>
Petaluma, CA 94953<br>
Cell: 707-321-2937<br>
Office: 707-789-9537<br>
Fax: 707-769-9037<o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
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