<html><body><span style="font-family:Verdana; color:#000000; font-size:10pt;"><div>Howie,</div><div><br></div><div>The solution is to drive the battery voltage above the gassing point of about 2.37Vpc. If this is done regularly, stratification is not an issue. The best procedure for flooded batteries that remain in float mode for long time periods is periodic equalization charges of 2.58Vpc or more.<br></div><div><br></div><div>Larry Crutcher</div><div>Starlight Solar Power Systems<br></div>
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-------- Original Message --------<br>
Subject: Re: [RE-wrenches] Battery Experience<br>
From: "Howie Michaelson" <<a href="mailto:howie@suncatchervt.com">howie@suncatchervt.com</a>><br>
Date: Fri, July 13, 2012 9:36 am<br>
To: "RE-wrenches" <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>><br>
<br>
Although I'm not clear on this, my impression is that when flooded<br>
batteries float for long periods of time, the electrolyte stratifies and<br>
creates various aging problems, which is why I assume one would want to<br>
cycle the batteries at least somewhat on a somewhat regular basis...<br>
<br>
Howie<br>
-- <br>
Howie Michaelson<br>
NABCEP Certified Solar PV Installer™<br>
<br>
Catamount Solar, LLC<br>
Renewable Energy Systems Sales and Service<br>
VT Solar Electric & Hot Water Incentive Partner<br>
<a href="http://www.CatamountSolar.com">http://www.CatamountSolar.com</a><br>
802-272-0004<br>
<br>
</div>
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