<html><body><div style="color:#000; background-color:#fff; font-family:arial, helvetica, sans-serif;font-size:12pt"><div><span>There is to much water under the bridge. It can't be nothing. The battery manufacture make the battery and then forms the plates, he ships the battery expecting and knowing that the user will cycle the battery. In the cycling process there are "chanels formed in the plate for acid to enter, and consequently the plate becomes a better plate. the cycling forces avenues to form, and as everyone knows the battery capacity increases. this increase is easy to see in the performance. Then the battery begins to very slowly lose capacity as the plates detererate.over several thousand cycles. </span></div><div><span></span> </div><div><span>The enlightenment here is the small minimum number of cycles it takes to maintain a battery. A flooded Lead antimomy battery has
a self discharge rate, during that discharge H2SO4 becomes H2O the H2O rises to the top, leaving acid at the bottom. now you have stratification, in the presence of H2O the lead Oxide softens and will actually desolve. the water and acid need to be mixed, so a bubling action is rfquired, this is controlled over charge. So as long as the battery is equalized that is the only cycleing it needs per John and Jammie.</span></div><div><span></span> </div><div><span>Darryl </span></div><div><br></div> <div style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div dir="ltr"> <font size="2" face="Arial"> <div style="margin: 5px 0px; padding: 0px; border: 1px solid rgb(204, 204, 204); height: 0px; line-height: 0; font-size: 0px;" class="hr" contentEditable="false" readonly="true"></div>
<b><span style="font-weight: bold;">From:</span></b> Maverick Brown [Maverick Solar] <maverick@mavericksolar.com><br> <b><span style="font-weight: bold;">To:</span></b> 'RE-wrenches' <re-wrenches@lists.re-wrenches.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Sunday, February 19, 2012 8:04 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [RE-wrenches] cycling flooded batteries is not necessary<br> </font> </div> <br>
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<div dir="ltr" align="left"><span class="yiv69158878281501201-20022012"><font face="Arial"><font color="#0000ff"><font size="2"><span class="yiv69158878578251701-20022012">Other than some
statements I have heard about battery reaching full capacity after X cycles...
Maybe that is a wives-tale as well.</span></font></font></font></span></div>
<div dir="ltr" align="left"><span class="yiv69158878281501201-20022012"><font face="Arial"><font color="#0000ff"><font size="2"><span class="yiv69158878578251701-20022012"></span></font></font></font></span> </div>
<div dir="ltr" align="left"><span class="yiv69158878281501201-20022012"><span class="yiv69158878578251701-20022012"></span><font face="Arial"><font color="#0000ff"><font size="2"><span class="yiv69158878578251701-20022012">Otherwise, m</span>aybe I was not clear.
By cycling, I mean daily (or periodic) Absorb<span class="yiv69158878578251701-20022012"> as I mentioned in the email</span>, not
loading/draining the battery (other than the clear statement to test to see if
the system actually works as a backup system<span class="yiv69158878578251701-20022012">
every once in a while</span>).<span class="yiv69158878578251701-20022012"> No real deep
draining necessary. For instance, after some months without issue, one customer
called in a panic because the electricity did go off one night and they had no
backup. Turns out, somehow they turned off the "Inverter" function. Easy
solution, press a few buttons, etc. to turn on the
inverter.</span></font></font></font></span></div>
<div><font color="#0000ff" size="2" face="Arial"></font> </div>
<div><span class="yiv69158878578251701-20022012"><font color="#0000ff" size="2" face="Arial">Maybe
all I need is a Time function attached to Selling, like the Charge function has
on some brands. Who knows.</font></span></div>
<div><span class="yiv69158878578251701-20022012"><font color="#0000ff" size="2" face="Arial"></font></span> </div>
<div><span class="yiv69158878578251701-20022012"><font color="#0000ff" size="2" face="Arial">It is
clear that FLAs have a self discharge and some percent of capacity is obtained
during Absorb, so a long term Float only might reduce some of the batteries
capacity.</font></span></div>
<div><span class="yiv69158878578251701-20022012"><font color="#0000ff" size="2" face="Arial"></font></span> </div>
<div><span class="yiv69158878578251701-20022012"><font color="#0000ff" size="2" face="Arial">Anyway, Outback does have the "Absorb before Sell" function
when using the FN-DC in the system. Not sure about the newer version of
hardware. The "Parameters Met" settings gave me fits until I figured it out.
Plus, the FN-DC is not free.</font></span></div>
<div><span class="yiv69158878578251701-20022012"><font color="#0000ff" size="2" face="Arial"></font></span> </div>
<div><span class="yiv69158878578251701-20022012"><font color="#0000ff" size="2" face="Arial">The XW
has a function for Absorb before/during sell. I think it requires a XW CC. We
use every brand of CC appropriate for the site. Also, the setup instructions
are weird in my mind since it requires the Grid Support Voltage to
programmed to very high value. I wish they would just have added the function
"Enhanced Interactive Mode = Enable", etc. </font></span></div>
<div><span class="yiv69158878578251701-20022012"><font color="#0000ff" size="2" face="Arial"></font></span> </div>
<div><span class="yiv69158878578251701-20022012"><font color="#0000ff" size="2" face="Arial">Ok,
enough rambling...</font></span></div>
<div><span class="yiv69158878578251701-20022012"><font color="#0000ff" size="2" face="Arial"></font></span> </div>
<div><span class="yiv69158878578251701-20022012"><font color="#0000ff" size="2" face="Arial">Maverick</font></span></div>
<div><span class="yiv69158878578251701-20022012"></span> </div>
<div><span class="yiv69158878578251701-20022012"><font color="#0000ff" size="2" face="Arial"></font></span> </div>
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<font size="2" face="Tahoma"><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> Saturday, February 18, 2012 3:37
PM<br><b>To:</b> RE-wrenches<br><b>Subject:</b> [RE-wrenches] cycling flooded
batteries is not necessary<br></font><br></div>
<div></div><font size="4" face="arial">
<div style="margin: 0px; padding: 0px;">to
reiterate wrenches:</div>
<div style="margin: 0px; padding: 0px;"> </div>
<div style="margin: 0px; padding: 0px;">two
battery manufacturers (surrette & trojan) have both stated there is NO NEED
to cycle floating, flooded lead-antimony batteries. i have heard this urban
legend for some time and it is nice to finally have it put to rest as an
incorrect myth.</div>
<div style="margin: 0px; padding: 0px;"> </div>
<div style="margin: 0px; padding: 0px;">todd</div>
<div style="margin: 0px; padding: 0px;"> </div>
<div style="margin: 0px; padding: 0px;"> </div>
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<div style="margin: 0px; padding: 0px;"> </div>
<div style="margin: 0px; padding: 0px;">On
Saturday, February 18, 2012 7:04am, "Doug Wells"
<dwells@thesolarspecialists.com> said:<br><br></div>
<div id="yiv69158878SafeStyles1329600689">
<div style="margin: 0px; padding: 0px;">>
Maverick,<br>> <br>> "But you would think after 20 years, inverter
manufacturers would make some<br>> software similar to generator cycling to
handle this cycling issue. "<br>> <br>> I believe that the XW Inverters
have this ability in sell mode. There is<br>> traditional sell voltage. And
then there is a setting that puts the batteries<br>> through a traditional
bulk cycle while still "selling" back any excess energy.<br>> The next
question would be, is this better for battery longevity. Seems like a<br>>
hybrid of the two would be ideal.<br>> <br>> Doug Wells<br>> The Solar
Specialists<br>> Morrisville, VT 05661<br>> (p) 802-223-7014<br>> (c)
802-498-5856<br>> <a href="http://www.thesolarspecialists.com" target="_blank">www.thesolarspecialists.com</a><br>> <br>>
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