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On 2/19/2012 6:04 PM, Maverick Brown [Maverick Solar] wrote:
<blockquote cite="mid:F2D164AB81E240778E45B75CB0AEAC0A@MSE002"
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<div dir="ltr" align="left"><span class="281501201-20022012"><font
face="Arial"><font color="#0000ff"><font size="2"><span
class="578251701-20022012">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>
</blockquote>
<br>
<br>
Right.... Not cycling like that associated with the memory effect
of nicad batteries, but reaching full capacity after some<br>
time in service is what I had heard from Jamie Surrette. Can't
remember exactly why but may have been from some plate forming.<br>
<br>
boB<br>
<br>
<br>
<br>
<blockquote cite="mid:F2D164AB81E240778E45B75CB0AEAC0A@MSE002"
type="cite">
<div dir="ltr" align="left"><span class="281501201-20022012"><font
face="Arial"><font color="#0000ff"><font size="2"><span
class="578251701-20022012"></span></font></font></font></span> </div>
<div dir="ltr" align="left"><span class="281501201-20022012"><span
class="578251701-20022012"></span><font face="Arial"><font
color="#0000ff"><font size="2"><span
class="578251701-20022012">Otherwise, m</span>aybe I
was not clear. By cycling, I mean daily (or
periodic) Absorb<span class="578251701-20022012"> 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="578251701-20022012"> every once in a while</span>).<span
class="578251701-20022012"> 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> </div>
<div><span class="578251701-20022012"><font size="2"
color="#0000ff" 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="578251701-20022012"></span> </div>
<div><span class="578251701-20022012"><font size="2"
color="#0000ff" 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="578251701-20022012"></span> </div>
<div><span class="578251701-20022012"><font size="2"
color="#0000ff" 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="578251701-20022012"></span> </div>
<div><span class="578251701-20022012"><font size="2"
color="#0000ff" 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="578251701-20022012"></span> </div>
<div><span class="578251701-20022012"><font size="2"
color="#0000ff" face="Arial">Ok, enough rambling...</font></span></div>
<div><span class="578251701-20022012"></span> </div>
<div><span class="578251701-20022012"><font size="2"
color="#0000ff" face="Arial">Maverick</font></span></div>
<div><span class="578251701-20022012"></span> </div>
<div><span class="578251701-20022012"></span> </div>
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<hr tabindex="-1">
<font size="2" face="Tahoma"><b>From:</b>
<a class="moz-txt-link-abbreviated" href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>
[<a class="moz-txt-link-freetext" href="mailto:re-wrenches-bounces@lists.re-wrenches.org">mailto:re-wrenches-bounces@lists.re-wrenches.org</a>] <b>On
Behalf Of </b><a class="moz-txt-link-abbreviated" href="mailto:toddcory@finestplanet.com">toddcory@finestplanet.com</a><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>
<font size="4" face="arial">
<p style="PADDING-BOTTOM: 0px; MARGIN: 0px; PADDING-LEFT: 0px;
PADDING-RIGHT: 0px; PADDING-TOP: 0px">to reiterate wrenches:</p>
<p style="PADDING-BOTTOM: 0px; MARGIN: 0px; PADDING-LEFT: 0px;
PADDING-RIGHT: 0px; PADDING-TOP: 0px"> </p>
<p style="PADDING-BOTTOM: 0px; MARGIN: 0px; PADDING-LEFT: 0px;
PADDING-RIGHT: 0px; PADDING-TOP: 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.</p>
<p style="PADDING-BOTTOM: 0px; MARGIN: 0px; PADDING-LEFT: 0px;
PADDING-RIGHT: 0px; PADDING-TOP: 0px"> </p>
<p style="PADDING-BOTTOM: 0px; MARGIN: 0px; PADDING-LEFT: 0px;
PADDING-RIGHT: 0px; PADDING-TOP: 0px">todd</p>
<p style="PADDING-BOTTOM: 0px; MARGIN: 0px; PADDING-LEFT: 0px;
PADDING-RIGHT: 0px; PADDING-TOP: 0px"> </p>
<p style="PADDING-BOTTOM: 0px; MARGIN: 0px; PADDING-LEFT: 0px;
PADDING-RIGHT: 0px; PADDING-TOP: 0px"> </p>
<p style="PADDING-BOTTOM: 0px; MARGIN: 0px; PADDING-LEFT: 0px;
PADDING-RIGHT: 0px; PADDING-TOP: 0px"> </p>
<p style="PADDING-BOTTOM: 0px; MARGIN: 0px; PADDING-LEFT: 0px;
PADDING-RIGHT: 0px; PADDING-TOP: 0px"> </p>
<p style="PADDING-BOTTOM: 0px; MARGIN: 0px; PADDING-LEFT: 0px;
PADDING-RIGHT: 0px; PADDING-TOP: 0px">On Saturday, February
18, 2012 7:04am, "Doug Wells"
<a class="moz-txt-link-rfc2396E" href="mailto:dwells@thesolarspecialists.com"><dwells@thesolarspecialists.com></a> said:<br>
<br>
</p>
<div id="SafeStyles1329600689">
<p style="PADDING-BOTTOM: 0px; MARGIN: 0px; PADDING-LEFT: 0px;
PADDING-RIGHT: 0px; PADDING-TOP: 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 class="moz-txt-link-abbreviated" href="http://www.thesolarspecialists.com">www.thesolarspecialists.com</a><br>
> <br>
> _________________________<br>
</p>
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