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<DIV><FONT size=2 face=Arial>I would be very curious to hear THE battery
company's, or any battery company's, interest in warranty on a system where the
strings of batteries are paralleled through a buss bar rather than physically
through the bank. The vulnerability to failure of an off-grid system with
only one or two series strings is high enough to be a concern. Then
there's also the not un-trivial issue of handling large batteries
safely.</FONT></DIV>
<DIV> </DIV>
<DIV style="FONT: 10pt Tahoma">
<DIV><BR></DIV>
<DIV style="BACKGROUND: #f5f5f5">
<DIV style="font-color: black"><B>From:</B> <A title=tump@hughes.net
href="mailto:tump@hughes.net">Tump</A> </DIV>
<DIV><B>Sent:</B> Wednesday, December 02, 2009 2:32 AM</DIV>
<DIV><B>To:</B> <A title=re-wrenches@lists.re-wrenches.org
href="mailto:re-wrenches@lists.re-wrenches.org">'RE-wrenches'</A> </DIV>
<DIV><B>Subject:</B> Re: [RE-wrenches] Strings and series of
batteries</DIV></DIV></DIV>
<DIV><BR></DIV>
<DIV><SPAN class=875352312-02122009><FONT color=#0000ff size=2
face=Arial>Surrette Battery, THE battery company suggests NO MORE the 3 parallel
in a string & would like to see 2 preferably.</FONT></SPAN></DIV>
<DIV><SPAN class=875352312-02122009><FONT color=#0000ff size=2 face=Arial>If
there are more the 3 then they really not interested in warrantee
issues.</FONT></SPAN></DIV>
<DIV><SPAN class=875352312-02122009><FONT color=#0000ff size=2 face=Arial>Jamie
where are you??????</FONT></SPAN></DIV>
<DIV><SPAN class=875352312-02122009><FONT color=#0000ff size=2
face=Arial></FONT></SPAN> </DIV>
<DIV><SPAN class=875352312-02122009><FONT color=#0000ff size=2 face=Arial>Now a
days there are plenty of options for a good size/AH BB that can be configured in
1 or 2 parallel strings.</FONT></SPAN></DIV>
<DIV><SPAN class=875352312-02122009><FONT color=#0000ff size=2
face=Arial> Its just that us old guys are having a harder time w/
gravity!</FONT></SPAN></DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV align=left> <A
href="mailto:Tump@swnl.net"><STRONG>Tump@swnl.net</STRONG></A><FONT
face=Arial> <SPAN class=597035700-05092007><FONT
face="Times New Roman"> <FONT
color=#0000ff><U><A
href="http://www.swnl.net/"><STRONG>www.SWNL.net</STRONG></A></U></FONT></FONT></SPAN></FONT><BR> <FONT
color=#0000ff><SPAN
class=597035700-05092007> </SPAN><SPAN
class=597035700-05092007><FONT size=5>Solarwinds
Northernlights</FONT></SPAN></FONT> </DIV>
<DIV align=left><STRONG><EM> Serving Mid Coast Maine & Northern
California<BR> Me.# 207-832-7574 Cl.#
610-517-8401</EM></STRONG></DIV>
<DIV align=left> </DIV>
<DIV
align=left><EM><STRONG>
<FONT color=#0000ff>Blair "TUMP" May</FONT></STRONG></EM></DIV>
<DIV align=left><STRONG><EM> ********
MAINE'S CHARTER ********<BR> <FONT
color=#008000> <U>
NABCEP "Certified PV
Installer"</U></FONT></EM></STRONG><STRONG><EM><U> <BR></U>
<BR> ******** MAINE'S CHARTER
********<BR> </EM></STRONG><STRONG><EM><FONT color=#008000><U>Trace
Xantrex "Certified" Dealer / Installer"<BR></U></FONT>
</EM></STRONG></DIV>
<DIV align=left><STRONG><EM> </EM></STRONG></DIV>
<BLOCKQUOTE style="MARGIN-RIGHT: 0px" dir=ltr>
<DIV></DIV>
<DIV dir=ltr lang=en-us class=OutlookMessageHeader align=left><FONT size=2
face=Tahoma>-----Original Message-----<BR><B>From:</B>
re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <B>On Behalf Of
</B>Dana<BR><B>Sent:</B> Tuesday, December 01, 2009 12:58 PM<BR><B>To:</B>
'RE-wrenches'<BR><B>Subject:</B> [RE-wrenches] Strings and series of
batteries<BR><BR></FONT></DIV>
<DIV class=Section1>
<P class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'">On a
similar subject here –<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'">Long ago, I
had a Trojan battery rep. state that they did not like to see more than [12]
L-16s in a series –parallel bank system. This was due to too many points of
connection / resistance and bad communication due to multiple flow
paths.<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'">Has anyone
else heard similar or contrary
information/recommendations?<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'">Thanks<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'"><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-FAMILY: 'Calibri','sans-serif'; COLOR: #4f81bd; FONT-SIZE: 11pt"><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-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; FONT-SIZE: 10pt">From:</SPAN></B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; FONT-SIZE: 10pt">
re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <B>On Behalf Of </B>Larry
Crutcher, Starlight Solar<BR><B>Sent:</B> Tuesday, December 01, 2009 10:42
AM<BR><B>To:</B> RE-wrenches<BR><B>Subject:</B> Re: [RE-wrenches] concord
batteries, EQUALIZE Them!<o:p></o:p></SPAN></P></DIV></DIV>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><o:p> </o:p></P>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal>If the 180 watt panel will
provide enough current to run the recovery process, then give it a try. What I
expect is that your current will vary throughout the day. Not sure if this is
a critical point or if it will just prolong the process. Pay attention to the
temperature. I use a laser temp probe on the terminals every 30 minutes
to verify.<o:p></o:p></P>
<DIV>
<DIV>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><o:p> </o:p></P></DIV>
<DIV>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal>Another thing to monitor is the
current. It will probably start very low and build over time due to
high resistance from sulfated plates. During this time the voltage might get
really high and then lower some. Don't worry about the voltage. After a while
the current will begin to drop. This means the recovery process is
working. <o:p></o:p></P></DIV>
<DIV>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><o:p> </o:p></P></DIV>
<DIV>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal>I just realized that this
battery bank must be 4 in series and ten parallel strings. This is a horrible
design that can never work right without extensive monthly maintenance. The
strings with higher resistance will not be charged properly. Because of this,
many strings will be undercharged every day. EVERY day! So even if you recover
these batteries, someone will need to test and equalize at least every month.
I really want to stress this point as multiple parallel batteries are the ruin
and waste of many thousands of tons of batteries each year. I never design for
more than two strings in parallel. Do this and be happy.<o:p></o:p></P></DIV>
<DIV>
<DIV>
<DIV>
<DIV>
<DIV>
<DIV>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Helvetica','sans-serif'; COLOR: black; FONT-SIZE: 13.5pt"><o:p> </o:p></SPAN></P></DIV>
<DIV>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Helvetica','sans-serif'; COLOR: black; FONT-SIZE: 13.5pt">Larry
Crutcher<o:p></o:p></SPAN></P></DIV>
<DIV>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Helvetica','sans-serif'; COLOR: black; FONT-SIZE: 13.5pt"><A
href="http://www.starlightsolar.com">www.starlightsolar.com</A><o:p></o:p></SPAN></P></DIV>
<DIV>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Helvetica','sans-serif'; COLOR: black; FONT-SIZE: 13.5pt"><A
href="mailto:larry@starlightsolar.com">larry@starlightsolar.com</A><o:p></o:p></SPAN></P></DIV>
<DIV>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Helvetica','sans-serif'; COLOR: black; FONT-SIZE: 13.5pt">(928)
941-1660<o:p></o:p></SPAN></P></DIV>
<DIV>
<P style="MARGIN-LEFT: 0.5in" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Helvetica','sans-serif'; COLOR: black; FONT-SIZE: 13.5pt"><o:p> </o:p></SPAN></P></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></BLOCKQUOTE>
<P>
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