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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>My one string of 1476 AH IBE 2 V cells went 19 years before retiring them to a neighbor’s off grid system, where they are now working.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>One string has my vote!<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:10.0pt;font-family:"Calibri","sans-serif";color:navy'>Sincerely,<br><br>Chris Worcester<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:navy'>Solar Wind Works<br>NABCEP Certified PV Installer<br>Phone: 530-582-4503<br>Fax: 530-582-4603<br><a href="http://www.solarwindworks.com/">www.solarwindworks.com</a><br><a href="mailto:chris@solarwindworks.com">chris@solarwindworks.com</a><br>"Proven Energy Solutions"</span><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><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><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>Brian Mehalic<br><b>Sent:</b> Tuesday, May 31, 2011 3:25 PM<br><b>To:</b> RE-wrenches<br><b>Subject:</b> Re: [RE-wrenches] 24 volt Battery Bank comparison<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Hi Wayne-<o:p></o:p></p><div><p class=MsoNormal>While I think a lot of folks will agree that a single string is better for the long term health of the batteries as it results in more even charging, I still like the idea of at least two strings. That way if a single battery fails, that string can be removed and the end-user can at least get by on half of the pack until a replacement can be installed.<o:p></o:p></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'>Brian<o:p></o:p></p><div><p class=MsoNormal>On Tue, May 31, 2011 at 10:19 PM, James Surrette <<a href="mailto:james@surrette.com">james@surrette.com</a>> wrote:<o:p></o:p></p><div style='margin-left:3.0pt;margin-top:3.0pt;margin-right:3.0pt;margin-bottom:.75pt'><p style='margin:0in;margin-bottom:.0001pt'><span style='font-family:"Arial","sans-serif"'>Hi Wayne,</span> <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p style='margin:0in;margin-bottom:.0001pt'><span style='font-family:"Arial","sans-serif"'>I look forward to the input from the wrenches.</span> <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p style='margin:0in;margin-bottom:.0001pt'><span style='font-family:"Arial","sans-serif"'>My recommendation, regardless of the brand, would be for one string.</span> <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p style='margin:0in;margin-bottom:.0001pt'><span style='font-family:"Arial","sans-serif"'>Regards,</span> <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p style='margin:0in;margin-bottom:.0001pt'><span style='font-family:"Arial","sans-serif"'>Jamie</span><br><br>>>> Wayne Irwin <<a href="mailto:wayne@pureenergysolar.com" target="_blank">wayne@pureenergysolar.com</a>> 5/31/2011 6:49 PM >>><br>Hello Esteemed Battery Gurus,<br><br>Which of the following do you believe is the better 24 V battery bank?<br><br>A) 13 - Rolls 2-YS-31 2430 AH @ 20 HR (one string)<br><br>or<br><br>B) 9 - Rolls 8-CS-25P 820 AH @ 20 HR (3 strings of 3)<br><br>Thank you in advance for your input!<br><br><br><span style='color:#76923C'>Wayne Irwin, EE<br>Director of Engineering<br>Pure Energy Solar International Inc. <br>State Licensed Solar Contractor<br>License # CVC56695 </span><br><a href="mailto:PureEnergySolar@hotmail.com" target="_blank">Wayne@PureEnergySolar.com</a><br><a href="http://pureenergysolar.net/" target="_blank">http://pureenergysolar.com</a><br><span style='color:#76923C'>352 377-6527 Office<br>352 336-3299 Fax<br>352 316-1637 Cell</span><o:p></o:p></p><p style='margin:0in;margin-bottom:.0001pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>The content of this message is Pure Energy Solar Confidential. If you are not the intended recipient and have received this message in error, any use or distribution is prohibited. Please notify me immediately by reply e-mail and delete this message from your computer system. Thank you.</span> <o:p></o:p></p><p style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in'><o:p> </o:p></p><p class=MsoNormal>This email and its attachments have been scanned by iConnection E-Mail Firewall for viruses, spam, and malicious content. The information transmitted in this email is intended only for the entity or person to which it is addressed and may contain confidential/privileged material. If you received this in error, please contact the sender and delete the material from any computer. Any review, retransmission, dissemination, or other use of this information by persons or entities other than the intended recipient is strictly prohibited. %^^% <o:p></o:p></p></div><p class=MsoNormal style='margin-bottom:12.0pt'><br>_______________________________________________<br>List sponsored by Home Power magazine<br><br>List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a><br><br>Options & settings:<br><a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br><br>List-Archive: <a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org" target="_blank">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br><br>List rules & etiquette:<br><a href="http://www.re-wrenches.org/etiquette.htm" target="_blank">www.re-wrenches.org/etiquette.htm</a><br><br>Check out participant bios:<br><a href="http://www.members.re-wrenches.org" target="_blank">www.members.re-wrenches.org</a><br><br><o:p></o:p></p></div><p class=MsoNormal><br><br clear=all><br>-- <br>========================<br>Brian Mehalic <br>NABCEP Certified Solar PV Installer™ R031508-59<o:p></o:p></p><div><p class=MsoNormal>IREC ISPQ Certified Affiliated Instructor/PV US-0132<o:p></o:p></p><div><p class=MsoNormal>PV Curriculum Developer and Instructor<o:p></o:p></p><div><p class=MsoNormal>Solar Energy International<br>Carbondale, CO 81623<br><a href="http://www.solarenergy.org" target="_blank">http://www.solarenergy.org</a><o:p></o:p></p></div></div></div><p class=MsoNormal><o:p> </o:p></p></div></div></body></html>