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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'>Mac,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I have had good success using Full River AGM's in difficult situations. One system near the Canadian border here in Vermont had no homeowner care for two months in the winter. PV array became covered with snow and they had left their inverter on to run a refrigerator. Of course the batteries became discharged and they were in temperatures well below freezing. I was brought in to assess and service the situation. I found these 6v 250AH AGM's with about 4 volts each. I assumed they were ruined.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Nope. I brought them back to my shop and warmed them up, charged them and then did a load test and they all tested out at or above manufacturer specs. They have been working well for another three years now.<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:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>David Palumbo <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Independent Power LLC<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>462 Solar Way Drive<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hyde Park, VT 05655<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>802-371-8678 cell<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>802-888-4917 home<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: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 [mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>Mac Lewis<br><b>Sent:</b> Monday, March 27, 2017 8:53 AM<br><b>To:</b> RE-wrenches<br><b>Subject:</b> [RE-wrenches] High End battery<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Hi Wrenches,<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I've got a customer that has an older off-grid system with a 5 string ~2000 Ahr (No I didn't install this) L16 battery bank that is failing. Its a Trace SW 4024 system where the batteries are located in a difficult-to-access crawl space where I'm sure they never got watered.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>We'd like to have these characteristics:<o:p></o:p></p></div><div><p class=MsoNormal>1. Modular (need to be able to get them to the crawl space)<o:p></o:p></p></div><div><p class=MsoNormal>2. Maintenance free<o:p></o:p></p></div><div><p class=MsoNormal>3. Able to be abused and bounce back<o:p></o:p></p></div><div><p class=MsoNormal>4. Compatible with an Outback MX 60 charge controller (preferably)<o:p></o:p></p></div><div><p class=MsoNormal>5. In case of charge controller failure, we'd like the batteries to be able to go over the winter with no charge and not be damaged<o:p></o:p></p></div><div><p class=MsoNormal>6. Need about 30-40 kWh bank size<o:p></o:p></p></div><div><p class=MsoNormal>7. Able to withstand cool temps (operate decently at 45F) withstand near freezing temps over winter (with no usage)<o:p></o:p></p></div><div><p class=MsoNormal>8. Price tag isn't a big constraint with these customers<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>What are some batteries you might recommend?<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Thanks in advance<br>-- <o:p></o:p></p><div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal style='margin-bottom:12.0pt'>Mac Lewis<b><span style='font-family:"Arial","sans-serif";color:#FF9900'><o:p></o:p></span></b></p><p><span style='color:#305A78'>"Yo solo sé que no sé nada." </span><b><span style='color:#686868'>-Sócrates</span></b><b><span style='font-family:"Arial","sans-serif";color:#FF9900'><o:p></o:p></span></b></p></div></div></div></div></body></html>