Same here! We use mostly SunExtender and have had the same issue. As far as I know, they are the same battery with different labels. I have had some success in being a LOT more aggressive with voltages & times and sometimes going above FLA settings to get banks to recover and perform closer to spec. Makes me nervous though, since more than 50% of a customer’s investment can just vaporize with what one thought was appropriate charge settings. I suggest EQ as the new norm for AGMs, especially in grid-tied-battery-backup cases and where off-grid use does not give adequate absorb time.
Maverick Brown Off-Grid Solar Commander since 2006 Maverick Solar Enterprises, Inc. SunFlow Systems Cathodic Protection [email protected] 512-460-9825 > On Jan 19, 2018, at 11:10 AM, Glenn Burt <[email protected]> wrote: > > So the Lifeline models, not the SunXtender models? > > Glenn > Sent from my 'smart' phone so please excuse spelling and typographical errors. > > ------ Original message------ > From: Starlight Solar Power Systems > Date: Fri, Jan 19, 2018 12:02 PM > To: RE-wrenches; > Cc: > Subject:[RE-wrenches] Concorde Lifeline Battery failures > > Drake, > > We have at least a dozen systems that failed early from lost capacity over > the last 2 years with 2-4 year old battery banks. The AGM failures are all > Lifeline battery made by Concorde. > > Lifeline and my distributor both told me I was “the only one” with failures. > I dropped Lifeline battery after being a dealer for 16 years and many > hundreds of systems installed. Historically we had seen 7-10 years average > life from battery banks that we installed. One regular customer is at 12 > years and still going. I have a sense of vindication now hearing from others > about Concorde capacity issues. > > Thank you, > > Larry Crutcher > Starlight Solar Power Systems > (928) 342-9103 <tel:(928) 342-9103> > > > > > > On Jan 18, 2018, at 9:18 AM, Drake wrote: > > A Concorde AGM PVX 3050T recently failed in a bank of 8. Larry mentioned a > couple of brands experiencing problems. These batteries are 4 years old and > have been kept in float in an off grid system, never stressed. Hopefully > Concorde batteries are not going the way of Trojan L-16s. Has anyone else had > problems with Concorde? > > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: [email protected] <mailto: > [email protected]> > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > <http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org> > > List-Archive: http://www.mail-archive.com/[email protected] > <mailto:://www.mail-archive.com/[email protected]>/maillist.ht > <http://maillist.ht/>ml > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm <http://www.re-wrenches.org/etiquette.htm> > > Check out or update participant bios: > www.members.re-wrenches.org <http://www.members.re-wrenches.org/> > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/[email protected]/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org >
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