Gary I have been told that below a certain voltage the LI-ion cells suffer a permanent death. I believe these batteries are small cells in parallel.strings and then series connected strings. to make the voltage.can you use a lab power supply to start the charge? I purchased one for about 60 to 90 $ that allows me to adjust the voltage and limit the current until the battery gets up to voltage IF it ever does..
On Fri, Feb 9, 2018 at 7:16 PM, Gary Rochlin <g.roch...@gmail.com> wrote: > Does anyone have any information or specifications for an older circa > 2010-2012 iCel System Lithium Ion Battery. We are doing a repair on an > older 48V Lithium Ion system consisting of 3-6 ICel batteries wired in > parallel and 1 Xantrex 6848 and 2 Xantrex Conext MPPT 60 150 Solar Charge > controllers. Via a surge from SCE system shut down and sat before we were > called in. Batteries are sitting at 6.67V and the charge controller will > not turn on unless the batteries are at 40V since at the time they were > made for lead acid batteries. I’m looking at finding the way to charge the > iCel batteries or goose the charge controller into thinking 40V are coming > from the batteries. I think I’m making sense here. > > > > *Blue Sky Energy * > > g.rochlin@ <mtnri...@verizon.net>blue-sky-energy.com > > > > > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches. > org/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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