Re: [RE-wrenches] Dark Start for Iron Edison Li

[Jay via RE-wrenches]

If it’s lithium then you’ll need to use a dedicated voltage charger. So the battereis are not hit with potentially hi volts from the array.  The same process as once the volts get to where the Bms is working then the solar via CC should take over.  On Jul 14, 2026, at 10:12 AM, Matt Sherald via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote:  Thanks, Jay!   It's a Li battery.   While Iron Edison is no longer in business, I believe that ReLion offers a very similar battery. I'll give the charger a try. -Matt On Tue, Jul 14, 2026 at 11:34 AM Jay via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote: This the nickel iron battery correct? You’ll need a charger like iota or lithium back start type which you just hook up direct. A short cut is to turn off the dc loads side of the system and hit the battery with PV volts directly.  Then once the battery has enough volts to start the CC, it’ll start charging. There must be some dc loads on which drained the batteries. Hard to know if they are dead. They are hard to kill but not impossible. Good luck > On Jul 14, 2026, at 8:59 AM, Matt Sherald via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote: > >  > Hello, > > Has anyone tried to bring an Iron Edison IE48V200 or similar IE model back to life? > > I've worked on this particular off-grid system intermittently over the years.  Recently, the owner arrived for a weekend at the cabin and discovered no lights on any of the electronics or on the IE battery.  The cabin had not been used for six or eight weeks. > > I disconnected the battery from the system and read the terminals with a DMM.  There appears to be 2V.  Is this a heartbeat?  Can I connect a 48V charger and hope to get it back up and running? > > This is the only IE that I've encountered.  I am grateful for any help (I believe the manufacturer is out of business). > > -- > Matt Sherald > PIMBY Energy, LLC > 304-704-5943 > > > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > 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 > > There are two list archives for searching. When one doesn't work, try the other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > _______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org 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 There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org -- Matt Sherald PIMBY Energy, LLC 304-704-5943 _______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org 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 There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org

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