[RE-wrenches] Dark Start for Iron Edison Li

[Matt Sherald]

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 at 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 at 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 at 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 at 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
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20260714/fe4dbfe9/attachment.htm>