[RE-wrenches] Exploding LFP battery

Thu Jun 17 07:23:07 EDT 2021

This just proves the weak link is the BMS.
I had the honor of replacing the BMS in that exact model in a stack of 3
batteries.  Luckily it was on the bottom shelf so I could pull the monster
out onto the floor to get access to the lid.  The lid is sealed shut but
with persistence it opened.  I was working with their tech support and
following their instructions.  I disconnected it from the other two that
were in a parallel configuration before opening.  Battery voltage was zero
at the terminals. I did voltage checks at various checkpoints to confirm it
was the BMS at fault. Relion sent a new BMS which I carefully installed and
it has worked fine since.  Had I seen this photo first, I may have not been
so eager to see the inside of that battery.

John Blittersdorf

On Wed, Jun 16, 2021 at 6:13 PM Chris Worcester <chris at solarwindworks.com>
wrote:

> https://www.redwoodmaterials.com/recyclewithus
> these folks are seriously getting into recycling lithium batteries,
> setting up house out by the Tesla giga factory out east of Reno.
>
>
>
> Chris Worcester
> chris at solarwindworks.com
> 530-448-9692
>
> Sent from my Samsung Galaxy s9.
>
>
> -------- Original message --------
> From: jay <jay.peltz at gmail.com>
> Date: 6/16/21 12:49 PM (GMT-08:00)
> To: Jeff Clearwater <jeffc at villagelab.net>, Jeff Clearwater <
> jeffc at villagepowerdesign.com>, RE-wrenches <
> re-wrenches at lists.re-wrenches.org>
> Subject: Re: [RE-wrenches] Exploding LFP battery
>
> Hi Jeff,
>
> I don’t know if you saw the photo.  No cutting involved.
> The top is removed with roughly 14 fasteners.
> No tools or prying was involved in the removal of the top cover.
>
> jay
>
> On Jun 16, 2021, at 12:00 AM, Jeff Clearwater <
> jeffc at villagepowerdesign.com> wrote:
>
> Hey Jay,
>
> So I don't believe ReLion batteries are openable - so it's most likely
> that when he decided to open it he cut into it and shorted the leads.
>
> As for recycling - first is health safety!  I'd suggest he contact the
> manufacturer and get specific instructions for safing the mess.  Will
> Prowess of DIY Solar Youtube channel had some leaky cells and the
> manufacturer sent specific instructions to contain and ship back the unit.
> You could contact him and he might know but the manufacturer might know
> better for that specific model.
>
> Hope that helps!
>
> Jeff C.
> Village Power Design
>
> frenergy <frenergy at psln.com>
>
> June 15, 2021 at 9:39 PM
>
> Very few details...What does it mean "he opened it up"  I would even know
> how to do that with the L-ions I've been around, seems like its something a
> manufacturer should be doing.  Temperature?  charge rate? recent usage
> history? Age? Was it disconnected? Did contacts touch a conductor?........
>
>             You can probably get water to explode if you abuse it just
> right.
>
> Bill
> Feather River Solar Electric
> Bill Battagin, Owner
> 4291 Nelson St.
> <https://www.google.com/maps/search/4291+Nelson+St.+Taylorsville,+CA+95983?entry=gmail&source=g>
> Taylorsville, CA 95983
> <https://www.google.com/maps/search/4291+Nelson+St.+Taylorsville,+CA+95983?entry=gmail&source=g>
> 530.284.7849
> CA Lic 874049
> www.frenergy.net
> On 6/15/2021 8:14 PM, Jay wrote:
> --
>
>
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> Jay <jay.peltz at gmail.com>
>
> June 15, 2021 at 8:14 PM
> A fellow installer sent me this just now.
> The battery wasn’t working, 5v.
> He opened it up and it exploded when he opened it. The lid hit the roof.
> Fortunately no one was injured.
>
> Anyone know what to do with this? IE recycling?
>
> And just another example of non explosive lithium batteries exploding
>
> Jay
> Peltz power.
>
>
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