[RE-wrenches] Discover AES explosion!

[Dave Angelini Offgrid Solar]

The 6650 definitely meets all the UL's, ETLs, and UN's. Probably the 
first one to do this and since Michael said that it is a first for 
Discover, the jury is out until an FA is complete.

Good points by you Larry, but not valid for many thousands of Discover 
AES 6650s.

Dave Angelini Offgrid Solar
"we go where powerlines don't"
    [1]https://offgridsolar1.com/ [2]  [1]
e-mail  offgridsolar at sti.net
text 209 813 0060

On 2024-05-03 9:23 am, Starlight via RE-wrenches wrote:

> Hi Michael,
> 
> For 11 years I've been in the Li battery business. We formerly designed 
> and installed over a hundred Li battery based systems, mostly mobile 
> installations but UPS and off-grid as well. Since 2018, we no longer do 
> installations.  Currently we sell our own Li-ion brand with many 
> thousands sold and in use. We have not had any fire or explosion 
> claims.
> 
> Most Li batteries sold in the US are not UL1973 or ETL certified. Many 
> batteries are very cheaply made to have the lowest price. Based on my 
> experience I consider any battery not certified as potentially 
> dangerous. I don't know if Discover is certified and make no statement 
> about them.
> 
> An important question is what will an insurance company do if there is 
> a claim and the product you install is not certified to these high 
> safety standards? Worth considering.
> 
> Larry Crutcher
> Starlight Power Systems
> 
> On May 3, 2024, at 8:21 AM, Michael Morningstar via RE-wrenches 
> <re-wrenches at lists.re-wrenches.org> wrote:
> 
> Two days ago, one of my clients came home to find the door of his 
> powershed blown off its hinges and a smoldering Discover AES. The case 
> was still intact and the entire room is coated with a fine 
> graphite-like powder. The fire department was unable/unwilling to do 
> anything to cool the battery down and it smoldered for a day. 199 
> degrees fahrenheit after 18 hours. Discover is taking this seriously 
> and their response has been great. They are in contact with the cell 
> manufacturer to find a "best practices" for the clean up of the room. 
> They also have said that this is a first for them (lucky me).
> 
> I'm just curious how rare or common LiFePO 4 explosions are? I've never 
> heard of one in the context of residential storage. This has me pretty 
> freaked out.
> 
> Michael Morningstar
> 
> Morningstar Electric Inc
> PO Box 1494
> Mount Shasta, CA 96067
> 530-921-0560
> CSLB 1116835
> mjmorningstar at gmail.com
> 
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Links:
------
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