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From: wmartin <wwm@wwmartin.net>
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Subject: Re: OT: Kids got an E-scooter?
Date: Sun, 23 Jun 2024 12:51:30 -0700
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On 6/23/24 09:56, Cursitor Doom wrote:
> On Sun, 23 Jun 2024 11:25:21 +1000, Bill Sloman wrote:
> 
>> On 23/06/2024 9:58 am, john larkin wrote:
>>> On Sat, 22 Jun 2024 22:39:48 +0100, TTman <kraken.sankey@gmail.com>
>>> wrote
>>>> On 22/06/2024 18:22, Cursitor Doom wrote:
>>>>> On Sat, 22 Jun 2024 09:12:04 -0700, john larkin wrote:
>>>>>> On Sat, 22 Jun 2024 13:22:25 +0100, Cursitor Doom
>>>>>> <cd@notformail.com>
>>>>>> wrote:
>>>>>>
>>>>>>> Get rid of it!
>>>>>>>
>>>>>>> https://www.bbc.co.uk/news/articles/cxwwzd99r2do
>>>>>>
>>>>>> I doubt that there is any serious quality control on cheap
>>>>>> batteries.
>>>>>>
>>>>>> Kids are maiming and killing themselves on cheap unlicensed
>>>>>> battery-powered scooters and such too.
>>>>>>
>>>>>> Imagine maybe a million unused battery-powered toys gathering dust
>>>>>> in garages and closets waiting to explode.
>>>>>
>>>>> A frightening thought! Not so much batteries; more incendiary bombs.
>>
>> If you can describe it as a thought. More a deluded fantasy/
>>>>>> https://pubmed.ncbi.nlm.nih.gov/33963903/
>>>>>>
>>>>>> https://www.amazon.com/Go-Bowen-Baja-1000W-Electric-Go-Kart/dp/
>>>>> B00NOD6T4G
>>>>>
>>>> That's why we charged our RC lipos in a fireproof bag...
>>>
>>> If it ignites, it would burn through a steel lunchbox.
>>
>> Really? Do you have any evidence for that that claim?
>>
>> This is just more of the usual alarmist nonsense about lithium ion
>> batteries. This should be the kind of forum where we discuss the design
>> of lithium ion battery chargers and lithium ion battery condition
>> monitors - which could, in principle be designed to discharge the
>> battery if the internal temperature of the battery rose high  enough to
>> suggest a risk of runaway self-discharge.
>>
>> Cursitor Doom and John Larkin are much too devoted to their alarmist
>> fantasies to want to think  about that (always assuming that  they could
>> if they wanted to).
>>
>> --
>> Bill Sloman, Sydney
> 
> Perhaps you'd like to explain to the lady who's house burned to the ground
> and her similarly stricken neighbours that this is all just an "alarmist
> fantasy" Bill.

Alarmist fantasy in action... 
https://www.sandiegouniontribune.com/2024/05/18/battery-fire-at-storage-facility-in-otay-mesa-keeps-reigniting/

also: (different incident) "On April 19, 2019, a fire captain, a fire 
engineer and two career firefighters suffered serious injuries dealing 
with a thermal runaway incident at a 2.16-megawatt battery facility in 
Surprise, Arizona. According to a Underwriters Laboratories report on 
the incident, When firefighters opened a door to the building, a 75-foot 
jet of flame extended outward from the doorway. The fire captain was 
blown over 70 feet against a chain-link fence surrounding the building. 
The entire hazardous materials team lost consciousness from the blast. "

Not to be an alarmist, just be aware that even professionally managed 
lithium batteries can do bad things. Don't keep them in your house...