Haven't spent any time reading up on this but I sure hope it is unique to the size, abuse, and/or charging nuances of these particular batteries and not an across-the-board thing that we need to worry about say...for example...these nice little USB based UPS units folk have come up with for backup power for HE (some fully assembled from China, some built with parts from the same....but all reliant on lithium batteries).
It's right up there with some communities now stating that you shouldn't charge your electric in your garage or even park it in the garage overnight if fully charged.
Same people that think that electric cars have more fires than gasoline ones, they are just reported more on the news because of the intensity of those fires. But all things put in to proportion (number of gas cars vs electric cars), the numbers do prove that gas cars are still way more dangerous fire wise than electric. Most of the electric car fires are when they are Hybrid cars with a gas engine in them. Link from the Kelley Blue Book...
https://www.kbb.com/car-news/study-electric-vehicles-involved-in-fewest-car-fires/
Agreed that lithium battery fires are the hardest to put out. I spoke to one of the chiefs during a fire station open house on his comments that it's best to let battery fires burn out then the try to extinguish. That is they going in position on any battery type fire.
In the US, I think the UL requirement for e-bike/scooter/wheelchair batteries is reasonable --particularly for multi-unit dwellings. Enforcing that is problematic, though, when Amazon or Aliexpress will ship cheaper non-UL replacements.
Related: Don't get them wet....
National Fire Protection Association:
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