this post was submitted on 27 Dec 2023
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RealTesla
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That's not helpful.
A Li-ion fire is a runaway exothermic reaction. You need to cool the battery pack below the runaway thermal temperature. Using water to cool the battery-pack and keeping it cool for hours is the best known solution, for now.
If you "only" use a fire extinguisher, you choke out the fire's reaction, and then 5 minutes later the exothermic reaction just continues (the battery is still hot and self-reacting at this point). The reason why water works is that it finally and sustainably cools the battery below the runaway temperature, and keeps the damaged battery pack below that critical temperature.
You can't choke the reaction since it's self oxidizing. Cooling down the reaction is the only way to stop it.
I appreciate the note about the reaction here. Chemistry was my weakest subject back in school. So I'm sure I'm getting lots of details wrong, lol.
But I've also watched what fire-departments are doing and read up on whitepapers / discussions on fire-department tactics. So while my chemical knowledge is probably terrible, I at least know what the fire-departments know and discuss.
Yeah, I've been vaping for like 12 years now (including building my own devices) and have done a ton of research into battery safety and such, so I always try to correct misinformation on posts about battery fires.
I'm sorry you keep getting downvoted because people don't know what they're talking about.