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this post was submitted on 05 Sep 2023
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I’m all for bashing Tesla. It’s good fun. But this applies to all EVs and lithium ion batteries that came into contact with salt water.
Bad TechSpot! Bad!
I wonder if a laptop would blow up, too. Probably, right?
Depends how well the battery is packaged. Here's a cheap disposable AA lithium battery dropped in a bowl of water - it bursts into flames almost instantly:
https://youtu.be/cTJh_bzI0QQ?si=dgkKYSqo-zXulNt_&t=345
However they had to disassemble that battery. If you just dropped the undamaged battery in the water nothing would've happened.
So - this really is Tesla's fault. They should be wrapping a water tight barrier around the batteries. It's one thing for a battery to catch fire after a serious crash. Fair enough. But it shouldn't happen in floodwater.
One of the YouTubers I watch, Tavarish, is rebuilding a flooded McClaren. McClaren went to great lengths to water proof the car (IIRC almost all the connectors for the electrical harness and many of the other cables/wires in the car were all fine). The car is an engineering marvel and it still had damage done to the battery and almost every inch of the car had water intrusion.
Not disagreeing with you but salt water tends to fuck shit up. Maybe a better solution is some kind of system with a series of sensors and other inputs that could disable the battery until it's checked out? Or maybe better education on how dangerous lithium batteries can be.
He does find some other worrisome things when going through that car.