Listen especially to the end of that video.
Not only no BMS, but also no coolant, for which the Tesla pack was designed.
I presume it was (over) charging the cells when it went into runaway,
turning the cells into something resembling live ammo (per the question
from the FD).
Saw the burning cell bounce off the front of the fire truck?
Cor.

On Mon, Dec 3, 2018, 7:51 PM Jay Summet via EV <ev@lists.evdl.org wrote:

> Video of a pair of 444-cell Tesla modules going into thermal runaway
> after being used to replace lead acid batteries.
>
> It had no BMS on it (I suspect it was charging when it burst into flames).
>
> They have video from the surveillance camera system and it's quite an
> impressive show....
>
>
> https://hackaday.com/2018/12/03/fail-of-the-week-how-not-to-electric-vehicle/
>
>
> Jay
> _______________________________________________
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