[egberts1]

Takes up to 3,000 gallons of water for a 600lbs Lithium ion battery that has caught on fire.

Most promising put out of EV fires is “dunking” the EV: erecting a portable tank wall around the EV on fire and pouring water into it.

Dunking helps to contain environmental spread of 7,000 cells of chemicals. Unfortunately, dunking doesn’t work everywhere (ie, ravine, ditch, pileups, uneven ground).

https://www.firehouse.com/operations-training/article/212550...

[djmips]

For the uneven ground case, if it's not too far gone, say just smoking yet, then moving it first seems a viable option.