We had a shorted phone battery go off into our workshop. It wasn't fun and we had to evacuate and vent the place for an hour. The smoke is awful. It's best to

We had a shorted phone battery go off into our workshop. It wasn't fun and we had to evacuate and vent the place for an hour. The smoke is awful. It's best to have a metal bucket of water and a metal shovel to throw the thing inside the bucket and take it outdoors. Easy outdoor access is needed. Using other non igniting chemistries like LiFePo shall mitigate the dangers. LiIon/Poly is too dangerous, to the point that it will get banned as soon as there is a safer replacement.