1) No one has said that you can’t use anything
2) Search for “explode” or “exploding” using the forum tool and come back up here to tell us all just how many threads you found and what you learned.

I would also suggest that you lobby overseas manufacturers up here to produce protected battery capable lights should someone you love experience the same catastrophe using unprotected cells with “one is none” safety backup systems (LVP circuits) from questionable sources. I’ll leave where you purchase them to your own wisdom and financial considerations.