Polarbearboy
Tokin' Away Since 1968
Though it was a tobacco vape, the principle is the same. It appears to be the hard-shell lithium-ion battery, as this is not the first exploding vape.
https://www.washingtonpost.com/news...his-head-autopsy-says/?utm_term=.29c50aec0b3f
https://www.washingtonpost.com/news...his-head-autopsy-says/?utm_term=.29c50aec0b3f