05-17-2018, 03:32 PM
Bill in NC wrote:
[quote=Racer X]
Probably VERY cheaply constructed 18650 LiIon batteries failing.
18650 would be a little large for a vape pen...
They are big, but that is the type used in some "super" vape pens because they can deliver a high current.
Keep in mind that "competitive vaping" is a thing.