Warning over vape battery fires that could be 'fatal' after worrying rise in West Midlands Yahoo News UK Electronic cigarettes and vape pens: the unknown dangers > Air Force Safety Center > Article Display Vape batteries can overheat if they're left charging for too long and that could cause a lithium ion battery fire. These types of fires are on the rise and some have been fatal. # The Dangers Of Leaving Your Vape Charging Unattended Vape pen explosion: how dangerous are e cigarettes? The Week Vape battery sparks fire in Boise parking lot, highlights lithium disposal risks ktvb.com