Advances in Lithium ion Battery Technology and the Evolution of Rechargeable Vape Devices The dark side of disposable e cigarettes Tobacco and Public Health Vapes use lithium ion batteries, and leaving them plugged in once fully charged can be a fire hazard. You shouldn't leave vapes charging unattended, or while you're asleep or for that matter An engineer went viral after salvaging lithium ion batteries from roughly 500 discarded disposable vapes and using them to power his home. What looked like everyday trash turned into a functional energy storage Disposable Vape Pens, The Next E Waste Nightmare The Handbuilt City