Not 18650 but related. Recently I've been salvaging li ions from disposable vapes. Usually they are between 2.6 and 3.3v depending on how long it's been sitting. This one was at 1v. The dark side of disposable e cigarettes Tobacco and Public Health How to Reuse Disposable Vape Lithium Batteries : 6 Steps Instructables The vapes we throw out could be powering thousands of EVs An engineer has gone viral after collecting around 500 discarded disposable vapes and repurposing their lithium ion batteries to power his entire home. What most people see as trash turned out to be Can lithium batteries from disposable vapes be recycled to build battery packs?