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. 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 Best 18650 Vape Battery Guide: Choosing for Your Device Do you know how to dispose of vapes properly? Many contain lithium batteries, which means they can pose a serious fire risk if thrown away incorrectly. Our guide explains how to The vapes we throw out could be powering thousands of EVs