I've been salvaging these disposable vapes for the 3.7v 500mAh lithium batteries inside. They can be used to power small electronic projects with the appropriate charging circuit and voltage converter. : r diyelectronics Reusing Disposable Vape Batteries Becky Stern Vape battery project ideas : r diyelectronics Hosting a WebSite on a Disposable Vape :: BogdanTheGeek's Blog I got a bag of e waste disposable vapes destined for the garbage. But I knew there were rechargeable lithium ion batteries inside them, so I opened them up to extract the cells., Out of seven used Upcycling disposable vape batteries into a rechargable powerbank : r Anticonsumption