Reusing Disposable Vape Batteries Becky Stern 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 Got a vape? Don't bin it. Reusable and disposable vapes contain lithium ion batteries that can cause fires if thrown in the bin. Make sure you: Buy from trusted sources Follow Picking up Free Lithium Cells Off the Street and Making them Safe for Use atomic14 Can you take Disposable Vapes on an Airplane? Do Disposable Vapes Have Lithium Batteries BOOST!