Lithium ion batteries can be flammable and release toxic gases when not used correctly. It's important to check your batteries for physical and electrical damage, exposure to extreme temperatures, and any defects. Up in smoke: Considerations for lithium ion batteries in disposable e cigarettes ScienceDirect How to Reuse Disposable Vape Lithium Batteries : 6 Steps Instructables What Is The Difference Between a Regular Battery And a Lithium Battery? Knowledge 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 Wondering if I should try using disposable vape batteries in a RC car,