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 How to Reuse Disposable Vape Lithium Batteries : 6 Steps Instructables The rise of disposable vapes has fueled a growing e waste crisis, with millions of lithium ion batteries ending up in landfills and recycling centers, creating environmental and fire hazards. Fire Rover's 2024 report Why vapes are one of the most dangerous electronic items passengers take on planes Vapes and e cigarettes are not accepted Vape Battery Fires Risks in Waste Facilities Explained