Disposable Vape Pens, The Next E Waste Nightmare The Handbuilt City 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 Power banks, e cigarettes, vapes and devices containing lithium batteries have the potential to overheat & catch fire. We are introducing enhanced measures to prevent such incidents onboard our aircraft. Please refer to The vapes we throw out could be powering thousands of EVs