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 Lithium ion batteries power many of the devices we use every dayfrom phones and laptops to e bikes and power tools. While they are generally safe, improper use, charging, or storage can increase the Vuse Go Zero Berry Watermelon Disposable Vape Vuse Go Molicel NPE INR 21700 P42A 4200mAh 21700 Battery Authorized Dealer Liion Wholesale Batteries How to Store Vapes to Extend Life & Optimize Performance Repost from @hnl.env: Battery Safety Tip Lithium batteries can cause fires when stored or disposed of improperly! DO NOT DISPOSE IN HOUSEHOLD TRASH! How to prepare your lithium batteries for disposal: Tape