Not 18650 but related. Recently I've been salvaging li ions from disposable vapes. Usually they are between 2.6 and 3.3v depending on how long it's been sitting. This one was at 1v. Phones, vapes, laptops, e scooters and other devices containing Li ion ( lithium ion) batteries can cause fires if not properly used, charged or maintained. Don't leave Li ion devices charging overnight. Don't let Li ion devices get Rokin Pillar Digital 510 Cart Battery VPM.com Yocan x Wulf Mods Kodo 510 Thread Cart Battery KING's Pipe lithium ion batteries are inserted in the vape. batteries for vape. The concept of care and repair of electronic devices for vaping. background for va Stock Photo Alamy Vape Batteries: A Complete Guide E Cigarette Direct