This Lithium Ion Battery and charger allows for over 2 hours of un-tethered vaporizing time. The pack recharges your battery in under 3 hours. Made up of premium materials, the battery is able to deliver a charge without getting overheated and can survive continuous use. Take your battery and vaporizer everywhere you go and enjoy endless satisfying sessions. This portable battery exactly what you need for your collection. At an extremely affordable price, make sure to get the Vapolution Vaporizer Battery Old School today.