"What it is: 510 Adjustable voltage battery from Airfield Supply CO. Charger is included. Why We Love It: 510 compatible battery and a USB battery charger, with adjustable temp settings to get your perfect hit just right! Dosing And Potency: 510 Thread. USB Charger Included. Store is cool dry place to avoid damage to connectors, etc. A Bit About The Brand: Airfield Supply Co. (formerly South Bay Healing Center) was created to provide medical cannabis patients with the highest quality cannabis products in a stress-free setting. "