This is a high-drain rechargeable battery from the Efest brand, which is suitable for use in hookah or shisha pipes, as well as a range of vaping equipment. The battery has a voltage of 3.7 V, and a current of 20 A. Each one has a capacity of 3,500 mAh, weighs 0.09 lbs and measures 0.87 x 0.79 inches. Made in China, these Efest 18650 batteries come in single packs and have the GTIN 6958946201583.