AWLS 18650 3500mAh USB Batteries AWLS rechargeable USB batteries are designed for high drain devices. These are available in 18350 and 18650 sizes. The 18650 fits the AWLS Full Size body along with any other light on the market that accepts 18650 batteries. The internal design provides short circuit protection, over temperature protection and overload protection. These batteries have built in USB charging capabilities along with standard chargers. Batteries are sold in pairs only. CHARGE BEFORE USE KEY ATTRIBUTES Specs for 18650: 3500 mAh 3.6v 12.6Wh 8a continuous discharge USB rechargeable Specs for 18350: 1200 mAh 3.7v 4.44Wh 8a continuous discharge USB rechargeable