1)18650 Li-ion battery 2)Capacity: 2200mAh 3)Portable, rechargeable and universal power 4)Adopts advanced single-chip Specifications:Battery type: 18650 Li-ion battery Capacity: 2200mAh Input: 5v/500mAh Output: 5v/1000mAh Operation temperature: -10°C---40 °C Storage Temperature: -20---50 Charging time: 2.5 hours High security: protection for overcharge, over discharge, overloading, and short ...