Battery Cell Type: Lithium battery capacity: 10000mAh. Rated Input: DC 5.0V/2A. Rated Output: DC 5.0V 2.1A Max Dimension: 135.7*67.3*15.5mm. Optimized Portability: Light and slim, with easy-grip edges-taking extra power anywhere has never been easier. Massive Capacity:10000mAh high capacity, filled to the brim with power.