Connection type: Micro USB (Universal Serial Bus), Universal Cell type: Li-polymer Capacity (m Ah): 7200 Capacity Range (m Ah): 4500-7500 Charging Time (h): 7 Input Voltage (V): 5 Output Voltage (V): output 1:5.3v ;output 2:5.2v Output Current (m A): output 1:1000m A;output 2:2000m A Dimensions (cm): 18 x 9.5 x 4.5 Weight (kg): 0.272