Model: JNF-9900 Connection type: Micro USB (Universal Serial Bus) Cell type: Li-polymer Capacity (m Ah): 2000 Capacity Range (m Ah): 2000-4500 Charging Time (h): 1.5 Input Voltage (V): 5 Output Voltage (V): 5 Output Current (m A): 500 Dimensions (cm): 18 x 9 x 2.5 Weight (kg): 0.089