Connection type: Apple 30-pin, Micro USB (Universal Serial Bus), Samsung Cell type: Li-ion Capacity (m Ah): 2600 Capacity Range (m Ah): 2000-4500 Charging Time (h): 4 Input Voltage (V): 5 Output Voltage (V): 5 Output Current (m A): 1000 (Max) Dimensions (cm): 18.5 x 10 x 3 Weight (kg): 0.142