Model:S4-4200; Cell type:Li-polymer; Capacity Range (mAh):2000-4500; Input Voltage (V):5; Output Voltage (V):5; Output Current (mA):800; Dimensions(cm):17.5 x 9.4 x 3.0; Weight (kg):0.156; Capacity (mAh):4200; Power Display:LED; Features:Battery Cases for Samsung Devices; Compatible With:Galaxy S4 I9500,Samsung