Brand: Ithink; Cell type: Li-polymer; Capacity Range (m Ah):4500-7500; Input Voltage (V):5; Output Voltage (V):5; Output Current (m A):1A; Dimensions (cm):8.0 x 8.0 x 2.5; Weight (kg):0.175; Capacity (m Ah):6600; Power Display:LED; Compatible With: Universal