High Quality, high capacity rechargeable battery. No memory effect. Can be charged or discharged as needed without loss of capacity. Overcharge protection, with built-in battery life microchip. Volts: 3.7V Battery Type: Li-Polymer Capacity: 1200mAh Dimension: 60.12 x 36.30 x 4.96mm Compatible Part nos: CS503759 1S1P Compatible Models: Nevo Q50 Universal remote control