Item Details: Li-Polymer, Voltage: 3.85V, Capacity: 4900mAh/18.87Wh, Size: 107.30 x 73.70 x 4.60mm, Weight: 130.6g.
High quality grade A+ battery, cells ensure longer battery life, high-speed, efficient charging, And Built-in special microchip to prevent overcharging, overheating and short circuit.