Cameron Sino Rechargeble Battery for Huawei Ascend Mate II Type: Li-ion, Volts: 3.8V, Capacity: 3900mAh / 14.82Wh Dimension: 89.57 x 66.61 x 4.33mm, Weight: 100g All Products are Certificated with ISO9001, RoHS & CE 14 Days Money Back Guarantee and 12 Months Warranty