Cameron Sino Rechargeble Battery for Thompson CPP-519Z3 Type: Li-Polymer, Volts: 3.7V, Capacity: 500mAh Dimension: 31.04 x 26.90 x 5.53mm, Weight: 50.0g All Products are Certificated with ISO9001, RoHS & CE 14 Days Money Back Guarantee and 12 Months Warranty