CS Cameron Sino 2000mAh Battery for Logitech HRMR15/51 Type: Li-ion, Volts: 12.0V, Capacity: 2000mAh/24Wh Dimension: 75.34 x 54.94 x 33.55mm, Weight: 230.0g All Products are Certificated with ISO9001, RoHS & CE 14 Days Money Back Guarantee and 12 Months Warranty