Replacement Battery for: Corsair CA-9011127-NA CA-9011136-AP Gaming H2100 Dolby 7.1 Wireless Gaming Headset PN Corsair MH45908 100% Compatible with original battery; 180 days warranty Capacity: 1000mAh; Nominal Voltage: 3.7V Battery Type: Li-ion Polymer battery; Safe and reliable battery certified by UL, CE, UN38.3, RoHS Over 300 times cycle life; Long working time