... 3.1 year warranty time For smartphone battery HTC G6 EVO 4G,rechargeable battery,replacement batteryType: Li-ion Voltage: 3.7V ... protection.Fit smartphone models: AT&T HTC Tilt 2, HTC EVO 4G, HTC Hero (Sprint), HTC Imagio, HTC Ozone, HTC Snap ... , ATC, REACH, ISO9001:2000, ISO14001:2004 For smartphone battery G6 EVO 4G