"Battery size: 2400mAh. Talk time: up to 22 hours; standby time: up to 285 hours. Video playback: up to 11 hours; audio playback: up to 65 hours." Those times

"Battery size: 2400mAh. Talk time: up to 22 hours; standby time: up to 285 hours. Video playback: up to 11 hours; audio playback: up to 65 hours." Those times are about the same as an iPhone 5S.