Samsung Galaxy S4 Active (I537) - Battery life - AT&T
Korean Press Shocked at Samsung's Galaxy S4 Sales Disaster - Patently Apple
Abysmal battery life on Gear S4. Look at the percentages that have been used and my current percentage, as well as how long it's been since last full charge. This doesn't add
Strange Battery Drain Problem with Samsung Galaxy S4 (I9500) | Android Central
Galaxy S4 battery saving tips: 6 ways to increase your battery life | nextpit