Solutions for Samsung Galaxy S4 Charging and Overheating Issues [Part 1]
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
Why is My Samsung Galaxy S4 all of the sudden draining so quickly - Android Forums at AndroidCentral.com
How to Fix Bad Galaxy S4 Battery Life After Lollipop
Samsung's Galaxy S4 beats Apple's iPhone 5S for battery power | Daily Mail Online
How To Fix Boot Up/ Battery/ Power Problems on Samsung Galaxy S4 [Part 1]