Apple confirms poor battery life on iPhone 5s is caused by a manufacturing issue - MobileSyrup
Apple iPhone 5s - Battery Life - AT&T
iOS 9 How-To: Put your iPhone in Low Power Mode & extend your battery life - 9to5Mac
Tips to improve iPhone 5s and iPhone 5c battery life
How to Check Battery Health in iPhone 5s , 5 - YouTube
Don't Run Out of Juice: How to Save Battery Life on Your iPhone | PCMag
Is iOS 7 battery life getting you down? These tips may just help
Battery Life - The iPhone 5s Review
Why does my iPhone 5s battery suddenly drop from 43% to 20% and then 10% suddenly? Is this battery to be replaced or is there something other malfunctioning? - Quora
iPhone batteries compared: Capacity and watt hours for every model | Macworld
Bad Battery Life & a Warm iPhone After iOS 7.0.6 Update? That's Easy to Fix | OSXDaily