iPhone 4S Battery Replacement - iFixit Repair Guide
Trick to improve Battery life on Apple iPhone 4S - YouTube
Battery Life - Apple iPhone 4S: Thoroughly Reviewed
Apple Promises iOS 5 Update In A Few Weeks To Suck Less Battery Life | TechCrunch
iPhone 4S Battery Life (Real-World Tests): EveryiPhone.com
Apple Confirms Battery Life Problems Are iOS 5 Related | WIRED
Apple iPhone 4S - Battery life - AT&T
Homemade iPhone 4s battery from a 18650 : r/techsupportmacgyver
Testing the iPhone 4S' battery life - CNET
iPhone 4S: why has standby time dropped? | Technology | theguardian.com
Survey: iPhone 4S owners love Siri, and hate the short battery life – GeekWire
How to Check Battery Health in iPhone 5s, 5, 4s - No Pc - YouTube
iPhone 4S Battery Life Problems Befuddle Apple Engineers, Owners | HuffPost Impact
Don't Download the iOS 8 Update On Your Old iPhone 4S | Time
Battery Life - Apple iPhone 4S: Thoroughly Reviewed
Battery Life - Apple iPhone 4S: Thoroughly Reviewed
![Battery Saving Tips - The iPhone Book: Covers iPhone 4S, iPhone 4, and iPhone 3GS, Fifth Edition [Book]](https://www.oreilly.com/api/v2/epubs/9780133016529/files/graphics/16fig15.jpg "Battery Saving Tips - The iPhone Book: Covers iPhone 4S, iPhone 4, and iPhone 3GS, Fifth Edition [Book]")
Battery Saving Tips - The iPhone Book: Covers iPhone 4S, iPhone 4, and iPhone 3GS, Fifth Edition [Book]
Survey: iPhone 4S owners love Siri, and hate the short battery life – GeekWire
Battery life | Apple Wiki | Fandom
iPhone 4S Battery Life Worse for 3G Data and Media as Compared to iPhone 4 - MacRumors
![Apple iPhone 4S battery test is complete, here go the results [TEST]](http://cdn.gsmarena.com/pics/11/11/iphone-4s-battery-life/gsmarena_002.jpg "Apple iPhone 4S battery test is complete, here go the results [TEST]")