How To: Replace the Battery on your iPhone 4s! - YouTube
Apple Iphone 4 & 4S BATTERY REPLACEMENT. Step by step full guide. - YouTube
iPhone 4S gets torn down, reveals slightly bigger battery and Sony camera sensor
How to open iPhone 4 to Replace Battery and Remove SIM Card
Looking inside an iPhone 4/4S battery | Rip It Apart - Jason's electronics blog-thingy
batteries - How can I disassemble an iPhone 4 battery without damaging it? - Electrical Engineering Stack Exchange
Original Battery for Apple iPhone 4 Mobile Battery with 6 Month Warranty and high Capacity Battery Backup.Carefully Check Your Phone Model and Purchase.(for iPhone 4) : Amazon.in: Electronics
Teardown of Apple's iPhone 4S reveals larger battery, new baseband chip | AppleInsider
1420mAh Li-ion Battery Replacement for iPhone 4 – iReplaceParts.com
FliptrOn Mobile Battery For Apple IPhone 4 4G Price in India - Buy FliptrOn Mobile Battery For Apple IPhone 4 4G online at Flipkart.com
Apple Batteries: Apple 616-0513 - Apple iPhone 4 4G OEM Li-Ion Replacement Battery - CPU Medics
Official iPhone 4 / 4S Battery Replacement Video & Instructions - iCracked.com - YouTube
How to replace the iPhone 4 battery | iMore
Get a More Accurate Battery Status - The iPhone Book: Covers iPhone 4S, iPhone 4, and iPhone 3GS, Fifth Edition [Book]