Is the iPhone 4S's battery actually better than the iPhone 4's despite having less standby time? - Quora
Replacing iPhone 4S battery - Hacker's ramblings
How to replace the iPhone 4S battery | iMore
How to replace the iPhone 4S battery | iMore
How to replace the iPhone 4S battery | iMore
How to teardown iPhone4 and turn it into a framed artwork – Xreart
Battery pressure contact for iPhone 4 Bracket ()
How to replace the iPhone 4S battery | iMore
Replacing a dead iPhone battery - EDN
Amazon.com: Ogodeal Battery Replacement for Model IP 4S A1431, A1387 with Full Set Repair Tools Kit and Battery Adhesive Stripe and Instructions [365 Days Warranty] : Cell Phones & Accessories