Apple Batteries: Apple 616-0521 - Apple iPhone 4 4G OEM Li-Ion Replacement Battery - CPU Medics
Battery Connector for iPhone 4 : Amazon.in: Electronics
Replacement Phone Battery for iPhone 4 (I4 battery) - China Phone Battery and Replacement Phone Battery price | Made-in-China.com
iPhone 4/4S iPhone 5/5S/SE/5C/5S Battery Replacement Part | eBay
Mobile Phone Battery 1420mah For Iphone 4 Battery 4s Battery Replacement Батарея Для Телефона Original Batterie Bateria - Mobile Phone Batteries - AliExpress