How to Replace iPhone 4 and iPhone 4S Battery: EveryiPhone.com
iPhone 4 Battery
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
OEM Apple iPhone 4S Battery - ETrade Supply
iPhone 4 Battery Replacement Part – Repairs Universe