Apple Batteries: Apple 616-0513 - Apple iPhone 4 4G OEM Li-Ion Replacement Battery - CPU Medics
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
Apple Batteries: Apple 616-0521 - Apple iPhone 4 4G OEM Li-Ion Replacement Battery - CPU Medics
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APPLE Original iPhone 4 Battery Replacement Internal For Apple iPhone 4 New | eBay