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iPhone 4 Battery Replacement - iFixit Repair Guide
iPhone 4 Battery Replacement - iFixit Repair Guide
iPhone 4 Battery Replacement - iFixit Repair Guide
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![Get a More Accurate Battery Status - The iPhone Book: Covers iPhone 4S, iPhone 4, and iPhone 3GS, Fifth Edition [Book]](https://www.oreilly.com/api/v2/epubs/9780133016529/files/graphics/14fig15.jpg "Get a More Accurate Battery Status - The iPhone Book: Covers iPhone 4S, iPhone 4, and iPhone 3GS, Fifth Edition [Book]")