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![Battery Saving Tips - The iPhone Book: Covers iPhone 4S, iPhone 4, and iPhone 3GS, Fifth Edition [Book]](https://www.oreilly.com/api/v2/epubs/9780133016529/files/graphics/16fig15.jpg "Battery Saving Tips - The iPhone Book: Covers iPhone 4S, iPhone 4, and iPhone 3GS, Fifth Edition [Book]")
Battery Saving Tips - The iPhone Book: Covers iPhone 4S, iPhone 4, and iPhone 3GS, Fifth Edition [Book]
iPhone 4 Tips - Battery Saving Secrets - YouTube
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Apple iPhone 4S - Battery life - AT&T
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How To Save Battery iPhone 4s - iPhone 4s Battery and IOS 5 Issues - YouTube
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How to Tweak iOS to Improve the Battery Life of Your iPhone, iPad, or iPod Touch - iClarified
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Why your iPhone battery meter sometimes goes haywire | Mashable
iPhone 4S Battery Life Drain - It's a bug! Improve Battery w/ Simple Fix! - YouTube
iPhone 4S Battery Life
Extend battery life - Apple iPhone 4S - iOS 9 - Device Guides
In depth review: Apple's iPhone 4S running iOS 5 | AppleInsider
Testing the iPhone 4S' battery life - CNET
Battery Life - Apple iPhone 4S: Thoroughly Reviewed
Tips for improving your iPhone 4S & iOS 5 battery life … battery-gate? | AppSafari
