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Diagnose battery drain on your tablet with Windows 8.1's Sleep Study tool - Neowin
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Android system app power consume 35 to 49% Battery drain very fast please help Android version 8.1 - Android Community
Android 8.1 feature spotlight: Android will highlight battery draining apps and what they're doing
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Android Oreo 8.1 will highlight which apps are draining your phone's battery, and why - 9to5Google
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Windows RT 8.1 Battery Drain Issue Fixed By Turning On Bluetooth | Ubergizmo
8.1.2 battery drain (iPhone 6 PLUS) - Apple Community
iPhone 6 Battery Drain Reports Suggest Apple May Have More Bugs to Squash with iOS 8.1.1
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Did iOS 8.1 Reduce Your Battery Life? This May Help | OSXDaily
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Windows 8.1, 10 Battery Drain Reported by HP, Dell, Lenovo and Sony Users
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New feature in Android Oreo will help you combat battery drainage - PhoneArena
