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Sometimes I go to sleep and wake to find that my battery died, and the iPhone is off. Is there any way to know when the battery died? Is there any way (or App) to know when was it switched off?

I'm using iPhone 4s with iOS 7.0.3.

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  • No it is not jailbroken. It'd be better if there was a way for non-kailbroken phones, as I'm not considering jailbreaking my phone.
    – amyassin
    Commented Oct 28, 2013 at 8:02
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    There is no jailbreak available right now for iOS 7.0.3 anyway.
    – M K
    Commented Oct 28, 2013 at 8:04

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There is no way to easily find out when the phone powered off due to the battery dying. You can, however, get your battery life by charging it completely (till 100%), let it die, then charge to power it up and then going to Settings > General > Usage > Time since last full charge and adding up the times for Usage and Standby.

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  • Good hack.. Only works if I knew when I charged to full last time.. Unfortunately, Most days I screw my battery more by not charging up to 100%...
    – amyassin
    Commented Oct 28, 2013 at 9:45

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