Force restart iPhone - Apple Support (GW)
What causes my iPhone to turn off when it appears to have battery left? - Quora
Here's how to tell if your iPhone needs a new battery | ZDNET
How to Disable Apple's Performance Management Features in Older iPhones in the iOS 11.3 Beta - MacRumors
Stop worrying about your iPhone battery health
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iPhone Battery and Performance - Apple Support
When to replace your iPhone battery | Asurion
iPhone Randomly Turns Itself Off with Battery Remaining? This May Fix it | OSXDaily
Apple Serial Number Tool for iPhone Shut Down With Battery Remaining
Apple Agrees To Pay $113 Million To Settle 'Batterygate' Case Over iPhone Slowdowns : NPR
Here's how to check if your iPhone needs a new battery
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How To Fix iPhone 6S Auto Shutdown When Still Has Battery?
iPhone Randomly Turns Itself Off with Battery Remaining? This May Fix it | OSXDaily
iPhone SE unexpected shutdown with 96% Maximum Capacity : r/iphone
Why Your Phone Dies When It Claims to Have Battery Left | Wirecutter
Iphone 6s Randomly Shutdown or turns off - How to Fix - Iphone 6s Shutdown Gate - YouTube
Apple admits slowing older iPhones because of ageing batteries | Apple | The Guardian
