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Question: iPhone battery drain when device is off

Hi


After upgrading to the new iPhone X, I retained my older iPhone 6s Plus for backup use. I reset the phone and am on the factory settings. Even on this bare minimum setting, my battery is draining when the device is powered off.


I did a full charge & powered off my iPhone before going to bed. The next morning when I turned on the phone, the battery dropped from 100% to 62%.


Does anyone know why & how does an iPhone battery drain even when powered off?


Thank you.

Peter

iPhone 6s Plus, iOS 11.1, Factory settings

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Nov 12, 2017 3:05 AM in response to trd1707 In response to trd1707

A small amount of discharge can be expected even if the phone is off.


However, the discharge you are experiencing suggests there may be a problem with the battery itself.


Contact Apple Support for a remote diagnosis or better still make an appointment at the Genius Bar for a device evaluation.

Nov 12, 2017 3:05 AM

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Question: iPhone battery drain when device is off