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iPhone 8 Plus 64GB battery drains faster after update to iOS 14.4.2

I own a 2-year old iPhone 8 Plus, 64 GB. I've been putting off the 14.4.2 update for months but I finally updated it one day (at about 10 pm).


That night I went to sleep at 1 am at about 97% but I woke up to its battery discharged to ~50%. Checked the battery usage and found out apps have been running on background. Turned off auto update, auto-brightness, deleted unnecessary apps, restarted the phone.


I was using it the way I normally did and still noticed that the battery still drains faster. That night, I went to sleep with ~40% battery level, woke up to it with ~10%. Normally I can get through a day and a half without having to charge the phone but now I have to charge it within a day.


What do you think is the problem here? I read somewhere that the battery drains faster within 24 hrs of the update, but it's already past that. Please not something about changing the battery because I couldn't afford to change batteries now, money is tight. Would you recommend downgrading to previous iOS?


tl;dr: iPhone 8 Plus still suffers from quick battery drain after updating to iOS 14.4.2, even after doing battery saving techniques

iPhone 8 Plus, iOS 14

Posted on Apr 13, 2021 6:29 PM

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Question marked as Apple recommended

Yes. You can not overcharge any iPhone.

When the health drops to 80% have the battery replaced.

Posted on Apr 13, 2021 6:41 PM

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8 replies

May 9, 2021 1:07 PM in response to LanieT

Due to the shortness of battery use compared to other brand cell phones (Moto G Power, LG, Samsung), I think Apple should include a second battery with every iPhone or a coupon for a second battery - or even sell them for half the price. I would rather Apple work on battery life rather than continually concentrating on a better camera. The camera is useless with a dead battery.

iPhone 8 Plus 64GB battery drains faster after update to iOS 14.4.2

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