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IOS 15.3.1 drain my iPhone 8 battery

Updated my iPhone 8 to IOS 15.3.1 yesterday and this morning found out the iphone battery was drained and shutdown. When I put it on charger and turned it on, the iphone show 10% of battery.


Then I charged the iphone battery to 100% and use it for couple of minutes, the iphone shut down again as if it is running out of battery. When I turned it back on again it show my battery from 100% to 10% and it's repeating the same thing every time. This mean I can't even use my iphone as it keep shutting down due to drained battery.


Is there any solution or I've to wait until the next ios update.

iPhone 8

Posted on Mar 5, 2022 3:34 AM

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Mar 12, 2022 2:33 AM in response to Aburningstariv

Aburningstariv wrote: "...The 2nd iPhone 8 running on 15.3.1 will not even show a battery percentage on ANYTHING other than an OEM battery stripped from an original iPhone 8..."

Presumably the changes in iOS 15 are to avoid possible negative experiences for the user:

"Using nongenuine batteries might also result in unexpected behavior after installation, device software updates, or while charging. Using nongenuine batteries might also lead to safety issues." Source:

About genuine iPhone batteries - Apple Support


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IOS 15.3.1 drain my iPhone 8 battery

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