Battery of iPhone 7 with ios 15.8.1 drains so fast within 10-15 minutes (10-15%)

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Battery of iPhone 7 with ios 15.8.1 drains so fast within 10-15 minutes (10-15%)

i have just purchased a secondhand iphone 7. the battery has already been replaced before i bought it so it's at 100% health. however, the battery drains so fast with little use. i checked in the battery section and seeing that apps are only being used for minutes at a time, yet the battery drops way too much, way too quickly.

i get that it's an old phone. but i wasn't expecting it would be this bad. does anyone know what to do?

iPhone 7

Posted on Jan 31, 2024 1:10 AM

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Answer 1

Top-ranking reply

mulgrum

Level 1

8 points

Feb 25, 2024 8:58 AM in response to adammcadam

I’m having the same issue. I just forced a restart and my meter jumped to 93%, which is where I would have expected to be. Does anyone else think this is a bug with the meter rather than a draining battery?

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Answer 2

Ingo2711

Level 9

73,275 points

Jan 31, 2024 2:05 AM in response to adammcadam

If you tap on "Show Battery Usage" you should see, which app is using up your battery life.

Did you already force restart your iPhone after the latest iOS update?

Force restart iPhone - Apple Support

Has the battery been replaced by Apple or an Authorized Apple Service Provider?

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Answer 3

adammcadam Author

Level 1

5 points

Jan 31, 2024 5:26 PM in response to Ingo2711

Okay so weird thing is, the Battery Usage info is just a "-". i've force restarted the phone but it's not showing. below is a screenshot of the battery usage on the same day i've screenshotted the first image. Though actually, the whole Battery Usage information is just "-" for the whole day. any idea why this is happening?

And i have no idea where the battery was replaced. got this phone from an online store that accepts and reselss a bunch of secondhand phones.

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Battery of iPhone 7 with ios 15.8.1 drains so fast within 10-15 minutes (10-15%)

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