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 01:10 AM

Reply
3 replies

Jan 31, 2024 05:26 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.


This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

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

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.