6% iPhone battery decrease in a month

My iPhone 12 is relatively new, gotten around late January/early February.


On February 5th, I checked the maximum capacity for the battery and it was at 92%. Then now, on March 5th, it is at 86%. Is this an issue? Should the maximum capacity be dropping like that after just a month, and is there anything I can do?



[Re-Titled by Moderator]

iPhone 12, iOS 17

Posted on Mar 5, 2024 04:43 PM

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Question marked as Top-ranking reply

Posted on Mar 5, 2024 05:57 PM

My iPhone 12 is relatively new, gotten around late January/early February.


The iPhone 12 was discontinued in September 2023, so even if your phone was one of the last off the production line, the phone is still 6+ months old and as much as 3 years old depending on when it was placed into service.


If the phone really was "new" when you purchased it in "late January/early February", the Maximum Capacity would not have dropped 8% by February 5th, and another 6% in just one more month.


Things just don't add up here.


Either the phone is really nowhere near as "new" as you thought.....or.....if it is.....the battery is defective and you would want to make an appointment at the Apple Store or take the phone to an authorized Apple service shop to get the battery checked out.


You can find a list of authorized shops in your area using the link just below:


Find Locations







3 replies
Question marked as Top-ranking reply

Mar 5, 2024 05:57 PM in response to alezie

My iPhone 12 is relatively new, gotten around late January/early February.


The iPhone 12 was discontinued in September 2023, so even if your phone was one of the last off the production line, the phone is still 6+ months old and as much as 3 years old depending on when it was placed into service.


If the phone really was "new" when you purchased it in "late January/early February", the Maximum Capacity would not have dropped 8% by February 5th, and another 6% in just one more month.


Things just don't add up here.


Either the phone is really nowhere near as "new" as you thought.....or.....if it is.....the battery is defective and you would want to make an appointment at the Apple Store or take the phone to an authorized Apple service shop to get the battery checked out.


You can find a list of authorized shops in your area using the link just below:


Find Locations







Mar 5, 2024 05:30 PM in response to alezie

The standard iPhone 12 was first sold in 2020 and discontinued about 6 months ago. At worst, it’s a 3-year-old device. So, the phone isn’t that new. It’s likely the battery is old. If your device was sold by Apple or an authorized reseller, have them take a look and see if the device is under warranty.

Mar 5, 2024 06:12 PM in response to alezie

There isn’t much you can do that I’m aware of. Some factors affecting the battery life may be constantly charging your iPhone ( its best to charge when below 60% and above 40%). Or the spending more than four hours a day on the phone with full brightness and more than one application running. All of these can wear out the battery over time. One of the ways you can fix this is by either turning in smart battery charging in the battery settings or getting the battery replaced.


(This was my first response ever so hopefully it helps!)

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6% iPhone battery decrease in a month

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