iPhone 15 battery: When to replace and use authentic?

Good morning, at which percentage is it recommended to change a battery on an iPhone 15? And is it wiser to put an authentic battery?

Thank you

iPhone 15, iOS 26

Posted on Mar 16, 2026 12:39 AM

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Posted on Mar 16, 2026 1:42 AM

people report apple does not change the batteries until they are lower than 80% in health

and they advice you change it when it's lower than 80%

Apple Service and Repair for iPhone Battery - Apple Support


I've been let to believe that if you put in a not "authentic" device into an ios device then apple will never offer to repair the devices for any reason after that.


1 reply
Question marked as Top-ranking reply

Mar 16, 2026 1:42 AM in response to ArthurChris

people report apple does not change the batteries until they are lower than 80% in health

and they advice you change it when it's lower than 80%

Apple Service and Repair for iPhone Battery - Apple Support


I've been let to believe that if you put in a not "authentic" device into an ios device then apple will never offer to repair the devices for any reason after that.


iPhone 15 battery: When to replace and use authentic?

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