Apple has discovered that the algorithms that calculate battery health sometimes start measuring errors on Iphone 11, Iphone 11 Pro and Iphone 11 Pro Max. Therefore, the company has developed a calibration function that will be included in iOS 14.5.
In a new one support document which is already out, even though the update is still in beta testing, Apple writes that the calibration will start automatically after you update to iOS 14.5, and may take a few weeks.
If you have previously had a message that the battery is degraded and needs to be replaced, it will be removed, and instead a message will appear stating that iOS is calibrating the battery health system.
In some cases, the result after a few weeks may be that the calibration fails. In that case, you will receive a notification about it, and that you can contact Apple or an authorized workshop for a free battery replacement.
Apple also writes that if your iPhone’s standard warranty, Applecare Plus or warranty expires soon and the phone has started the calibration, it will be extended so you can wait until the calibration is complete and still receive service.
Customers who have paid for a battery replacement after receiving a warning message that it is needed are asked to contact Apple Support for compensation.