Apple mentioned in a support document that iOS 14.5 will be released later this spring, which includes an update that the battery health report system will recalibrate the largest battery of iPhone 11, iPhone 11 Pro and iPhone 11 Pro Max Capacity and peak performance capacity to solve the problem of inaccurate battery health report estimates encountered by some users.
Symptoms of this problem include unexpected battery consumption behavior and, in a few cases, a decrease in peak performance capacity. Such inaccurate battery health reports cannot reflect actual battery health issues. The maximum battery capacity is determined by a set of algorithms and data measured during battery use. Over time, these algorithms may be updated to provide the most accurate estimate of the maximum battery capacity.
When the battery health reporting system is recalibrating, you will see a message in “Settings”> “Battery”> “Battery Health”. The recalibration of maximum capacity and peak performance capacity occurs during the normal charging cycle.
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This process may take several weeks. During the recalibration process, the displayed maximum capacity percentage will remain unchanged. The peak performance capacity may be updated, but most users may not notice. If the system has previously displayed a message that the battery health status has declined, this message will be removed after the update to iOS 14.5.
After the recalibration is completed, the maximum capacity percentage and peak performance capacity will be updated. The recalibration information will also be removed, indicating that the process is complete. If the recalibration of the battery health report indicates that your battery health has dropped significantly, a battery repair message will appear.
In a few cases, the recalibration may be unsuccessful and a new battery repair message will appear. If this happens, in order to fully restore the performance and capacity of the battery, please go to an Apple-authorized service provider to replace the battery for free. This type of situation does not mean that there is a security problem. Your battery can continue to be used.
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