Monday, Apr 19, 2021, 11:37 iOS: Software

iOS 14.5 And Battery Recalibration - First Feedback

In the sixth beta version of iOS 14.5, a new feature appeared that attracted quite a bit of attention. Without elaborating, Apple added the option to recalibrate the iPhone's battery. However, this is not an improvement for all users – apparently it is only aimed at owners of the iPhone 11, iPhone 11 Pro as well as iPhone 11 Pro Max. Those who initiate the process are informed that it might take several weeks now. Only then will the system be able to correctly analyze the battery's state. Specifically, it is about the "battery health" - the older a battery gets, the more capacity it loses. In the case of the iPhone 11, however, the determination of the value was not always correct.

iOS 14.5: Feedback on Battery Recalibration
Two weeks after the sixth beta update, there are now first reports of what happens after the battery calibration is triggered. Feedback says that their battery is actually in a better condition again - more precisely, the "Battery Health" display shows a value that is several percentage points higher. Of course, this function does not help older batteries to get a higher capacity, Apple only took care of an error that documented low values. For the user, it then looked like the battery was much weaker than it really was.

Bad battery leads to throttling
However, this could have consequences, because from a certain point, the battery loses the so-called "Peak performance" capabilities from the system's point of view. If the battery is now no longer in good condition, the iPhone's performance sometimes drops noticeably. The system then slows down performance peaks to prevent the voltage from suddenly dropping and the iPhone from switching off unexpectedly.

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A circumstance that has been known for years
Exactly this circumstance, which was not documented when introduced, has led to class action lawsuits for years. While Apple now displays whether throttled performance occurs (system settings under "Battery" and "Battery Health"), this was not yet the case in 2017. It was more by chance that people noticed how older iPhones suddenly lost a lot of performance.

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