Some time ago, Apple just released the official version of iOS 16.2, and this update also added many new features. For example, Apple launched the "Border Record" App, and also added Apple Music singing, lock screen improvement and other functions to iPhone. In addition, Apple has also fixed some bugs.

Although Apple has fixed some bugs in the official version of iOS 16.2, Apple still has some hidden loopholes, such as the battery display problem of the Air Pods charging box.
Recently, many users have reported that after upgrading their iPhone to iOS 16.2 official version, when the iPhone is connected to AirPods, the charging box's battery is displayed as 0, even if the battery is fully charged.

In addition to this bug, many users have recently reported on Apple's official forum that their AirPods Pro 2 charging box has inexplicably lost power. For example, if it is not used, the charging box will lose about 20%-25% of the battery in one day.

In addition, some users also said that their AirPods Pro 2 charging case was fully charged and left for 32 hours, and the battery was only 52% left without using it.

and such problems are basically devices upgraded to 5B58 firmware. Although Apple has not responded yet, I guess this should be a firmware problem.