iOS 13 has a special feature that makes the iPhone battery not fully charged 100%

In the launch of the iOS 13 update, Apple hid a special feature that made the iPhone battery not fully charged 100%, but it could help the battery not age quickly.

Sure, iPhone users still remember that Apple had hidden the iPhone performance reduction to help increase battery life in 2017. When everything broke, Apple explained that it is a feature that helps old iPhones fix the battery problem. It seems like the same thing happened again with iOS 13.

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The new feature on iOS 13 that Apple hides is called the battery charger optimization feature. It uses artificial intelligence to track user usage habits to make decisions on charging levels on the iPhone. If you really use a lot, artificial intelligence will decide to charge the device battery with over 80%. If your habit doesn't cost too much battery every day, it will only charge up to 80% of the battery.

This means your iPhone will not be 100% fully charged by default. However, this helps to reduce the aging process of the battery.

Users can choose to enable or disable this feature in the Settings section.

This feature may sound interesting, but in some cases may cause problems. When the iPhone has a habit of charging only 80% of the battery, the usage time will be limited if you have unexpected jobs to go far.