For apple, the iPhone's biggest short board may be the battery life. The battery capacity is low, which is a hard injury. In order to make up for it, Apple has to find a way in IOS.
According to the latest foreign media report, Apple introduced iPhone in latest version of iOS 13
According to Apple's optimization idea, IOS system should be able to intelligently predict and learn the usage habits of iPhone users, intelligently estimate the remaining available charging time, so as to make up the electricity before users go out and unplug the data line. In other words, once the user's usage habits are understood, iPhone can predict the charging time required for the remaining electricity and display one on the screen Special notice.
If you don't think it's necessary, you can call through the long press -
Only after you use it for a period of time will the time estimation function of optimizing battery charging become relatively accurate, and the notice will be displayed at this time. You need to let IOS learn as much as possible about your charging and battery habits.
Finally, even though the system's default activation time is nightly and is cancelled an hour earlier in the morning, you can still activate it during the day