2 Protection Against Shutdowns
You probably remember Batterygate. While that fiasco was controversial among users because of the company’s lack of transparency, the underlying power management system that Apple implemented was a generally good idea.
Put simply, it protects against random shutdowns during times of peak load when your battery is aged or degraded. In iOS 12.1, Apple has added the power management mechanism to its iPhone 8, iPhone 8 Plus and iPhone X handsets from 2017.