Apple developers do not notice the problem.
On Tuesday, 2 October, Apple released the second beta of iOS 12.1. The update introduces new Emoji, fixed two serious bugs and various minor flaws. But on increasing the battery life Apple developers, it seems, is not going to work. Testing iOS 12.1 beta 2 showed that the autonomy of the firmware is on the same level with iOS 12.
iOS 12.1 beta 2 is a good update in terms of bug fixes. In it, Apple removed the problemwhere the iPhone and iPad could not charge immediately after connecting to the charger. In addition, Apple tracked down and corrected a bug in the App Store, which makes the size of the applications not displaying properly.
But in technical terms, iOS 12.1 beta 2 no improvements noticed. Testing iOS 12.1 beta 2 on various models of iPhone show that the speed of the firmware is identical to iOS 12. The same applies to battery life. It has not changed, although many users expect from Apple’s progress in this direction.
Thus, at the moment to increase the battery life of their iPhone and iPad users have. This can be done with the help described in this statement non-trivial and effective ways. Note that the manual does not call disable any features or keep the power saving mode.