First of all, I have to admit that, as the owner of apple, my iPhone’s battery life is really bad. When I play four or five games, my friend’s Android 4500 Ma battery still has 60% of its power, while my apple has only 40% of its power. The battery life experience is not as good as that of the Android midrange, let alone the flagship. < / P > < p > although some people on the Internet also use the actual measurement and comparison, and find that the iPhone 11 series has a good endurance, but for the game loving users, the iPhone’s endurance optimization is really ordinary, and real apple users should have such experience. Then, there is a question, apple mobile phone has a general life, why not use a high-capacity battery life? < / P > < p > first of all, the space utilization rate of Apple mobile phone is very high. In order to ensure the experience, Apple has added many complex components, such as large area vibration elements, super large volume linear motor, face ID, etc. < / P > < p > secondly, Apple’s battery after-sales service has added a security function in the IOS system upgrade in 2019. When the system detects that the battery is not replaced in an official authorized store, it will issue a warning in the system to block the inquiry function of battery health. < / P > < p > in addition, MFI certification is Apple’s huge profit point for third-party accessories. Apple’s annual revenue from MFI certification alone has reached hundreds of millions of US dollars. If we choose high-capacity batteries, the failure frequency of data lines will be reduced. In addition, Apple’s official smart battery case uses external accessories to extend the iPhone’s service life, and the official price ranges from 778 yuan to 1071 yuan according to different models. As a result, there are more reasons why Apple does not use high-capacity batteries. A large part of the reasons are that the volume space is too much, and there are many interest issues involved, which eventually leads to the result. American companies begin to give up R & D: who should pay for corporate research?