In response to the battery life problem, Apple officially responded, "It is normal for the battery life to change within 48 hours after installing the system. During this period, the mobile phone application needs to be adjusted. Users are advised to observe for a period of time. If you have any questions, please contact Apple's official customer service.
For users who haven't upgraded, you can refer to the endurance test of nine old models after the official version of iOS 15.4 was upgraded by foreign "iAppleBytes".
Compared with iOS 15.3. 1, the battery life of iPhone 6S, iphone1and the second-generation iPhone SE has been improved by more than 30%. The battery life of iPhone 7, iPhone 8 and iPhone XR increased by 9 to 14 minutes respectively; The battery life of the original iPhone SE has not changed, and the battery life of Phone 12 and iPhone 13 has decreased by more than 10 minutes.
For those who have upgraded the official version of iOS 15.4, if the power consumption is still obvious after two or three days, you can refer to the following power saving settings. I personally tested it, and the battery life improved a lot.
1. Turn off application background refresh.
Apps that are not frequently used and do not need to be notified from time to time must turn off the background refresh of the app to avoid sneaking into the background from time to time. After closing, WeChat can also receive notification information push normally.
2. Turn off the location service of the App (you can selectively turn it off according to your own needs).
Once any App uses the location service, the power consumption is huge, so the app that doesn't need the location service must turn off the location service, and the app that needs to start the location should be set to the use period.
Functions that are not needed by the positioning system service should also be turned off.
3. Turn off unimportant App notifications and set regular push summaries.
Every message notification will trigger a bright screen, and reducing unnecessary notifications can save electricity. For settings that need to be notified but are not urgent, you can "push summary regularly" and directly close the app that does not need to be notified.
4. Set the screen display to dark mode or automatic mode (you can also customize the time).
Because of the screen characteristics of organic light-emitting diodes, using dark mode will save more power.
5, shorten the screen automatic locking time
Screen display is one of the chief culprits of high power consumption. Shortening the unnecessary display time on the screen can save a lot of electricity.
6. Turn off, lift and wake up gently.
If you find it inconvenient to turn off, remove or wake up, you can turn on "wake up gently" in touch, so you can pick up your mobile phone and click the screen below to light up the screen.
7. Turn on the automatic brightness level.
8. Turn on the gradient dynamic effect (see your own experience)
Weakening the dynamic effect will affect the visual experience of desktop switching and app switching. If you feel uncomfortable, you don't have to open it.
1 1. Turn off automatic update of the App Store.
12, wireless Wi-Fi is preferred.
Wi-Fi is more energy-efficient than cellular data, so when there is a wireless network, priority should be given to connecting to it.
13, using automatic 5G
14, start the low battery mode.
When the battery charge is lower than 20% or cannot be charged for a long time, the low battery mode can be turned on.
15, start the optimized battery charging.
16, close the airdrop the next day.
Although airdrop delivery is easy to use, it doesn't need to be turned on all the time, which not only consumes electricity, but also may receive unhealthy pictures, so it's best to turn it off when not in use.
17. Crawl mail manually or extend the automatic crawling time.
18, Close Analysis Improvement and Apple Advertising
19. Turn off unnecessary gadgets or use the overlay function.
20.[ Yi tooth] [Yi tooth] Shut down directly and give up [Yi tooth] [Yi tooth]