What should I do if Apple's mobile phone locks the screen and consumes fast power?

Apple's mobile phone locks the screen and consumes a lot of power. You can turn off some mobile phone background programs and then turn on the low battery mode of the mobile phone, which can increase the battery life of the mobile phone.

Take the iPhone 7 mobile phone as an example, the operation steps of turning on the low battery mode are as follows:

1. Open the phone, and then click the "Settings" application on the phone desktop, as shown in the figure below.

2. Click the "Battery" option in the settings, as shown in the figure below.

3. Then turn on the switch of "low battery mode", as shown in the figure below.