Cause:

Power consumption when using mobile data can vary according to the signal strength and the amount of uploaded and downloaded data. When the signal is poor, the strength of signal transmission and reception is increased, resulting in higher power consumption. When there is a large amount of uploaded or downloaded data, the power consumption is high as well.

Solution:

1. Move to a location with better signal reception.
2. If you need to upload or download a large amount of data, do so over a Wi-Fi network to reduce power consumption.
3. Enable the automatic screen brightness adjustment feature to save battery.
4. Close idle background apps in a timely manner to reduce power consumption.
5. Use the pre-installed browser for web browsing to save battery.