Turn down the screen brightness appropriately.
Turning down the brightness of the screen properly can not only save electricity, but also protect your eyes.
Close unnecessary applications.
Go to the "security center", close those applications that don't need to be started, and let the phone go into battle easily. At the same time, close unused applications, remove unused external devices, remember to turn off the data switch when not using the network, and don't turn the volume too loud.
Don't download too many applications.
Try not to download too many applications, and the "slimming" of mobile phones also helps to save electricity.