How to save battery on your Android device by changing your display and app settings

1. Open the Settings app and tap "Display." 

2. First, slide the Brightness toggle as far to the left as you can without the screen becoming too dark for ease and enjoyment of viewing. 

Adjust your brightness. 

3. Then, scroll down and tap "Screen timeout" and select the shortest interval you can without annoying yourself. (Hint: a 15-second timeout is going to annoy you — one minute is a better idea.)

4. Now go back to the Settings app and hit "Sounds and vibration." Toggle all unneeded sounds to off, including things like "Screen lock sounds" and "Keyboard sound," and turn off "Vibrate while ringing" as well, as it's redundant.

How to save battery on your Android device by changing your app settings

To take full control of your Android's battery life, it's time to control the way apps function on your phone.

1. Launch the Settings app and tap "Device maintenance."

2. Now tap "Battery" and then opt for a power-saving mode if you don't want to bother with customizing your app restrictions. There are two power-saving modes available, a moderate and maximum option, that will slow CPU speeds, darken the screen, and limit app function by varying degrees.

Apps that are not allowed to run in the background will not be updated until opened. 

3. If you have the time and wherewithal, a better approach is to add apps that you don't want working in the background to the "Always sleeping app" category and shut them down save for during active use.

You can also customize "Always sleeping apps" to save battery.