[Zenfone/Zenpad] How to display the Battery Percentage? (Android 7 and below)
Please follow the below steps：
1. Slide down from the top of the home screen to open the Quick Setting menu, then click the Settings icon.
2. Select Battery from the Settings menu.
3. Tapat the top-right corner > Check the Show battery percentage.
4. Then you will find the battery percentage showing at the top tool bar.