How much battery charge you have left in your smartphone is an important indicator of whether the device needs to be charged or whether you can still wait a bit. For the Samsung Galaxy S8, you can view the battery performance as a percentage in the status bar as follows:
Battery indicator in percent within the status bar
- Open the app menu and then the Android system settings
- Navigate to "Device Maintenance" and then in the menu bar below "Battery"
- In the upper-right corner, touch the three-point icon and tap Advanced Settings.
- Here you see the option "remaining battery charge" and further "status bar display in%"
- Select the option
You will now see the battery level in the status bar of your Samsung Galaxy S8 in a percentage view. This should help you to identify when the smartphone needs to be recharged.