If you don’t see a battery icon on your Windows 10 taskbar, it may be hidden or disabled. The icon should appear in the Windows notification area, next to the time and date. If the battery icon is missing in Windows 10, try these methods to restore it.
How to Fix the Problem of Battery Icon Not Showing in Taskbar (Windows 10/8.1/7)
If you don't see a battery icon, first check to see if the icon is hidden.
Select the up arrow to the left of the system tray to reveal the hidden icons in the system tray. If you can see the battery icon there, continue with the next steps. Otherwise, try the next method.
Right-click an unused area of the taskbar to open the menu. Select Taskbar settings.