My Inspiron 5570 has had no power icon in the taskbar for at least a week. Prior to that, it was there. Also, when I unplug my laptop, the screen does not automatically dim, so there may be more going on than a missing icon. When I go to Settings / System / Battery, it shows my battery at 62%. 

I right-clicked on the taskbar, chose Taskbar setting / Select which icons appear on the taskbar and the Power icon was on. How can I solve this? Windows 10 Home 1903.