How do I know if my Nintendo Switch is charging?

When the AC adapter is first plugged into the console, the LCD screen will power on and the battery charging indicator will be displayed on the upper-right corner of the screen.

Can I charge my switch without the dock?

If you want to keep gaming on the go after that brief amount of time, you’ll need to charge. But you don’t need Nintendo’s Switch dock for that. The Switch charges over USB Type–C, which allows it to be used with portable chargers. The Switch doesn’t include a USB Type-C cable, but you can grab one for cheap.