As long as the orange light is lit up on the top of the controller, it’s charging. If you’re taking your console with you somewhere, you can still plug the Pro Controller into the dock and allow it to charge while you’re gone. It seems obvious, but we would be remiss if we didn’t point out that you don’t need to keep your Pro Controller near the Switch to charge it. This is also the optimal time for charging your controller. Most people leave the Switch in the dock when it isn’t in use, either turned off or in its sleep mode while it charges. The Nintendo Switch Pro Controller comes with a USB-C to USB-A cable for connecting it to the console’s dock. Keep it plugged in, even without the Nintendo Switch
The Nintendo Switch provides plenty of ways to control your games, including the “traditional” setup with two Joy-Con controllers, just a single Joy-Con, and even a touchscreen, but nothing allows you to play with more precision than Nintendo’s Switch Pro Controller.