You can check your Apple Pencil battery in two different ways, depending on whether you have a first or second generation ...
If your Apple Pencil isn't working, you may need to charge it or reset its connection to your iPad and pair it again.
If you've just bought an Apple tablet for creativity or productivity purposes, you'll want to know how to connect and use an Apple Pencil on your iPad, so you can get scribbling without wasting time ...