“How do you charge the Wii U GamePad?”
You have two options for charging the Wii U GamePad. Using the AC adapter directly plugging it to the wall or using charging dock plus the AC adpater (Deluxe Set only).
Grab the AC adapter for the GamePad and plug the one end to the GamePad and plug the other part into your wall outlet.
For those who bought the Deluxe Set you can use the cradle charging dock. Simply plug the one end into cradle and the other end to the wall. Now your GamePad can sit pretty on the charging dock.
Charging the Wii U GamePad takes approximately 2 hours and 30 min. This ultimately depends on how much charge is left in the battery and the condition of the battery.