The M-Pencil that comes with Huawei's MatePad Air can be charged in two ways.
The first is to plug the M-Pencil directly into the magnetic charging port on the side of the MatePad Air, and then wait for the charging indicator to light up, indicating that the pen is charging.
The second is to use the wireless reverse charging function of the MatePad Air, the back of the MatePad Air faces the M-Pencil, and then open the \"Settings\" - \"battery\" - \"wireless reverse charging\" function on the MatePad Air screen. The M-Pencil can be charged via the MatePad Air. Either way, after charging is complete, the charging indicator will go off, indicating that the M-Pencil is fully charged.