How do I set up the charging base for the P20 Robot Vacuum?

Assemble the charging base and plug the adapter into a wall socket. Place the charging base against a wall and keep the surrounding space of about 1 meter (3 feet) on either side and about 2 meters (6 feet) in front of the charging base clear of any obstructions. The power indicator will turn on to show good power connection. (Page 7)