Simply place BB-8 on it's charging base with its heavy side down. If a charging connection is made, you will see the blue light on the charger blink. It will continue blinking until BB-8 is fully charged, at which time the light on the charger will turn solid blue.
If BB-8 does not seem to be holding a charge, take a look at our "My BB-8 won't hold a charge" article.
If you have any questions or concerns, please follow the link to open a new support ticket.
Or feel free to contact us at your convenience: