How do I charge my Sonicare 9900 Prestige handle on the charging base?

Plug the USB cord from the charging base into the USB wall adapter and plug the wall adapter into a power socket.

Place the charging stand on the charging base.

Place the toothbrush handle on the charger.

Charging has started successfully when the toothbrush beeps twice and the lights illuminate in an upwards motion. While charging, the battery indicator will blink white.

 

Leave the toothbrush on the charger until it is fully charged. The battery light will stop blinking and turn off when the handle has finished charging.

Note: Your handle comes pre-charged for your first use. After first use, charge for at least 16 hours.