How do I charge my Next-Generation Sonicare DiamondClean 8000 - 9900?

 Plug the USB cable of the charging base into a power supply unit.

Place the glass or plastic cover on the plugged-in charging base, then set the toothbrush on top. The battery status screen appears briefly, then switches to a charging icon with a blinking symbol. The toothbrush emits two beeps to indicate that charging has started.

Note: Included accessories may vary by model.

Leave the toothbrush on the charger until it is fully charged. The display will turn off when the toothbrush has finished charging.

Note: It may take up to 24 hours to fully charge the battery, but you can use the Philips Sonicare toothbrush before it is fully charged.