Frequently Asked Questions Are both glass and charger needed for my DiamondClean? The Philips Sonicare DiamondClean toothbrush comes with its uniquely designed charger. The charger consists of both glass and base. Find out if both are necessary. Yes, both the glass and the charger are necessary The glass must be attached to the base to charge your DiamondClean. The base must also be attached to the glass or used with a charging stand.