#1 Can I leave my Sonicare on the charger between brushings?
Yes, you can always keep your Philips Sonicare toothbrush on a plugged-in charger. This will not affect the battery lifetime.
#2 Will other brush heads fit my Philips Sonicare toothbrush?
All Philips Sonicare electric toothbrush brush heads that snap on will fit your toothbrush. However, not all can be used for BrushSync technology. You can identify the brush heads with BrushSync technology by the icon at the base of the brush head.