Patent ID: 7570018

Claim:
A rechargeable powered toothbrush system comprising: a rechargeable powered toothbrush having a motor and a rechargeable small-capacity battery coupled to the motor, the rechargeable small-capacity battery having a storage capacity sufficient for at least a single average use of the toothbrush and up to a few uses; and a charger electrically coupled to the rechargeable powered toothbrush, the charger comprising a holding unit for the rechargeable powered toothbrush and a large-capacity battery having a comparatively larger storage capacity than the rechargeable small-capacity battery, the large-capacity battery configured for charging the small-capacity battery when the rechargeable toothbrush is coupled to the charger and being retained in a storage position in the holding unit, wherein the charger further comprises an indicator indicating a state of the small-capacity battery, the state including a single use state when the small-capacity battery is charged with sufficient energy to power the rechargeable toothbrush for the single average use and a full charge state when the small-capacity battery is substantially fully charged to an energy level sufficient to power the rechargeable toothbrush for a plurality of the single average uses.