A personal hygiene device has a drive unit, an energy storage, such as a rechargeable battery, a determination unit for repeatedly or constantly determining an energy storage level of the energy storage, and a control unit arranged for providing energy from the energy storage at the drive unit during an on state of the device and for gradually reducing the energy level from a nominal energy level to a first reduced energy level during a first energy level reduction time period when the determined energy storage level has fallen below a first energy storage level threshold but is above a second energy storage level threshold and for continuing provision of the first reduced energy level while the device stays in an on state and the determined energy storage level stays above the second energy storage level threshold.
