The system has a monitoring device (160) for detecting and providing a value of a physical parameter of an energy storage arrangement. An evaluation unit (190) evaluates the value, and generates an evaluation result signal based on the value. A transceiver (180) transmits the value to the evaluation unit, and receives the generated evaluation result signal. A control unit (170) is contained in an implant (100), controls a charging device (130) of the energy storage arrangement and the monitoring device and adjusts the charging program based on the evaluation result signal. The physical parameter is battery voltage, charging time, capacitor voltage and charging current.
