A battery system, comprising: a plurality of battery cells; a buck converter, comprising a first input terminal, connected to a first potential provided by the plurality of battery cells, a second input terminal, connected to a feedback circuit, which comprises a second switching element connected in series to a first resistor, a third switching element connected in series to a second resistor, and a third resistor connected to the second input terminal, a third input terminal connected to a timer circuit, an output terminal, adapted to output an output voltage and connected to the third resistor of the feedback circuit; wherein the second switching element is adapted to electrically connect the second input terminal to a second potential of the battery system, and wherein the third switching element is adapted to electrically connect the second input terminal to the second potential of the battery system; characterized in that, the battery system comprises a battery management circuit, connectable to the output terminal via a first switching element, wherein the timer circuit is adapted to alternatingly open and close the second switching element with a predefined frequency (f 1), causing the buck converter to provide for an alternating first output voltage (V 1). a plurality of battery cells; a buck converter, comprising a first input terminal, connected to a first potential provided by the plurality of battery cells, a second input terminal, connected to a feedback circuit, which comprises a second switching element connected in series to a first resistor, a third switching element connected in series to a second resistor, and a third resistor connected to the second input terminal, a third input terminal connected to a timer circuit, an output terminal, adapted to output an output voltage and connected to the third resistor of the feedback circuit; wherein the second switching element is adapted to electrically connect the second input terminal to a second potential of the battery system, and wherein the third switching element is adapted to electrically connect the second input terminal to the second potential of the battery system; a first input terminal, connected to a first potential provided by the plurality of battery cells, a second input terminal, connected to a feedback circuit, which comprises a second switching element connected in series to a first resistor, a third switching element connected in series to a second resistor, and a third resistor connected to the second input terminal, a third input terminal connected to a timer circuit, an output terminal, adapted to output an output voltage and connected to the third resistor of the feedback circuit; wherein the second switching element is adapted to electrically connect the second input terminal to a second potential of the battery system, and wherein the third switching element is adapted to electrically connect the second input terminal to the second potential of the battery system; characterized in that, the battery system comprises a battery management circuit, connectable to the output terminal via a first switching element, wherein the timer circuit is adapted to alternatingly open and close the second switching element with a predefined frequency (f 1), causing the buck converter to provide for an alternating first output voltage (V 1). the battery system comprises a battery management circuit, connectable to the output terminal via a first switching element, wherein the timer circuit is adapted to alternatingly open and close the second switching element with a predefined frequency (f 1), causing the buck converter to provide for an alternating first output voltage (V 1).