A circuit carrier is configured to be mounted to a battery system. The circuit carrier includes a circuit carrier board having a first region, a second region, and a third region. The first region is configured to receive a shunt resistor, the third region is configured to receive further electronic components, and the first region and the third region being separated from each other by the second region. The second region is a flexible connection between the first region and the third region and includes a spring-like structure formed from the circuit carrier board.