The Marquardt Group is utilizing its extensive expertise in battery management systems to introduce innovations in the realm of hydrogen fuel cell systems. This development will be highlighted at the Battery Show Europe in Stuttgart. Marquardt is adapting functions from battery management systems to fuel cell systems, noting similarities in hardware components that allow for scalability across different applications. The Cell Voltage Monitoring System and High-Voltage Sensor are key components that enhance the efficiency and safety of fuel cell stacks by monitoring cell values and ensuring rapid disconnection from high-voltage batteries. Additionally, Marquardt offers H2 leakage and water level sensors, crucial for safety in hydrogen systems, with applications in heating systems, electrolysis, and drive systems. These sensors provide real-time data and facilitate contactless level measurement for water tanks. Marquardt's innovative components aim to optimize the performance and reliability of fuel cell systems while maintaining a cost-effective approach through synergies with battery technologies.