Hydrogen fuel cells hold promise for electric mobility's future, particularly in commercial vehicles. Fraunhofer researchers are tackling the challenges of implementing these cells by enhancing efficiency and reliability. The 'multiPEM' project focuses on evaluating fuel cell stacks under diverse stress factors, including mechanical, thermal, electrical, and chemical loads. By introducing new analysis techniques like vibration and pollutant assessments, computer tomography, and microstructure analysis, the project aims to boost fuel cell system reliability. Fraunhofer LBF experts are working on test methods to swiftly evaluate system reliability in the lab, independent of the complete vehicle, through a blend of experimental tests and simulations. The emphasis is on scrutinizing the impact of vibrations on fuel cell stack reliability and devising enhancements, including novel testing methods on shakers. Interested parties in the mobility sector are invited to an online event on April 15, 2025, where Fraunhofer researchers will present the latest findings from the project.