Freudenberg E-power Systems develops and manufactures fuel-cell and battery systems for heavy-duty mobility. The portfolio spans PEM fuel-cell stacks and complete fuel-cell systems, lithium-ion battery modules and packs, and hybrid powertrains that combine hydrogen fuel cells with batteries. Offerings target buses, trucks, rail vehicles, and marine vessels that operate on demanding duty cycles. Engineering and services include system integration, application-specific design, validation and testing, commissioning, and field support. Battery management, thermal control, and diagnostics software help manage performance, safety, and lifecycle. The company also supports projects with training, spare parts, and long-term service agreements.