Smartflyer AG and H55 SA have signed a partnership at Bern Airport during the Electrifly-in Opening. H55 will supply the batteries for Smartflyer’s hybrid-electric aircraft, the SF-1.

Smartflyer CEO Rolf Stuber says: “With H55, we have found a partner who fully shares our vision of innovation, safety and sustainability. H55's advanced battery technology is not only a technical milestone for the SF-1, but also a cornerstone in redefining the future of aviation and accelerating the path toward lower-emission flying.”

H55’s aviation batteries will be the first certified by EASA and surpass expected capacity, giving Smartflyer added performance and flexibility. The agreement also opens the way for integration of H55’s newest batteries into a nose module under development.

H55 CEO Martin Larose says: “What impresses H55 is the strong credibility of the project, underpinned by well-thought-out and truly innovative concepts. Its design, application and production approach are not only smart but also highly efficient, both technologically and operationally.”

H55 European sales manager Axel Doffey says the SF-1 hybrid architecture “offers performance levels comparable to combustion engines while maintaining a clear edge in sustainability.”

The first SF-1 demonstrator is scheduled to fly in 2026.