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H55 has successfully completed EASA-approved certification tests for its electric aircraft propulsion battery module, marking a significant step toward the commercialization of electric aviation. The rigorous six-month testing campaign confirmed the safe integration of lithium battery cells into aviation systems, and H55 is poised to receive certification for its Energy Storage System while also pursuing US certification in collaboration with the FAA. The company's batteries are designed to power aircraft such as the BRM B23 Energic and support hybrid-electric programs.