The domestic large aircraft C919 battery pack comes from Changhong, which can withstand the low temperature of minus 40 degrees and the maximum instantaneous current of more than 800 amperes.

CTOnews.com reported on May 28 that the domestic large plane C919 arrived at Beijing Capital Airport from Shanghai Hongqiao Airport today, successfully completing the world's first commercial passenger flight. According to Sichuan Changhong, its subsidiary Changhong Power, as a supplier of Comac of China, has developed the main battery pack and APU battery pack for the C919 aircraft.

▲ source: according to Changhong, the battery pack is the first product in China to obtain a CTSOA certificate, with good low temperature resistance, and can start discharge normally even in a low temperature environment of minus 40 degrees Celsius, continuously providing power for large aircraft. In addition, the maximum instantaneous discharge current of this product can reach more than 800 amperes, which meets the emergency start needs of large aircraft engines, and the comprehensive performance index reaches the international advanced level.

▲ CTOnews.com Note: the battery pack is an emergency power source powered by starting engines and airborne equipment, which requires extremely high reliability and high cost of research and development. For example, the Boeing 787 was grounded because of a shallow GS battery failure. People in the industry believe that the C919 project can better meet the needs of commercial operation of civil aviation by improving the localization rate.