The aircraft Ni-Cad battery manufactured by Sichuan Changhong Battery Co., Ltd., with the characteristics of high specific power, high specific energy, low internal resistance, long service life, strong mechanical property, wide operation ambient temperature range, are mainly used as on board emergency starting power supply or on board back up power supply on the plane. This type of aviation Nickel Cadmium battery is widely allocated on Boeing and Airbus airplanes.