The battery pack simulation high-altitude test box is mainly used to simulate and evaluate the safety performance of PACK-level battery packs and systems under vacuum and low pressure (ie, high altitude). The battery pack high-altitude testing machine simulates that the battery is placed in a low-pressure box, and the air pressure in the test box is adjusted to an altitude of 4000m or the same altitude. , automatically keep the air pressure in the box constant, and realize the automatic termination of the test. Present the actual use of battery packs or systems in the laboratory, find and solve problems, optimize product design, and improve product quality.