Zhongzhi Testing Instruments' intelligent battery pack high and low temperature cooling tester uses Bitzer low temperature refrigeration compressor and Siemens PLC controller, built-in variable frequency circulation pump, digital pressure, temperature, flow sensor, imported refrigeration components, easy to operate, convenient and applicable. It is used for supporting battery pack charge and discharge test, battery pack thermal performance test, battery pack liquid mechanical performance test, battery pack reliability test, etc.