Applied to the safety testing of lithium battery protection boards, it checks whether the various functional indicators of the protection board are within a reasonable parameter range, provides a set of testing standards for staff, helps improve production efficiency, facilitates quality control, and is compatible with common types of protection boards on the market, such as positive electrode same port (split port), negative electrode same port (split port), positive electrode charging and negative electrode discharging. This product is mainly used in production testing, incoming material testing, quality control, research and development testing, and other aspects.