SEMCO HYNN pack testing system integrates pack EOL equipment with energy saving equipment, of high compatibility, reliability, and stability. The data acquisition system collects data for voltage and temperature of a single battery module, as well as the total current and total voltage. The collected data is stored at a special database and the system proceeds data statistics, analysis and report generation. To provide effective test data and accurate performance parameters for battery module product offline detection, and simultaneously to determine whether the module is qualified for production. To provide test basis for the effective management of battery modules assembled into PACK. Test data can be uploaded to the factory MES system.