In this work, the use of a multi-cell testing procedure involving differential voltage analysis, incremental capacity analysis, direct current internal resistance tests, and electrochemical impedance spectroscopy is investigated to reveal differences in cell properties and. . In this work, the use of a multi-cell testing procedure involving differential voltage analysis, incremental capacity analysis, direct current internal resistance tests, and electrochemical impedance spectroscopy is investigated to reveal differences in cell properties and. . The cell characterization in the incoming inspection is an important but time and cost intensive process step. In order to obtain reliable parameters to evaluate and classify the cells, it is essential to design the test procedures in such a way that the parameters derived from the data allow the. . Incoming inspections of battery cells prior to module assembly help to ensure the quality of the battery system and prevent the installation of anomalous cells. Depending on the area of application, identifying deviations in the electrical behavior of the battery cells under test can be essential. . Therefore, before assembling the battery pack, we need to test and sort the battery cells to improve the consistency of the cells as much as possible to ensure that the performance and cycle life of the battery pack produced can meet the design requirements. As a professional lithium-ion battery. . Explore battery quality control techniques used in lithium-ion battery testing, failure analysis, and performance validation across the battery lifecycle. Shiama Thiageswaran is an Assistant Editor at Separation Science. She has a research background in assisted reproductive biotechnology. As. . Current work and research: Design and application development of inspection and analysis system for lithium-ion rechargeable batteries using X-ray technology. Delivers the latest technological insights and development achievements addressing societal challenges. While lithium-ion rechargeable. .