While performing a discharge test, IEEE requires you to measure the individual cell voltages multiple times throughout the test. Using the BITE5 to measure cell voltage gives you the advantage of measuring impedance at the same time. With the extra data gained from impedance testing, you will be able to see which cells are more susceptible to failure, even though they may not have reached their voltage limit during the test. Additionally, with the impedance data from fully charged cells and from cells throughout and at the end of the discharge test, you can develop baseline impedance data. With the baseline data, you will have pass/fail limits for future impedance tests on the tested battery bank, as well as its specific types of cells.