Impedance Track? devices rely on a fixed open circuit voltage (OCV) table to determine the state of dharge (SOC), where OCV (SOC) dependence is defined by cell chemistry. Impedance Track? devices come preprogrammed to support the most common Li-Ion cells with LiCoO2 cathode and graphitized carbon anode. However, multiple other chemistries are grouped under Li-Ion; two examples of which are Co/Mn oxide cathode cells and Ni/Co/Mn cathode cells. Therefore, Impedance Track? devices are designed with the ability to be programmed with any Li-Ion chemistry OCV table. The process of selecting the correct chemistry OCV table for a particular cell and the specifics of correctly programming this information during production are described in this document.