Configuring the bq27010/210 for Gas Gauge Applications

Accurate performance of the bq27x10 gas gauge requires that the 10 user-configurable EEPROM coefficients be programmed to values that reflect the appropriate host system and battery characteristics. This application report provides the basis for determining the optimal EEPROM coefficients from the host system operational characteristics and battery characterization data. Appendix A specifically addresses how to determine the EDV1 threshold compensation with load and temperature from battery characterization data. Appendix B shows how to determine the capacity compensation with load, temperature, and age from battery characterization data.