The PS810 is a fuel gauge for one-cell Li Ion or Li Polymer applications. The device provides the host and the system user with critical battery information, such as voltage, current, temperature, run time, State-Of-Charge and State-Of-Health. This information is available through an industry standard SMBus or an alternative Single Pin Serial interface. Advanced fuel gauge algorithms are stored in on-board Flash memory and executed by the industry recognized PIC18 microcontroller. These algorithms include compensation factors which optimize the performance of the battery for a specific application and operating environment. Compensation is included for the effects of temperature, discharge rate, charge rate and battery aging.