06789026 is referenced by 60 patents.
A processor (
) operates to determine amount of charge presently stored in a battery by determining that the battery is in a zero-current relaxed condition. Circuitry (
) including a first ADC (
) measures an open circuit voltage (OCV) of the battery prior to a period of time during which flow of current through the battery is not negligible. A program executed by the processor correlates the measured open circuit voltage (OCV
) with a corresponding value of the variable and selects the corresponding value as a value of the variable.