Method of estimating the State-of-Charge and of the use time left of a rechageable battery, and apparatus for executing such a method

Hendrik Johannes Bergveld (Inventor), V. Pop (Inventor), Petrus Henricus Laurentius Notten (Inventor)

    Research output: Patent

    28 Downloads (Pure)


    Disclosed is a method of estimating the state-of-charge of a rechargeable battery, taking into account the factors battery spread and ageing. The method comprises the steps of: determining the starting state-of-charge of the battery by measuring the voltage across the battery and converting this measured value into a state-of-charge value; charging the battery; integrating the charge current and determining the accumulated charge during charging of the battery and adding said value to the starting state-of-charge. Also disclosed is a method for determining the use time left of a rechargeable battery.
    Original languageUndefined
    Patent numberUS20050598038
    Publication statusSubmitted - 23 Feb 2006


    • EWI-19418
    • IR-75778

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