Lifetime improvement by battery scheduling

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    Abstract

    The use of mobile devices is often limited by the lifetime of its battery. For devices that have multiple batteries or that have the option to connect an extra battery, battery scheduling, thereby exploiting the recovery properties of the batteries, can help to extend the system lifetime. Due to the complexity, work on battery scheduling in the literature is limited to either small batteries or to very simple loads. In this paper, we present an approach using the Kinetic Battery Model that combines real-size batteries with realistic random loads. The results show that, indeed, battery scheduling results in lifetime improvements compared to the sequential usage of the batteries. The improvements mainly depend on the ratio between the average discharge current and the battery capacity. Our results show that for realistic loads one can achieve up to 20% improvements in system lifetime by applying battery scheduling.
    Original languageUndefined
    Title of host publicationProceedings of the 27th annual UK Performance Engineering Workshop, UKPEW2011
    Place of PublicationEngland
    PublisherInprint and Design
    Pages56-71
    Number of pages16
    ISBN (Print)978-0-9559703-3-7
    Publication statusPublished - Jul 2011

    Publication series

    Name
    PublisherInprint and Design

    Keywords

    • METIS-277718
    • Battery scheduling
    • EWI-20334
    • Simulation
    • IR-77708

    Cite this

    Jongerden, M. R., & Haverkort, B. R. H. M. (2011). Lifetime improvement by battery scheduling. In Proceedings of the 27th annual UK Performance Engineering Workshop, UKPEW2011 (pp. 56-71). England: Inprint and Design.