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The Future Flight Standards Hub is designed to accelerate the development of Future Flight demonstrators and wider industry innovation based on emerging best practice, knowledge sharing, and standards support.

  • BSI Flex 1903 v2:2024-06 community preview

    This is an interactive version 2 of BSI Flex 1903. The aim of the standard is to create a lexicon of standard terms and acronyms used in this sector. Please note, content is still undergoing internal review and there may be minor changes at full publication.

    We welcome your engagement and comments on this version to help inform the development of the standard. We would also welcome general feedback including what terms could be considered for future versions and these can be made through our dedicated feedback page .

battery management system (BMS)



  • Definition

    electronic system designed to monitor, manage and control the individual battery cells within a battery system (3.1.32)


    NOTE 1 BMS components include, but are not limited to, cell monitoring sensors, control algorithms, communication interfaces, safety features, and thermal management systems.

    NOTE 2 The BMS is a critical component of the energy storage system (ESS) (3.1.69).

    NOTE 3 While the BMS is focused on the management of individual cells within a battery system, the energy storage system (ESS) (3.1.69) is a broader concept that encompasses the entire system for storing and using energy.

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