CSA/ANSI C22.2 No. 340:23

1 Scope 1.1 Inclusions This Standard applies to battery management systems (BMSs) that are composed of hardware and software that monitor, control, optimize, and regulate electrical and thermal parameters such that the battery pack safely operates under specific conditions. A BMS may be equipped with other functionalities including taking actions to avoid hazardous consequences, battery power isolation, and external communication capabilities. This Standard applies to BMSs used with batteries that are installed in accordance with CSA C22.1, Canadian Electrical Code, Part I, in Canada or NFPA 70 in the U.S. in stationary applications (e.g., energy storage systems, uninterruptible power systems, auxiliary power systems) and in power mobility applications (e.g., electric vehicles, light electric rail). 1.2 Exclusions This Standard does not apply to BMSs used with batteries in portable applications for which the end product standards contain requirements for BMSs, such as appliances, machinery, power tools, and consumer electronics. BMSs used in such applications are covered by the applicable end product standard. 1.3 Terminology In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements.