ULC 2271 2023

These requirements cover electrical energy storage assemblies (EESAs) such as battery packs and combination battery pack-electrochemical capacitor assemblies and the subassembly/modules that make up these assemblies for use in light electric-powered vehicles (LEVs) as defined in this Standard. This Standard also covers a battery management system (BMS) that provides protection and control for the EESA.
This Standard does not evaluate the performance or reliability of these devices.
This Standard does not include requirements for the evaluation of EESAs intended for use in electric vehicles, such as on-road passenger vehicles and motorcycles intended for use on public roadways including highways, and starter batteries and heavy duty off road vehicles such as battery powered ride-on industrial trucks, earth moving or construction equipment, which are covered under the Standard for Batteries for Use in Electric Vehicles, UL/ULC 2580.
This Standard does not include requirements for evaluation of EESAs intended for use in stationary and motive auxiliary power applications, which are covered under the Standard for Batteries for Use in Stationary and Motive Auxiliary Power Applications, UL 1973.
These requirements do not cover equipment for use in hazardous locations as defined in the National Electrical Code, NFPA 70.