UL 1974:2018 Evaluation for Repurposing Batteries.
1.1 UL 1974 covers the sorting and grading process of battery packs, modules and cells and electrochemical capacitors that were originally configured and used for other purposes, such as electric vehicle propulsion, and that are intended for a repurposed use application, such as for use in energy storage systems and other applications for battery packs, modules, cells and electrochemical capacitors.
1.2 This standard also covers application specific requirements for repurposed battery packs/systems and battery packs/systems utilizing repurposed modules, cells and other components.
1.3 This standard does not cover the process for remanufactured batteries, which are also referred to as refurbished or rebuilt batteries.
2.1 Except as indicated in 2.2, a component of a product covered by this Standard shall comply with the requirements for that component. Section 5 includes CSA, UL, and ULC components standards that may be used in the products covered by this Standard.
2.2 A component is not required to comply with a specific requirement that:
a) Involves a feature or characteristic not required in the application of the component in the product covered by this Standard; or
b) Is superseded by a requirement in this Standard.
3 Units of Measurement
3.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or
4 Undated References
4.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be interpreted as referring to the latest edition of that code or standard.
5 Normative References
5.1 The following standards are referenced in this standard, and portions of these referenced standards may be essential for compliance with this standard. It is intended that the application and use of repurposed batteries covered by this standard in an end product shall conform to the applicable installation codes and standards as appropriate for the country or countries where the repurposed battery is to be used.
C22.1, Canadian Electrical Code, Part I Safety Standard for Electrical Installations
CAN/CSA 022.2 No. 0, General Requirements — Canadian Electrical Code, Part II
CAN/CSA-E621 33, Secondary Cells and Batteries Containing Alkaline or Other Non-Acid Electrolytes — Safety Requirements for Portable Sealed Secondary Cells, and for Batteries Made From Them, for Use in Portable Applications
IEC 61982-4, Secondary Batteries (Except Lithium) for the Propulsion of Electric Road Vehicles — Part 4: Safety Requirements of Nickel-Metal Hydride Cells and Modules
IEC 62133-1, Secondary Cells and Batteries Containing Alkaline or Other Non-Acid Electrolytes — Safety Requirements for Portable Sealed Secondary Cells, and for Batteries Made from Them, for Use in Portable Applications — Part 1: Nickel Systems.UL 1974 pdf download.