UL 1973: Standard for Batteries for Use in Stationary, Vehicle Auxiliary Power, and Light Electric Rail Applications

UL 9540A: Test Method for Evaluating Thermal Runaway Fire Propagation in Battery Systems

UN 38.3: transport safety requirements

Copper is actively collaborating with UL to update the 858 standard to formally incorporate batteries. In the meantime, Charlie has passed the applicable protection and performance safety tests of the existing UL 858 standard.