UL9540A certification and UL9540 standard it is a safety certification standard for battery energy storage systems, and the two are extremely easy to be confused, but there are the following differences between them:
different scope of application: UL9540 standard suitable for energy storage systems, while UL9540A certification focuses more on battery energy storage systems. UL9540A certification requires that products must use lithium-ion or lead-acid battery technology.
Certification standards are different: UL9540 standard the main focus is on the overall safety of the energy storage system, including the controller, inverter and cable, while the UL9540A certification pays more attention to the safety of the battery and the battery management system, such as the thermal runaway and overcharge of the battery.
The certification process is also different: in order to obtain UL9540A certification, Enterprises need to first apply for UL9540 certification, and on the basis of passing UL9540 certification, and then conduct additional testing and evaluation to ensure that it meets the requirements of UL9540A certification