While the main battery supplies electricity to the electrical system under normal conditions, this product is a unit that supplies necessary electricity from the battery pack for ADS under the command of the DCDC converter for ADS (automatic driving system) in abnormal conditions.
A uniquely shaped valve is provided to exhaust air when the internal pressure of the case rises, preventing damage to the case.

It serves as a backup power source for the battery. The case is made of die-cast aluminum and integrally molded, and the electrical circuit is composed of bus bars instead of a substrate to accommodate large electronic components.