IEC 60335-1: 2020 – Appendix BB-20.1 Battery Case Pressure Testing System Product Details The Battery Case Pressure Testing System is designed for evaluating the mechanical strength and pressure resistance of battery enclosures used in battery-powered appliances with metal-ion chemistry batteries. According to IEC 60335-1:2020 Appendix BB-20.1, this equipment simulates abnormal battery venting conditions by applying controlled internal pressure to verify whether the battery