Wondering how to test if a battery is small enough to be a choking hazard for children? In this video, we demonstrate the Battery Small Parts Cylinder Tester in action, showing you step-by-step how it's used to assess child safety according to ISO 8124-1 and IEC standards. See real-world testing of button cells and small batteries, learn the pass/fail criteria, and understand why this tool is essential for manufacturers and labs worldwide.