Panasonic is one of the world’s largest manufacturers of lithium coin batteries. Our battery cells are engineered to maintain high discharge performance with our proprietary sealing technologies, including both structure and materials. Our authentic Panasonic lithium battery cells and packaging (in our “sunburst” package as shown) meet or exceed IEC 60086-4:2019; ANSI C18.3M Part 2:2024; CFR 16, Part 1700.20 and CFR 16, Part 1263 as required by Reese’s Law (Pub. L. 117-171, 15 U.S.C 2056e). These button cell batteries are used to power hundreds of small electronic devices including car key FOBs, calculators, watches, fitness appliances, toys, and various medical and other devices. We proudly make our coin cell batteries in our Panasonic Indonesia factory and they are packaged in our U.S.A. factory.