Panasonic CR1616 lithium coin battery cells are engineered to maintain high discharging performance with our proprietary sealing technologies, including both structure and materials. Our CR1616 3V lithium battery cells also meet or exceed IEC 60086-4, ANSI c18-3m part 2, and UL 1642 product and packaging safety compliance standards. This CR1616 button cell battery is used to power small electronic devices including car key FOBs, calculators, watches, fitness appliances, toys, and various medical and other devices. We proudly make these CR1616 batteries in our Panasonic Indonesia factory and they are packaged in our U.S.A. factory.