Panasonic CR2016 lithium coin battery cells are engineered to maintain high discharging performance with our proprietary sealing technologies, both structure and materials. Our CR2016 3V lithium battery cells also meet or exceed IEC 60086-4 2019 ANSI c18-3m part 2-2019 and UL 1642 product and packaging safety compliance standards. This CR2016 button cell battery is used to power small electronic devices including car key FOBs, calculators, watches, fitness appliances, toys, and various medical devices.