Engineered to provide reliable long lasting power Reliable even in a wide range of operating temperatures (-22°F to +140°f) Batteries and packaging meet or exceed IEC 60086-4 2019 ANSI c18-3m part 2-2019 and UL 1642 compliance standards Long shelf life of up to 8 years. Used to power small electronic devices memory back-up, digital watches, car keys, laser pens, fitness appliances and various medical devices 3. 0 V nominal voltage