16 pack non-rechargeable Premium 1600mAh CR123A 3V lithium batteries delivers good performance in both high pulse power and continuous low drain applications for all high-tech devices like smart security cameras, sensors, photographic camera flashes, flashlights, GPS trackers, as well as for everyday electronics. Tenergy's lithium batteries are engineered and produced to deliver power availability even in really hot or cold outdoor usage environment. 10 years shelf life - Date stamped for guaranteed freshness low self discharge 123A batteries provides power when needed. UL certified and include built-in PTC protections against over current, short circuits, and overheating. CR123A size - Interchangeable with 123A, 5018LC, CR123, CR123A, CR17345, EL123, DL123A, K123A, VL123A, and CR17345.