SureFire SF12-BB: SF123A Batteries 12/Box

Unlike alkaline batteries, SureFire high-performance lithium batteries boast a ten-year shelf life, which means they will be ready when you need them every time. For all SureFire lithium battery powered lights. High-performance batteries optimized for high drain use in flashlights. 10-year shelf life. Wide temperature tolerance, built-in heat, and fault (short-circuit) protection. Made in the USA