Surefire 12 x cr123 cr123a 123A 3 Volt Lithium Batteries 12-Pack SF123A
good for all flashlights and alarms/ electronics for use in SureFire and other brands  flashlights, SureFire Lithium batteries pack a lot of power into a small package. And 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