UTG JY CR123A 3V Lithium Batteries with Diameter 16.5mm, Length 34.0mm, Pack of 2

The Leapers UTG JY CR123A 3V Lithium Battery will power a wide range of high-tech devices, from flashlights to laser sights to riflescopes. The Leapers CR-123A 3 Volt battery (2-pack) contains two CR123A lithium batteries, each packing 3 volts into its small blue body. That's enough to get your flashlight, illuminated riflescope, or laser sight back in the action for at least a few more hours.