laser flashlight batteries by size
(3) LR44 button cell , 3 V & two tactical on/off pressure switches. This & kit by Crosman is great for medium to close range shooting. Mount this onto any 1″ scope tube and enjoy increased accuracy from your favorite gun.
AA and AAA 1.2-1.5V , the most commonly used. Usable in low power , (upto 100mW or so) and other small consumer electronic devices. Sanyo Eneloop is the current favorite among rechargeables due to high…