Features: 1) Size AA, LR6 alkaline battery 2) Nominal voltage: 1.5V 3) Diameter: 13.5 ~ 14.5mm 4) Height: 49.2 LR6 (Ultra Digital) Alkaline BatteryFeatures: 1) Size AA, LR6 (HP) alkaline battery 2) Nominal voltage: 1.5V 3) Diameter: 13.5 ~ 14.5mm 4) Height: 49.2 ~ 50.5mm 5) Weight: 24g LR6 (Ultra Digital) Alkaline Battery (Size AA)