Energizer-4-5V-Battery-Alkali-Manganese-Energizer-632856-P-The-Energizer-632856-is-an-Alkali-Manganese-Battery-4-5V-3LR12-that-is-commonly-used-in-Cycle-Lamps-due-to-its-long-life-The-3LR12-is-the-long-lasting-alkaline-version-of-a-3R12-the-L-denoting-alkaline-cells-The-battery-is-also-found-in-torches-&-electric-door-bells-P-P-The-4-5V-battery-has-a-shelf-life-of-several-years-P-Energizer-632856-Alkali-manganese-battery-4-5V-x 1