Medium drainage devices used LR14 C size alkaline battery, C-sized batteries are smaller than D batteries but larger than AA and AAA batteries. Immense power Lr14 made under the supervision of expert team of group. So buy LR14 C size Alkaline battery for your perfect drainage devices such as in large flashlights, radio receivers and transmitters, boomboxes, products with electric motors, safety systems, Geiger counters, megaphones.