Duracell A23 12v high voltage alkaline battery Common in security devices, garage door remote controls, cameras and doorbells This high quality alkaline battery offers superior performance with a long operational life, as well as performing at a wide range of operating temperatures Also known as A23, 23A, MN21, LRV08, 23AE, E23A, V23GA, GP23A, 8F10R, 8LR23, 8LR932, CA20, K23A, L1028, MS21, RVO8 or VR22