A23s Battery. Replacement for 23A, 23GA, A23, E23A, GP-23A, GP23A, K23A, L1028, LR23A, LRV08, LRVO8, MN21, MS21, V23, V23GA, VR22. A battery designed by Japanese engineers, which meets the highest standards of modern button batteries. Has a very long shelf life, a wide range of safe operating temperatures and is resistant to leaking.