This AG1 Button Batteries Voltage is 1.5 Volts Dimensions 6.8 mm x 2.1 mm QTY 2, is commonly used in watches and mini flashlights. AG1 button batteries equivalent replacement for SR621SW, SR60, SR621, SB-AG/DG, 280-34, T, V364, D364, 602, S621E, GP364, AG1, AG-1, 364, L621, LR621, SG1, LR60, LR620, SW621, GP164, 364X, 364A, AG1/364A, SB-AG, E364.