Being an alkaline battery this 1.5V LR54 offers a high energy capacity, with good high and low temperature performance with longer term storage. The same size batteries are known by different names depending on the brand, see some of the known names of this battery size :- LR54 Button Cell, 189, L1131 Button Cell, LR1130 Watch, AG10 Button Cell, RW89, VG10GA, LR1131, G10A CNB, A389, G10A Button Cell, BLR54, V10GA, LR54, GP189 Alkaline, LR1130 Button Cell, wclr1130, Vinnic L1131, G10A Micro Cell, and are commonly used in calculators, watches, and some of our flashing novelties. Type 1.5V Button Cell (Replaces AG10, SG10, G10-A, V10GA, 189, 387, 389, 390, L1130, L1131, LR1130)10 x Batteries per pack