Used commonly to power calculators, torch light key chains, laser points, gadgets and as a battery backup in some larger devices.
Battery Type: 1.55V Alkaline Button Cell Battery
Most Common Name: SR54
Other Common Names: AG10/SG10, LR54, 189/387/389/390, LR1130/SR1130
Dimensions: 11.6 x 3.1 mm (Diameter x Height)