Used commonly to power wrist watches, light meters, digital calipers and other electronic devices that require a steady voltage source. Specifications Battery Type: 1.55V Button Cell Battery Chemical composition: Silver Oxide Most Common Name: SR44* (Can be used to replace LR44 Alkaline Button Cells) Other Common Names: AG13 / LR44 (Alkaline), 157, 303, 657, SG13 / SR44 (Silver) IEC Name: SR1154 ANSI/NEDA Name: 1107SO Dimensions: 11.6 x 5.4 mm (Diameter x Height) Packaging: Individual Blister