Alkaline Cell Batteries This listing is for 20 units of the 1.55v of AG12 or LR43 batteries . You will receive 20 batteries in total (2 sheets of 10) Size of cell - 7.9 × 2.6mm (dia x height)
A watch battery, cell battery or button cell is a small single cell battery shaped as a squat cylinder typically 5 to 20 mm in diameter and 1 to 6 mm high—like a button on a garment, hence the name. Button cells are used to power small portable electronics devices such as wrist watches, pocket calculators, and hearing aids.
Manufacturers have their own part numbers for this type batteries including (they are all the same thing): AG12/SG12 LR43 L1142 186/301/386 6135-99-547-0573 (NSN)(S)