Also called as 364, AG1, LR621, SR621SW Alkaline Batteries
AG1 or LR621 are very popular coin/button cell batteries often used in wrist watches, small toys, calculators, remote keys, and similar small and compact devices.
Their nominal voltage is 1.5 volts.
The nominal capacity of LR621/LR60/AG1 batteries is around 12-15 mAh