Maxell Silver Oxide Watch Battery SR621SW Low Drain Replaces 364 This battery is a Silver-Oxide cell normally used in watches, with a shelf life of 5+ years. Other applications may include calculators, film cameras, medical instruments, cash registers, or FA instruments (measuring instruments, onboard microcomputers, sensors). This is a 'SW' low drain battery. Low drain batteries are best used in devices that use a small amount of power over a long period of time: Analog watches, TV remotes, alarm clocks, etc. This is in comparison to high drain batteries, which are for devices with a continuous, low power use and occasional high peaks: Analog and digital watches with extra functions (backlight, alarm), pocket calculators, electronic games, cameras, etc. Specifications Chemistry: Silver Oxide Voltage: 1.55V Diameter: 6.8 mm Height: 2.2 mm Features Low Drain Type - Best used with analog watches A flat discharge curve during discharge supplies a stable voltage until the end of the discharge life High-energy density per unit volume provides 2x the amount of energy capacity as button-type alkaline batteries Featuring Maxell's original leak-resistant processing Also Known As: 1175SO, 164, 280-34, 362, 364, 364BP, 531, 602, AG1, D 364, D364, GP364, L621, LR60, LR620, LR621, R 364/31, RW 320, S621S, SB-AG/DG, SG1, SP364, SR 60, SR 621 SW, SR60, SR60L, SR621, SR621SW, T, V364 Need more than one? We offer great discounts on quantity orders and offers available. SpecificationsBrand: Maxell Output Voltage: 1.55V Chemistry: Silver Oxide Battery Size: 364 Height: 2.2mm Diameter: 6.8mm Compatibility Energizer: 364-363TS Maxell: SR 621 SW Other: 1175SO, 164, 280-34, 362, 364, 364BP, 531, 602, AG1, D364, GP364, L621, LR60, LR620, LR621, R 364/31, RW 320, S621S, SB-AG/DG, SG1, SP364, SR60, SR60L, SR621, SR621SW, T