Silver Oxide Watch Battery SR621SW Low Drain Replaces 364, PK 5

5PK Maxell Silver Oxide SR621SW Low Drain Watch Battery Replaces 362, 364, 364BP, 531, 602, AG1, D 364, D364, GP364, L621, LR60, LR620, LR621 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). 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.

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