Silver Oxide Watch Battery SR721SW Low Drain Replaces 362, PK 5

5PK Maxell Silver Oxide SR721SW Low Drain Watch Battery Replaces 362, 394, 1161SO, 280-17, 394, 394A, 625, AG9, D394, GP394, L936, LR936, R 394/27, RW 335, RW33, S33 The 362, or SR721SW, is a rare 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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