5pk Maxell Silver Oxide Watch Battery SR421SW Low Drain Replaces 348 SB-A6
The 348, or SR421SW, is a popular Silver-Oxide cell commonly 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.
- Chemistry: Silver Oxide
- Voltage: 1.55V
- Capacity: 12mAh
- Diameter: 4.8 mm
- Height: 2.15 mm
- Includes 5 Batteries
- 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: 280-77, 348, SB-A6, SR421, SR421SW, V348, GP348, D348
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|Country of Manufacture||Japan|