CR1220 Battery Equivalent, Specification, Application

The CR1220 is a popular button cell battery known for its compact size and 3-volt nominal voltage. Here are its specifications, equivalent batteries, and typical applications:

CR1220 Battery

Specifications:

  • Chemistry: Lithium Manganese Dioxide (LiMnO2)
  • Nominal Voltage: 3 volts
  • Diameter: Approximately 12.5 mm
  • Height: Approximately 2.0 mm
  • Capacity: Typically around 35 to 40 milliampere-hours (mAh)
  • Shelf Life: Up to 10 years, depending on storage conditions
  • Operating Temperature Range: Generally from -30°C to 70°C (-22°F to 158°F)

Equivalent Batteries:

The CR1220 battery is often interchangeable with several equivalent types, including:

  • DL1220
  • ECR1220
  • SB-T13
  • 280-208
  • L04
  • BR1220

CR1220 Battery

Common Applications:

  1. Watches: Many small wristwatches, especially digital models, rely on CR1220 batteries due to their small size and 3-volt nominal voltage, which is suitable for driving watch movements.

  2. Calculators: Compact and scientific calculators often utilize CR1220 batteries for their low power consumption and long shelf life.

  3. Key Fobs: Many car key fobs, garage or gate remote controls, and similar devices make use of CR1220 batteries due to their small form factor and sufficient voltage output.

  4. Computer Motherboards: CR1220 batteries are commonly used in computer motherboards to power the CMOS (complementary metal-oxide-semiconductor) memory that stores the system's BIOS settings and clock.

  5. Medical Devices: Some medical devices, such as small digital thermometers and glucose meters, are designed to accommodate CR1220 batteries.

  6. Small Electronic Devices: Various small electronic gadgets and devices, such as small LED lights, electronic toys, and novelty items, often rely on CR1220 batteries for power due to their compact size.

CR1220 Battery

Considerations:

CR1220 batteries, as with all button cell batteries, should be handled and disposed of with care. They should be kept out of reach of small children and pets and disposed of properly to avoid environmental harm. Since these batteries are not rechargeable, it’s important to replace them when they are depleted.

When selecting a battery for a specific application, it's essential to consult the device's manual or the manufacturer's recommendations to ensure that the chosen battery meets the device's requirements. Additionally, adhering to safety guidelines and local regulations for battery disposal and recycling is important to minimize environmental impact.

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