CR1216 battery: Overview,Specifications,Main uses,Features,application fields,working principle and alternative models


CR1216 Battery Overview:

The CR1216 is a small, coin-shaped lithium manganese dioxide battery with a diameter of 12.5mm and a thickness of 1.6mm. These batteries are commonly used in various small electronic devices where compact and reliable power sources are needed. Here is an overview of the CR1216 battery, including specifications, main uses, features, application fields, working principle, and alternative models:



  • Type: Coin Cell Lithium Battery
  • Size: 12.5mm diameter, 1.6mm thickness
  • Chemistry: Lithium Manganese Dioxide (Li-MnO2)
  • Nominal Voltage: Typically 3V
  • Capacity: Varies, commonly around 25-30mAh
  • Shelf Life: Several years when properly stored
  • Operating Temperature: Varies, but typically -20°C to 60°C
  • DataSheet

    CR1216 PDF

Main Uses:

  • Small Electronics: Used in devices like watches, calculators, key fobs, and small medical devices.
  • Memory Backup: Employed in devices that require long-term data storage, such as RTCs (Real-Time Clocks).
  • Remote Controls: Powering the electronics in remote controls and other small handheld devices.
  • Laser Pointers: Providing power for laser pointers and similar gadgets.


  • Compact Size: Small form factor suitable for space-constrained applications.
  • Stable Voltage: Provides a steady 3V output throughout its lifespan.
  • Long Shelf Life: Can retain its charge for several years when stored correctly.
  • Reliable Power Source: Delivers consistent power for low-drain applications.
  • Low Self-Discharge Rate: Maintains a charge when not in use.

Application Fields:

  • Wearable Technology: Integrated into small wearable devices like fitness trackers and smartwatches.
  • Consumer Electronics: Used in small electronic gadgets, remote controls, and small medical devices.
  • Industrial Applications: Employed in various industrial sensors and small electronic components.
  • Embedded Systems: Powering components and memory backup in embedded systems and IoT devices.

Working Principle:

  • The CR1216 battery uses lithium and manganese dioxide as active materials for the anode and cathode, respectively.
  • Lithium ions flow from the anode to the cathode when the battery is in use, generating a steady voltage output.
  • This flow of ions creates a potential difference between the battery's terminals, providing power to the connected device.

Alternative Models:

  • CR1220: Slightly larger in diameter and thickness but with similar characteristics.
  • CR1216H: High-capacity variant of the CR1216 battery.
  • CR1216M: Low-self-discharge model with extended shelf life.


  • When selecting alternative models, consider factors such as size, capacity, voltage, and compatibility with the specific device requirements.
  • Ensure that the replacement battery meets the necessary specifications for proper operation and performance in the device.

The CR1216 coin cell lithium battery is a popular choice for small electronic devices that require a compact, reliable power source. Known for its stable voltage output, long shelf life, and suitability for low-drain applications, the CR1216 is used in various consumer electronics, medical devices, and embedded systems where space and performance are critical requirements.