CR1220 Battery Equivalent, Specification, Application

The CR1220 lithium coin battery is the main part of heat rate monitors, glucose monitors, keyless entry devices, and other high-power devices. It is a cylindrical-shaped battery that can be used for a long time. Let’s discuss the CR1220 battery equivalent, specification, and application.

What is the CR1220 battery?

The Cr1220 lithium coin battery has the best use in devices that are not operated on conventional batteries. The batteries are operated with different devices like exercise instruments, digital watches, etc. Their physical dimensions are 12.5 x 2.0 mm. It is high-power due to its high voltage of about three volts and compact structure. Its high power makes it effective to use a single battery instead of two or more batteries. This battery has the best function and safety measures due to different testing processes. In the testing process, temperatures are also monitored.

These batteries are so chemically stable that they retain ninety percent of their nominal capacity for about ten years. They are durable due to the use of lithium and manganese dioxide.

CR1220 Battery Equivalent

CR1220 Battery Equivalents

The CR1220 battery is a non-rechargeable lithium 3.0 button battery. It is like the BR1220 batter, which has the same physical dimensions but comes with different chemistry and different features in the form of capacity, operating temperature, voltage, etc.

Its main replacements are DL1220, 280-208, DL1220B, BR1220-1WECR1220, BR1220, CR1220-1W, KCR1220,

Which Battery Comes Closest to a CR1220 Battery Equivalent?

BR1220 is equivalent to the CR1220 battery. These two are the same and have a rated voltage of about three volts, and their dimensions are (0.49 dia x 0.08 h, 12.5mm x 2.0 mm).

BR1220 vs. CR1220 Battery

BR1220 vs. CR1220 Battery

As these batteries have the same dimensions but come with different chemistry, CR1220 is more common than Br1220 and comes with different features like battery operation, voltage self-discharging, etc.

  • These two batteries are also known as lithium 3.0 coins or button batteries.
  • They have 12.5 mm x 2.0 mm dimensions but come with different features that affect their discharging process.
  • Lithium is used as a negative electrode in these batteries, and carbon monofluoride is used as a positive cathode.
  • Normally, the average operating temperature of CR batteries is between -4°F and 158°F. Their cutoff voltage is 2 volts.

Read Also: DL2032 vs. CR2032

  • The CR1220 battery has a current capacity of about 35 to 40 mAh, and the discharge rate is 0.05 to 0.1 mA.high peak discharge rate of one milliampere. Its capacity is based on operating life, discharge temperatures, and pulses.
  • Some types have an operating life of about ten years; the normal operating life of CR1220 is about 4 to 7 years based on the self-discharge rate. The CR1220 average dropout voltage is about 1 percent at room temperature.
  • The label for lithium carbon monofluoride batteries is B, so they are known as BR1220. The suggested temperature range of BR1220 is between -22°F (-30°C) and 185°F (85°C).
  • The cutoff voltage of BR1220 is 2 volts, and the rated voltage is 3 volts, which is like CR1220.
  • BR1220 comes with a steady output voltage, compared to CR1220. But older types of BR1220 batteries have a 2.8 voltage rating, and the cutoff was about 2.25 volts.
  • BR1220 has a capacity of about 35 mAH. The highest load discharge rate is 0.1, and the average output current is less than the drain rate of CR1220 batteries at 0.03.
  • But BR1220 and Cr1229 batteries can be interchanged. These two batteries are used for low-point drains at room temperature, but CR1220 is best used for drain operation. BR1220 is best for high-temperature operation.
  • As BR1220 batteries have a reduced self-discharge percentage, they’re best used in motherboard panels.
  • The CR1220 battery has a self-discharge rate of about one percent a year, so use the BR1220.

CR1220 Batteries vs. CR1216 Batteries vs. CR1225 Batteries

These three batteries are similar, but the differences are in size, features,  and operation.

Battery Diameter (mm) Height (mm) Capacity (mAh) Drain Current
BR1216/CR1216 12.5 1.6 25 very similar
BR1220/CR1220 12.5 2.0 35 somewhat lower
BR1225/CR1225 12.5 2.5 50 somewhat stronger

CR1220 Battery Application

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