Last Updated on October 24, 2023 by Kevin Chen
You have two button cell batteries to choose, CR1220 and BR1220. Which one should you choose?
This dilemma is quite common among most buyers. This is because the two batteries are similar in many aspects and at the same time are used in the same application areas.
To make the right choice, you will have to dig deep into the details of each battery.
And that is the exact purpose of this article.
We are going to break down the differences between CR 1220 vs BR1220.
At the end of it all you should be able to choose the right one, of course from the best button-cell battery suppliers in China.
Image source: Panasonic
The ‘CR’ acronym stands for Coin lithium manganese dioxide battery. They are also known as lithium coin batteries.
These are coin cell batteries that are commonly used in small portable electronic devices such as calculators, watches medical devices among others.
CR1220 is a 3-volt lithium battery that is a non-rechargeable. This means that once the power of the battery is depleted, you will have to discard the battery.
These batteries are quite affordable and have a commendable shelf-life. They are also widely available as there are many manufacturers that specialize in making them.
Be careful not to confuse the CR1220 with the CR2032. While both are coin rechargeable, they have technical differences such as capacity, voltage, and even physical capacity such as weight.
The cylindrical shape and the compact design makes these batteries applicable in small-size devices.
Image source: Digikey
Like the CR1220, BR1220 is another lithium battery that should attract your attention. Moreso if you are deep into lithium-powered batteries.
What does the BR stand for? It stands for battery rechargeable.
These are equally popular coin batteries known for their high reliability and efficiency.
BR1220 are small and cylindrical. They are perfectly designed to fit into small devices. While BR1220 can serve as a primary power source, it is also used as a backup source of power in some devices such as pacemakers.
BR1220 is equally ranked among the high-performance batteries since it is capable of supplying up to 12 Amperes continuous current. It also has a commendable operation life as it can be recharged for as more as 500 times without undergoing degradation.
It is also a hardy battery that can withstand harsh condition and rough handling.
Specs of CE1220
Here are the technical specifications of the CR1220 battery
- Nominal voltage 3.0 volts
- Cut-off voltage 2.0 volts
- Nominal capacity 37mAh
- Dimension: 12.5mm ×2.0mm
- Classification Lithium coin
- Chemical composition: Lithium/Manganese Dioxide
- Weight: 0.8 grams
- Designation : ANSI-5012LC,IEC-CE1220
- Typical volume: 0.25 cubic centimeters
- Max Rev Charge: 1 microampere
- Operating Temperature -30C-+70C
- Energy density: 153 milliwatt hr/g
- Self discharge rate 1% per year
Technical specifications of BR1220
These specs include:
- Dimension: 12.5mm ×2.0mm
- Nominal capacity 35mAh
- Continuous standard drain 0.03mA
- Battery type BR coin
- Designation : ANSI-5012LC,IEC-CE1220
- Operating temperatures -20 – +55C
Advantages and disadvantages of CR1220 battery
For a better understanding of this coin-cell battery, let’s take a look at its pros and cons
-High energy density: Despite being small, the battery has a high voltage capacity
-Small, compact and lightweight: The construction of the CR1220 makes it suitable for small devices
-High leakage resistance hence proper utilization of the energy
-Meets the required safety standards by the international bodies such as UL
-Impressive discharge characteristics
The main disadvantage of CR1220 and even BR1220 is they are non-rechargeable. This means that you cannot recharge them once they run out of power. You will have to buy new coin-cell batteries
CR1220 vs BR1220: What’s The Difference?
Now let’s compare these two batteries. The CR1220 vs the BR1220 on their various aspects.
While the two batteries may appear to be the same, they have different chemical compositions. CR is a manganese-dioxide lithium battery hence the name C. On the other hand, BR is a carbon-monofluoride lithium battery hence the name ‘B’.
What is the difference between these chemicals?
Voltage and current
The two batteries have almost the same power characteristics. Both have the nominal voltage of 3.0V and the cutoff voltage of 2.0V. However, you may find the older vversions of BR1220 with the nominal voltage of 2.5V and cutoff voltage of 2.25V.
When it comes to capacity, CR1220 has the rated capacity of between 35-40 mAh while BR1220 has the rated capacity of 35mAh.
The two batteries have the same discharge current which is 0.1A
From the specs, it is clear that the two batteries have the same width and height. They also tend to have the same weight. So, if it comes to using them on a device, you will not feel any significant difference.
The cost of CR12 20 and BR1220 is almost the same. The fact that they have almost the same specifications you should not expect the difference in prices. The only issue of concern is availability and this will end up affecting their prices.
CR1220 batteries are widely available as compared to the BR1220, so, you should expect them to be cheaper.
The price will also depend on where you buy these batteries. Some button-cell battries are more affordable than others. So, it will be prudent to take your time to choose the right one.
CR1220 and BR1220 have the same application areas. They are used in:
-Keyless entry devices
Portable heartrate monitors
What other device do you think is perfectly suited for these batteries?
Which one should I buy? CR1220 vs BR1220?
After analyzing the differences between CR1220 vs BR120, it’s time to make a choice. Technically, these two batteries have the same features and are even interchangeable. The choice on what to buy will ultimately depend on your preference and maybe the availability of the battery.
And if you are planning to buy CR1220 or BR1220 batteries in China, consider choosing ICRFQ. We are a reputable supplier of CR1220 and BR1220 batteries for sale.
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