Last updated on April 2nd, 2024 at 11:42 am
This battery is a non-rechargeable primary lithium coin cell battery, or simply a type of button cell. It has a voltage of 3V and a capacity of up to 170mAh. The diameter of this battery is 20mm, while the height is 2.5mm. These batteries are commonly used in small portable electronic devices like wristwatches, calculators, hearing aids, etc.
Table of Contents
What does CR2025 stand for?
As per International Electrotechnical Commission (IEC) standards, lithium coin cell batteries are usually designated with ‘CR’ followed by a set of numbers. In the case of CR2025, these represent:
- The first letter ‘C’ gives the chemical composition, it is Lithium Manganese Dioxide.
- The second letter ‘R’ tells about the shape of the battery. i.e., it is a round cell
- The first two digits indicate the diameter of the cell, i.e., 20mm
- The last two digits indicate thickness, i.e., 2.5mm
What is a CR2025 battery?
These batteries are a type of primary button cell battery and are non-rechargeable. These batteries use a lithium/manganese dioxide chemical composition which gives the battery more stability. Though they are a bit more expensive than alkaline batteries, they last longer, weigh less, and have a wide operating temperature range.
They also maintain a stable voltage level during discharge and support long-term reliability. They are generally suited for products that require lower current drains such as wristwatches, pocket calculators, etc.
These coin cells have a proven track record for high safety and reliability under the UL safety standards in the United States.
CR2025 battery equivalent
There are no exact equivalent batteries to the CR2025, but there are multiple batteries that may act as suitable substitutions. It can be replaced with BR2025, DL2025, ECR2025, and SB-T14, AWI L12, LM 2025, LiR2025, KCR2025.
Battery specifications
The nominal voltage of this battery is 3V. It weighs 2.6g and is 20mm in diameter and 2.5 mm in height. The table lists the important features of a battery.
For a load of 15k ohms, this coin cell can provide a continuous current of 0.19mA at a terminal voltage of 2.9V for 890 hours.
| Feature | Value |
| Chemical composition | Lithium / Manganese dioxide (LiMnO2) |
| Nominal Voltage | 3V |
| Weight | 2.6g |
| Capacity | 170mAh |
| Diameter | 20mm |
| Volume | 0.8 cubic centimeters |
| Max. reverse charge | 1 microampere |
| Operating temperature | -30C to 60C |
| Self-discharge | ~1% / year |
To read its datasheet click here
Applications
This battery is commonly used in portable electronics applications. They can also be used in devices with limited mounting space, without affecting performance. Some of the applications include:
- Wristwatches
- Pocket calculators
- Automobile keyless entry transmitter
- Hearing aids
- Tracking devices/Sensors
- PCMCIA static RAM cards
- Small PDA devices
- Various electronic toys
- Laser pointers
- Digital thermometers
- Digital altimeter
- Cyclo-computers
- Heart rate monitors
- Others: Home electrical appliances/Multifunctional printer/Electronic price tags, POS systems
FAQs
What are the benefits of the CR2025 battery?
The battery has a higher energy density and high leakage resistance. Their nominal voltage remains close to 3V even after 1000 hours of use.
Is 2025 and 2032 batteries the same?
No, they are not the same. But they can be used as a substitute for each other. CR2032 is 20mm in diameter, and 3.2mm thick, while CR2025 is slightly thinner (2.5mm thick). Both have the same voltage i.e., 3V. So they can be made to fit in a case.
Are CR2025 batteries rechargeable?
No, CR2025 is a non-rechargeable battery. It is a type of primary battery.
Is CR2450 the same as CR2025?
No, they are not the same. Though they have a similar chemical composition and output voltage. However, CR2450 batteries are wider and cannot be used as a substitute for CR2025.
