What is a CR1632 Battery?

A CR1632 battery is a 3V lithium coin cell battery with a diameter of 16mm and a height of 3.2mm. The “CR” in the name stands for “Chromium,” indicating that the battery uses a chromium-based cathode material. The numbers “16” and “32” represent the battery’s diameter and height in millimeters, respectively.

CR1632 Battery Specifications

Specification	Value
Nominal Voltage	3V
Diameter	16mm
Height	3.2mm
Capacity	130mAh
Chemistry	Lithium Manganese Dioxide (LiMnO2)
Operating Temperature Range	-30°C to 60°C
Weight	Approximately 1.8g

How Does a CR1632 Battery Work?

The CR1632 battery consists of a lithium anode, a manganese dioxide cathode, and an organic electrolyte. When the battery is connected to a device, the lithium atoms in the anode lose electrons, creating a flow of electricity through the device. The manganese dioxide cathode accepts these electrons, completing the circuit and allowing the device to function.

CR1632 Battery Chemistry

The CR1632 battery uses a Lithium Manganese Dioxide (LiMnO2) chemistry, which offers several advantages:

1. High energy density
2. Stable voltage output
3. Long shelf life
4. Wide operating temperature range

Applications of CR1632 Batteries

CR1632 batteries are used in a variety of small, low-power electronic devices, such as:

1. Watches
2. Calculators
3. Key fobs
4. Laser pointers
5. Small remote controls
6. Medical devices (e.g., glucose meters, hearing aids)
7. Toys
8. LED lights

Advantages of CR1632 Batteries

1. Long shelf life: CR1632 batteries can last up to 10 years when stored properly.
2. Stable voltage output: The battery maintains a consistent voltage throughout its lifespan.
3. Wide operating temperature range: CR1632 batteries can function in temperatures from -30°C to 60°C.
4. Compact size: The small size of CR1632 batteries makes them ideal for use in portable, space-constrained devices.
5. Lightweight: Weighing approximately 1.8g, CR1632 batteries add minimal weight to devices.

Disadvantages of CR1632 Batteries

1. Limited capacity: With a capacity of only 130mAh, CR1632 batteries may not be suitable for high-power devices or those requiring long runtime.
2. Non-rechargeable: CR1632 batteries are primary cells, meaning they cannot be recharged and must be replaced when depleted.
3. Potential for leakage: If exposed to extreme temperatures or left in devices for extended periods, CR1632 batteries may leak, causing damage to the device.

Proper Handling and Storage of CR1632 Batteries

To ensure the longevity and safety of CR1632 batteries, follow these guidelines:

1. Store batteries in a cool, dry place away from direct sunlight and heat sources.
2. Keep batteries in their original packaging until ready for use.
3. Avoid storing batteries with metal objects, as this can cause short-circuiting.
4. Insert batteries correctly, following the device’s polarity markings.
5. Remove batteries from devices when not in use for extended periods.
6. Dispose of used batteries according to local regulations, as they may contain harmful chemicals.

Comparing CR1632 Batteries to Other Coin Cell Batteries

CR1632 batteries are just one type of coin cell battery available. Other common types include:

Battery Type	Nominal Voltage	Diameter	Height	Capacity
CR2032	3V	20mm	3.2mm	225mAh
CR2025	3V	20mm	2.5mm	170mAh
CR2016	3V	20mm	1.6mm	90mAh
CR1220	3V	12.5mm	2.0mm	40mAh
LR44 (Alkaline)	1.5V	11.6mm	5.4mm	150mAh

When choosing a coin cell battery for your device, consider the required voltage, size constraints, and capacity needs.

Frequently Asked Questions (FAQ)

1. Can I recharge a CR1632 battery?
   No, CR1632 batteries are primary cells and cannot be recharged. Once depleted, they must be replaced with a new battery.

2. How long does a CR1632 battery last?
   The lifespan of a CR1632 battery depends on the device’s power consumption and usage patterns. In low-power devices, such as watches or key fobs, a CR1632 battery can last several years.

3. Are CR1632 batteries interchangeable with other coin cell batteries?
   While CR1632 batteries may have similar voltages to other coin cell batteries, they are not always interchangeable due to differences in size and capacity. Always use the battery type specified by the device manufacturer.

4. How should I dispose of a CR1632 battery?
   CR1632 batteries should be disposed of according to local regulations, as they contain harmful chemicals. Many electronics stores and battery retailers offer battery recycling programs.

5. Can I use a CR1632 battery in a device that requires a different battery type?
   It is not recommended to use a CR1632 battery in a device designed for another battery type, as it may not fit properly or provide the required voltage and capacity. Using the incorrect battery type can lead to device malfunction or damage.

Conclusion

The CR1632 battery is a versatile and compact power source for various small electronic devices. Its high energy density, stable voltage output, and long shelf life make it an ideal choice for applications such as watches, calculators, and key fobs. By understanding the specifications, proper handling, and storage requirements of CR1632 batteries, you can ensure optimal performance and longevity in your devices.

When selecting a battery for your device, always consider the manufacturer’s recommendations and compare the specifications of different coin cell batteries to find the best fit. With proper care and use, CR1632 batteries can provide reliable power to your small electronic devices for years to come.