CR2025 Battery Voltage: Features, Specifications, and Applications

Common button lithium batteries, such as the CR2025, are frequently used to power a wide range of small electronic devices, including computer motherboards, watches, glucose monitors, heart rate monitors, calculators, and remote controls.This article details the CR2025 lithium coin battery, covering its features, specifications, production, comparisons with similar batteries, major manufacturers, and applications.

cr2025 voltage,cr2025 battery low voltage,nominal battery voltage cr2025

An explanation of CR2025

The CR2025 battery is a disposable lithium coin cell, commonly referred to as a "button battery." This battery type typically uses lithium and is about 20mm in diameter and 2.5mm thick. This battery has a voltage of 3V and can hold up to 170mAh, depending on the manufacturer's instructions.
Due to its long shelf life and stable voltage output, the CR2025 battery is highly favored. Its capacity usually ranges between 160 to 170 milliamp-hours, making it suitable for powering low-drain devices. Given its small size and high voltage, the CR2025 is very practical in portable electronic products.

CR2025 Specifications

CR2025 Size

CR2025 Dimensions

Features of CR2025

- Light and powerful: This battery has a voltage of 3V, which is almost double that of regular batteries. It saves space and weight, and you need fewer batteries for your devices.
- Excellent Discharge Characteristics: Under prolonged discharge conditions, the voltage characteristics remain stable, greatly enhancing device reliability. This type of device has low maintenance needs (infrequent battery replacement).
- Outstanding Leak Resistance: Utilizing a newly developed battery structure and electrolyte ensures long-term excellent leak resistance.
- Superior Long-term Reliability: Select active materials and electrolytes are used, and Murata's innovative sealing technology significantly reduces the self-discharge rate. Under normal temperature and humidity conditions, the annual self-discharge rate is less than 1% of the total capacity.
- UL Certified: Murata's button manganese dioxide lithium batteries are UL certified (file number UL1642 MH12566).
- Environmentally Friendly Standards: Free from mercury (Hg), cadmium (Cd), and lead (Pb), complying with EC directives (Directive 2006/66/EC, 2013/56/EU). This battery pack meets the RoHS directive (European Parliament and Council Directive 2011/65/EU).

Applications of CR2025

1. Automotive Applications:

- Smart Keys: Used for wireless control of car locks and the ignition system, often referred to as a key fob.
- Keyless Entry Systems: Offer practical controls for door locks without using conventional keys.

- Door Sill Plates: Often refers to decorative sill plates with lighting, used to beautify and enhance the vehicle's appearance.

2. Internet of Things (IoT):

- Tracking Devices: Such as GPS trackers, used to monitor the location of objects or individuals.
- Sensors: Used to collect environmental or device data, such as temperature and humidity.
- Security Devices: Such as part of a smoke detector or security alarm system.

3. Medical Devices:

- Thermometers: Especially electronic thermometers, used for measuring body temperature.

- Blood glucose meter: The blood glucose monitor can measure blood glucose levels and blood sugar levels for diabetes care.

4. Other Electronic Devices:

- Home Appliances: Such as remote controls.
- Multifunction Printers: Provide backup power to save settings.
- Electronic Price Tags: Used to display price information in stores.
- POS Systems: Support retail transaction processing.

5. Household and Personal Goods:

- Computer Motherboards: Keep the configuration and system clock up to date.

- Watches, Calculators: Provide long-term reliable power.
- PDAs, Electronic Notepads: Enhance the power supply of portable devices.
- Garage Door Openers, Games, and Toys: Make sure they run constantly.
- Door Bells, Pet Collars, LED Lights: Increase convenience and safety.
- Sports Equipment such as Pedometers and Calorie Counters: Record activity data.

Technical Manufacturing Process of CR2025

1.The CR2025 battery production involves a series of precise manufacturing steps to ensure quality and performance:

- Select Materials: Choose high-purity lithium and other proprietary materials for their electrical and chemical stability.
- Prepare Electrodes: Prepare the anode (lithium) and cathode (manganese dioxide mixed with conductive additives) separately. Create the electrodes by coating the mixture over a metal substrate.
- Assemble Cells: Assemble the electrodes in a clean room environment to prevent any contaminants that could affect battery performance. Place a separator soaked in electrolyte between the anode and cathode to facilitate ion transfer while preventing direct contact.
- Close the cells tightly with a precise crimping process to prevent air leaks. This is important for keeping the battery in good condition for a long time.

2.Comparison Between CR2025 and CR1216 battery

- Size and Capacity: The CR2025 has a diameter of 20mm and a thickness of 2.5mm, offering higher capacity. The CR1216 has a diameter of 12mm and a thickness of 1.6mm, with lower capacity.
- Applications: People use the CR2025 in watches, calculators, and remote controls. Small devices like slim remote controls and sensors use the CR1216.

Comparative Analysis with Similar Batteries

The CR2025 can be compared with other batteries like CR2032 and CR2016:
- Size and Capacity: While CR2025 and CR2032 have the same voltage, CR2032 offers a higher capacity due to its thicker size (3.2 mm). CR2016 is thinner (1.6 mm) and has a lower capacity but is more suitable for slimmer devices.
- Various devices require different types of batteries based on their design and power requirements. - The type of battery chosen for a device depends on its specific design and power needs.

Manufacturers of CR2025

CR2025 button batteries are produced by several manufacturers. Manufacturers typically use lithium to make small batteries that are 20mm in diameter and 2.5mm thick. Small devices like remote controls, calculators, and watches commonly use them.
Major manufacturers include Panasonic, Sony, and Maxell, known for their high quality and reliability. These companies make CR2025 batteries with steady voltage and lasting power for different electronic devices.

---

---

Frequently Asked Questions

1. How to Test CR2025 Battery Voltage

To test the voltage of a CR2025 battery, you will need a multimeter. Here's how to do it:
- Set your multimeter to the voltage setting (typically marked as "V").
- Place the positive (red) probe of the multimeter on the positive side of the battery, which is typically the side marked with a "+".
- Place the negative (black) probe on the other side of the battery.
- Analyze the voltage displayed by the multimeter. This will provide you with your CR2025 battery's current voltage.

2. What Voltage is Low for a CR2025 Battery?

Typically, people consider a CR2025 battery low if its voltage is under 2.7 volts. At this level, the battery may not function effectively, and experts often recommend replacing it.

3. What Voltage is the Lithium Battery CR2025?

The CR2025 lithium battery operates at a voltage of 3 volts when in optimal condition. This is the standard voltage for new or nearly new CR2025 batteries.

4. What is the lifespan of a CR2025 battery?

The lifespan of a CR2025 battery typically depends on the usage frequency and the power demands of the device, generally ranging from 2 to 5 years, but it can last up to 10 years if stored properly.

5. Can CR2025 be used in place of CR2032?

CR2025 can be used in place of CR2032 in some cases, but due to its lower capacity, it may result in reduced run time of the device.

6. How much does a CR2025 battery weigh?

A CR2025 battery weighs about 2.6 grams.

7. What should be considered when storing CR2025 batteries?

When storing CR2025 batteries, avoid high temperatures and direct sunlight, and ensure the batteries are kept in a dry environment to extend their lifespan.

8. What is the availability of CR2025 batteries in the market?

The CR2025 is a very common battery model and can be easily purchased at most electronics parts and general retail stores.

9. How long can a CR2025 battery provide continuous current?

Under a 15kΩ load, a CR2025 battery can provide about 0.19mA of continuous current at a terminal voltage of 2.9V, lasting approximately 890 hours.