CMOS Battery- CR2032 button battery

CMOS battery, also known as button battery, is a small, round battery that is mainly used to power the CMOS chip on the computer motherboard. The CMOS chip stores the computer's basic input and output system (BIOS) settings, including information such as date, time, hardware configuration, etc. The CMOS battery ensures that this information is not lost even if the computer is turned off.

Common model: CR2032

CR2032 is one of the most common CMOS battery models currently available. It has a diameter of 20 mm, a thickness of 3.2 mm, and a voltage of 3 volts. CR2032 is known for its stable voltage output and long service life, and can usually be used for 3 to 5 years, or even longer.

Features

1. High energy density: CR2032 batteries have high energy density and are able to provide sufficient power in a small volume.

2. Long life: Due to its low self-discharge rate, CR2032 batteries can maintain a long life during storage and use.

3. Stability: CR2032 batteries can maintain stable voltage output over a wide temperature range and are suitable for various environmental conditions.

4. Environmental protection: CR2032 batteries do not contain mercury, are environmentally friendly, and meet modern environmental standards.

Application scenarios

- Computer motherboard: Provide continuous power to the CMOS chip to ensure that the BIOS settings are not lost.

- Electronic devices: Small electronic devices such as calculators, electronic scales, and remote controls.

- Medical equipment: Some portable medical devices also use CR2032 batteries as power sources.

Replacement Guide

1. Shut down and disconnect the power: Before replacing the CMOS battery, make sure the computer is completely shut down and disconnected from the power supply.

2. Open the case: Open the computer case and find the CMOS battery on the motherboard.

3. Remove the old battery: Use a small screwdriver or your fingers to gently pry up the old battery, taking care not to damage the motherboard.

4. Install a new battery: Place the new CR2032 battery into the battery slot with the positive pole facing up, making sure the battery is firmly installed.

5. Restart the computer: Close the case, reconnect the power supply and start the computer to check whether the BIOS settings are correct.

Precautions

Correct installation: Make sure the positive and negative poles of the battery are installed correctly to avoid short circuit or damage to the device.

Regular inspection: It is recommended to check the power of the CMOS battery every few years and replace it in time to ensure the normal operation of the device.

Through the above introduction, I believe you have a deeper understanding of CMOS batteries and their common model CR2032. Whether it is daily use or equipment maintenance, choosing a suitable CMOS battery is the key to ensure the stable operation of the device.