What is a 3V CR2032 lithium manganese battery?

3V CR2032 lithium manganese battery belongs to the lithium-manganese dioxide structure. The positive electrode material of the battery is manganese dioxide with very stable chemical properties, and the negative electrode material is metallic lithium. The electrolyte is a solid salt or a salt electrolyte dissolved in an organic solvent, such as ethylene glycol dimethyl ether, propylene carbonate, and lithium perchlorate. This kind of battery is shaped like a button, referred to as button lithium battery or lithium manganese button battery.

The advantages of the CR2032 coin lithium battery include high specific energy, long storage period, small self-discharge, safe use, wide operating temperature range, and the battery can work normally in the temperature range of -20~+60℃.

The name of CR2032 lithium manganese battery is named according to IEC standards. C refers to a chemical battery system using metallic lithium as the negative electrode and manganese dioxide as the positive electrode. R means that the shape of the battery is cylindrical. If it is a square, it is represented by F. 20 means the battery diameter is 20mm, and 32 means the battery height is 3.2mm.

The nominal voltage is 3.0V, the endpoint voltage is 2.0V, and the rated capacity is 200-240mAh.

With the continuous development of the manufacturing process and the requirements of some emerging industries, CR2032 lithium-manganese batteries have also undergone some improvements. The main reason is that the improved capacity will be very different, and the current output capability will be improved.

The battery is often used in electronic scales, calculators, electronic dictionaries, remote keys for cars, CMOS batteries on computer motherboards, and other memory functions or power-off protection modules.

The shelf life of CR2032 lithium manganese batteries is generally 5 years. However, if the manufacturer’s manufacturing level is not high, or the quality control is not good, its life will be shortened sharply. If used in a sealed, normal temperature, moisture-free environment, the service life will be further extended, up to 8 years or even 10 years.

What is a CR2025 battery?

Similar to the above introduction, in cr2025, C represents a chemical battery system with lithium metal as the negative electrode and manganese dioxide as the positive electrode. R indicates that the shape of the battery is cylindrical. The difference from cr2032 is that 20 means the diameter of the battery is 20mm, and 25 means the height of the battery is 2.5mm.

The nominal voltage is 3.0V, the endpoint voltage is 2.0V, and the rated capacity ranges from 140-170mAh.

Can car keys CR2032 and CR2025 be used interchangeably?

Car keys CR2032 and CR2025 cannot be used interchangeably. It should be noted that the car key battery is not a universal type, and each key has a model on the battery.

The specific differences are reflected in:

1. The thickness of the battery is different. The CR2032 is 3.2mm thick and the CR2025 is 2.5mm thick. Different thicknesses are suitable for different models.

2. The capacity is different. The capacity of CR2032 is 50-80mAh more than that of CR2025. Because of its large capacity, it is mostly used in electrical appliances with a higher power.

3. The discharge current is different. The CR2032 can withstand a maximum continuous current of 20mA, while the CR2025 can usually only withstand a discharge current of 10mA. Therefore, when choosing a model, it should be matched according to the actual use current of your own product.

Note: C in other rules does not necessarily refer to the lithium-manganese system. For example, C of ANSI (American National Standards Institute) refers to Carbon-Zinc.

What are the Similarities Between CR2025 and CR2032?

The nominal voltage is all 3.0V, and the terminal voltage is all 2.0V. The shapes are similar, both in the shape of buttons. And can be applied to the computer motherboard CMOS battery, other memory functions or power-off protection modules, electronic scales, calculators and electronic dictionaries, and other products.

For more detailed information, please visit the article page of the differences between CR2032 battery and CR2025 battery.