Characteristics of CR2032 battery

The operation of any gadget depends on electric current. However, there are devices in which it is simply impossible to install standard AA batteries. These may include alarm key fobs, wristwatches, and some children's toys. They require low voltage electricity to operate.

In such cases, so-called button batteries are used, which are round in shape and really look very similar to tablets. However, this is the name they bear among the people. They are actually called CR2032. Today we will tell you in detail about this battery, what features it has, present the main characteristics and much more.

CR2032 battery - what does it mean?

CR2032 batteries are a disk power supply that is used to operate various devices, car alarms, etc. Most often they can be found in wristwatches. To choose them correctly, you need to know their properties and main characteristics. It would also be a good idea to pay attention to the brand of the product, since the performance and service life of the battery depends on this. The shelf life is about 10 years.

They are distinguished by their ease of maintenance and replacement. To perform the last operation, you need to unscrew the screws of the protective cover. And it doesn’t matter where you change it - in the watch or in the car alarm key fob. It is important to observe polarity.

It is worth noting that some modern and expensive watch models are made in such a way that it is quite difficult to change the battery yourself. On top of that, some elements of the accessory can be damaged, which can ultimately result in unnecessary expenses. For this reason, if you do not have experience in replacing a CR2032 battery, it is better to contact a specialist.

Some signs will tell you when it is time to replace the battery. For example, if we are talking about the clock, it will start to lag. If we are talking about a car alarm, then the indicator light on the key fob will blink. If it is not there, then it is quite simple to understand that the battery needs to be replaced - the key fob stops responding at a great distance. Modern remote controls for car alarms can be equipped with a charge indicator. When its level is critical, it is time to replace the battery.

If for some reason you were unable to purchase a CR2032, then it can be replaced with some similar drives. These include:

• DL2032;
• 5004LC;
• SB-T15;
• BR2032.

It is worth remembering that it can even be replaced by CR2016. However, this requires the use of 2 of these batteries.

Characteristics of CR2032 battery

The parameters for this element are as follows:

• diameter is 2 centimeters;
• width - 3.2 millimeters.

Reference. These parameters are given in the name of the battery - CR2032.

The weight of the product does not exceed 6 grams. The remaining symbols that are written in the name also have a certain meaning:

1. C - indicates that the “tablet” is lithium.
2. R (Round) - says that it is round in shape.

In general, the CR2032 is classified as a disk device in terms of its size.The electrolyte that is poured inside the product is manganese-lithium. Thanks to this combination, it has a long service life. The battery voltage it supplies is 3 Volts. Its main feature is that it can function at critical temperatures: the range of use and storage of the “tablet” is from -40 to +60 degrees Celsius.

This is interesting! It is worth noting that in this indicator, the CR2032 significantly outperforms its “brothers,” i.e., other batteries. The fact is that some AA batteries (saline type) stop functioning when the temperature drops even slightly below zero degrees.

Advantages and disadvantages

This battery has a huge number of advantages:

• Constantly high voltage, which ensures the correct functioning of the device throughout its entire service life;
• high level of energy intensity;
• compact size and light weight, which allows them to be used in small devices;
• long service life;
• thanks to production technologies, the CR2032 battery has a long shelf life of up to 10 years - some modern models from leading manufacturers can be stored for up to 15 years;
• they work even at low and high temperatures - this is due to the fact that they do not contain water;
• are not subject to destruction.

The only drawback of such products is the high price. Therefore, many users opt for budget battery options. However, they do not have a long service life and can fail at low temperatures (this is especially true for Chinese-made batteries).

Scope of application CR2032

This storage element has found wide application in many household appliances. As mentioned above, they are most often used in wristwatches and key fobs for car alarms, and in addition:

• in motherboards of personal computers - for this reason, many users began to call them computer batteries;
• in classic LED flashlights;
• in children's toys;
• in calculators;
• in laser pointers;
• in some residential calls;
• in modern electric toothbrushes;
• in control panels;
• in communicators.

Is it possible to charge CR2032

It’s worth noting right away that this type of battery is not rechargeable, so it cannot be charged, and there are two main reasons for this:

• the battery may become depressurized and, as a result, an explosion will occur;
• a fire may occur.

However, some folk craftsmen still tried and learned to restore the charge. One of the simplest methods is regular heating using a lighter or gas stove. At the same time, it is worth making sure that overheating does not occur, which can end sadly. In addition, you can try to restore the charge in the following ways:

• connect the battery to the phone charger - observe the polarity;
• Rub the minus on the carpet for 30 seconds or even one minute.

But even if the attempt to charge the battery is successful, it will maintain the voltage for no more than a day, after which it will discharge again. Considering this fact, as well as the fact that charging batteries is dangerous, it is best to purchase a new one.

Recommendations for choosing a CR2032 battery

In order for the device to work correctly and for as long as possible, you need to choose the right battery.To do this, consider the following factors:

1. Battery type. It depends on where the CR2032 battery will be used.
2. Rated voltage. This indicator is measured in volts, and it can vary in the range from 1.5 to 12 volts. If you need to get more than 3 V, then to do this, connect several batteries into a single circuit.
3. Charging capacity. Measured in amperes/hours.
4. Current. In some cases, the manufacturer indicates resistance instead of current.
5. Manufacturer. In most cases, this factor plays a huge role. For example, products from more well-known brands are characterized by a long service life and stable operation. If we talk about some batteries from China, they can fail much earlier than the stated period.

Among the most popular manufacturers, it is worth highlighting several brands.

For example, Camelion. It has excellent self-discharge resistance and a long service life.

Duracell is one of the most famous manufacturers. It has the same advantages as the previous option.

The advantage of Energizer is its long service life even under conditions of intensive daily use. They feature increased capacity.