Button batteryIt is also called a button battery, which refers to a battery with a characteristic size like a small button. Generally speaking, the diameter of a button battery is larger than its thickness. Batteries are distinguished from the appearance design and can be divided into cylindrical batteries, button batteries, and square batteries. Special-shaped batteries, etc.

Button batteries generally include 3v and 1.5v, which are mostly used in various IC motherboards and electronic equipment. 3v batteries are CR927, CR1216, CR1225, CR1620, CR1632, 2032, etc.; while 1.5v batteries are AG13, AG10, AG4 and so on. Button batteries are also divided into primary button batteries and double-charge button batteries. The difference lies in whether they can be used for double charging. Let me share with you some basic knowledge about the use of button batteries. and methods.

1. The difference between CR2032 and CR2025

The data behind the CR-type button battery has its own special meaning. For example, CR2032 battery, 20 indicates that the diameter of the battery is 20 mm, 32 indicates that the height of the battery is 3.2 mm, and generally the rated capacity of CR2032 varies from 200-230mAh. , CR2025 rated capacity varies from 140-170mAh.

2. Storage time and methods

The key to how long a button battery can be stored depends on the brand, which is related to the quality of the battery itself. Generally speaking, it is likely that there will be problems after being stored for more than half a year. Generally, a phone with better quality can be stored for 5 years, and the capacity retention rate can reach 80%. Above. In terms of storage, ensure shading and store in a dark, low temperature, and airtight condition.

3. If you use a 3V button battery to drag a 3V LED light, how long can it be dragged?

Here are several key factors. The first is the performance loss of the product itself. The lower the loss, the longer the battery drag time. The second is the size of the battery, that is, the capacity. The larger the capacity, the brighter the light. Generally speaking, models with normal specifications can be used continuously for 78 hours without any problem. Of course, adding a power resistor to the small LED light can also increase the lighting time.

4. Using a 3v button battery with a capacity of 220MA for infrared remote control, how long can it be used for continuous transmission? Can it be used for one month?

Normally, if it is not controlled and continues to emit, it may be difficult to use it for a day. Generally, the current of infrared signals is 5-15mA, etc. You can calculate the volume. For 30 days in a month, if you use 30mAH every day, the working current It can be used for a month if it is controlled at 1mA. Or it can be used for a month by using the intermittent method of transmitting for 0.1s and stopping for 0.4s.