What is button cell?

Button cell, as its name implies, is a button-shaped battery, also called coin battery. It is about the size of 1 yuan coin, and there are many models. It is also widely used.

CR series: electronic scales, remote controllers, ic cards, computer motherboards, calculators, Internet of Things, handwriting boards, shoe lights, LED lights, electronic watches, etc.

CR wide temperature battery -40+ 125 degrees: temperature and humidity sensor, electrical equipment, mobile police terminal, automobile tire pressure gauge, industrial control motherboard, etc.

LIR lithium ion series: Bluetooth headset, medical equipment (blood glucose meter, gastroscope capsule, hearing aid), function: rechargeable.

AG series: toys, flashlights, hearing AIDS, calculators, electronic watches, burglar alarms, watch movements, electronic desk calendars.

AA, AAA dry batteries, 23A, 27A: remote controllers, national defense, scientific research, drilling, telecommunications, navigation, aviation, medical care, high-altitude meteorology and industrial and agricultural production lighting, electronic computers, televisions, tape recorders, cameras, electronic clocks and electronic watches. ?

Welding leg, welding wire and battery clip: all the above batteries can be processed at one time, and the scope of application can be used.

I have a selection list here for your reference:

3V Primary Button Battery Selection Table

3.7V rechargeable battery selection table

-40+ 125℃ wide temperature button battery selection table