Common sense of CR2477 button battery:

1. Button battery, also called button battery, refers to a battery whose shape is like a small button; 2. Button battery is small in size, with a diameter ranging from 4.8mm to 30mm and a thickness ranging from 1.0mm to 7.7mm; generally Used as a backup power supply for various electronic products, such as computer motherboards, electronic watches, electronic dictionaries, electronic scales, memory cards, remote controls, electric toys, etc.; 3. LR---alkaline--1.5V, SR--- Silver oxide--1.55V, CR---lithium battery--3V, ZA---zinc empty--1.4V. 4. When purchasing, mainly look at the digital model. The prefix and suffix represent the chemical composition of the battery. There are multiple groups of digital models in the same product, which are different names in different countries and regions. They belong to the same product. Please look carefully to avoid buying mistakes. ;Please confirm the positive and negative poles of the battery before use. Do not charge the battery, burn it, mix it with old batteries or different types of batteries, and take out the batteries if the electrical appliance is not used for a long time.