What is a 18650 lithium ion battery and what is it used for?

18650 is the originator of lithium batteries. It is a standard lithium battery model set by SONY in order to save costs. Among them, 18 means a diameter of 18mm, 65 means a length of 65mm, and 0 means a cylindrical battery. Common 18650 batteries are divided into lithium batteries and lithium iron phosphate batteries. The voltage of the lithium battery is 3.6V and 4.2V, the voltage of the lithium iron phosphate battery is 3.2V, the capacity is usually 1200MAH-3000MAH, and the common capacity is 2200mAh-3600mAh. The use of 18650 lithium ion battery 18650 battery life theory is 1000 cycles of charging. Due to the large capacity of the unit density, most of them are used in notebook computer batteries. In addition, because the 18650 has a very good stability at work, it is widely used in various electronic fields: often used in high-end strong light flashlights and portable Power supply, wireless data transmitter, electric heating warm clothes, shoes, portable instruments, portable lighting equipment, portable printers, industrial instruments, medical instruments, etc. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What tests must be passed before 18650 lithium ion battery PACK?