How long is the life of the 18650 lithium battery pack?

The 18650 lithium battery pack has a long service life, and the cycle life can reach more than 500 times in normal use, which is more than twice that of ordinary batteries. The current 3.7V 18650 lithium battery pack generally has a cycle life of about 500~1000 times, and the 3.2V 18650 lithium battery pack generally has a life of more than 2000. Of course, the premise is that the qualified battery processed by a regular manufacturer, if it is a defective or counterfeit battery , The life span will be very short. 18650 battery life theory is 1000 cycles of charging. Due to the large capacity of the unit density, most of them are used in laptop 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. The service life of 18650 lithium battery packs is only two to three years. The life of 18650 lithium battery is generally 300 to 500 charging cycles. Assuming that the power supplied by a complete discharge is Q, if the reduction in power after each charging cycle is not considered, the lithium battery can supply or supplement 300Q-500Q of power in total during its life. From this we know that if you charge 1/2 each time, you can charge 600-1000 times; if you charge 1/3 each time, you can charge 900-1500 times. By analogy, if it is charged randomly, the number of times is variable. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What kind of consequences will be caused by using UPS batteries in high temperature environments?