18650 where are lithium batteries widely used? First of all, in the energy battery industry, the application of lithium two batteries has benefited from its superior performance. With the continuous development of the lithium two cell technology, it has been widely used in our daily life. More and more rechargeable batteries are more and more popular with consumers. Pay attention to the energy battery industry, fully understand the battery, and let us do "for my own use", at present, 18650 lithium batteries in the following areas have certain applications.