Application of 18650 Li-ion Battery
The 18650 lithium-ion battery has been widely used because of its light weight, large capacity, and no memory effect.
Many digital devices use 18650 lithium-ion batteries as the power source, although they are relatively expensive. Lithium-ion batteries have a high energy density, and their capacity is 1.5 to 2 times that of nickel-hydrogen batteries of the same weight, and has a very low self-discharge rate.
In addition, the lithium-ion battery has almost no "memory effect" and does not contain toxic substances, which is also an important reason for its wide application.
In addition, please note that the outside of the 18650 lithium battery is generally marked with 3.7V lithiumion battery (lithium battery) or 3.7V lithium secondary battery (lithium secondary battery), 3.7V lithiumion rechargeable battery (charged lithium battery), so users must purchase the battery must Look at the signs on the outside of the battery block to prevent the cadmium nickel and nickel hydride batteries from being mistaken for lithium batteries because they do not see the battery type.