The battery is the most important component of an e-cigarette device, providing the main device with electricity for heating.E-cigarettes use lithium-ion batteries. Lithium ion batteries have high energy density and high average output voltage. Self discharge small, good battery, less than 3% per month (recoverable). No memory effect. Operating temperature range is -30℃ ~ 60℃. Excellent cycle performance, fast charging and discharging, charging efficiency up to 100%, and large output power. Long service life. It does not contain toxic and harmful substances and is called green battery. Individual vape batteries operate at a high voltage of 3.7-3.8V(3.3V for lithium iron phosphate), three times as much as older nickel-metal hydride batteries. And lithium ion battery cycle life is long, generally can reach more than 500 times, or even more than 1000 times, lithium iron phosphate can reach more than 3000 times, saving a lot of use cost. Lithium ion battery safety performance is also very good, no pollution, no memory effect. Does not contain cadmium, lead, mercury and other elements that pollute the environment. And there was no "memory effect."