Recommended e-cigarette battery model selection

Most of the batteries used in e-cigarettes are external lithium batteries, and some e-cigarette hosts have built-in lithium batteries or model aircraft batteries. The external lithium batteries are mostly the following types: 18650, 18500, 18350 and 26650.

　　18650 type

　　 The originator of lithium-ion batteries (a standard lithium-ion battery model set by SONY in Japan in order to save costs)

　　 The number 18 represents a diameter of 18mm, 65 represents a length of 65mm, and 0 represents a cylindrical battery. The capacity is generally between 1200mah~3600mah, most electronic cigarette devices use this kind of battery, such as: mechanical rod, pressure regulating rod, pressure regulating box;

　　18500 type

　　 The number 18 means that the diameter is 18mm and the length is 50mm, and 0 means that the battery is cylindrical. This battery has a smaller capacity than 18650, and is less used, only a few mechanical levers are used;

　　18350 type

　　 The number 18 means that the diameter is 18mm and the length is 35mm, and 0 means that the battery is cylindrical. This battery has the smallest capacity, but its volume is the smallest, which can reduce the size of the device, so there are a few mechanical rods or pressure regulating rods used;

　　26650 type

　　 The number 26 indicates that the diameter is 26mm and the length is 65mm, and 0 indicates that the battery is cylindrical. This battery has the characteristics of large capacity, and a small number of pressure regulating boxes can be used;

　　Attachment: The advantages of lithium batteries

　　 1. Large capacity, the capacity of 18650 lithium battery is generally between 1200mah~3600mah, while the general battery capacity is only about 800mah;

　　2. Long life, 18650 lithium battery 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;

3. High safety performance, 18650 lithium battery has high safety performance, non-explosive, non-combustible; non-toxic, non-polluting, and has passed RoHS trademark certification; all kinds of safety performance can be achieved in one go, and the number of cycles is more than 500; high temperature resistance performance, 65 degrees conditions The discharge efficiency reaches 100%. In order to prevent the battery from short-circuiting, the positive and negative electrodes of the 18650 lithium battery are separated. Therefore, the short-circuit phenomenon may have been reduced to the extreme. A protection board can be installed to avoid overcharge and overdischarge of the battery, which can also extend the service life of the battery;

　　4. The voltage is high. The voltage of 18650 lithium batteries is generally 3.6V, 3.8V and 4.2V, which is much higher than the 1.2V voltage of nickel-cadmium and nickel-hydrogen batteries;

　　 5. There is no memory effect, no need to empty the remaining battery before charging, easy to use;

6. The internal resistance is small, and the internal resistance of the polymer cell is smaller than that of the general liquid cell. The internal resistance of the domestic polymer cell can even be below 35mΩ, which greatly reduces the self-consumption of the battery and prolongs the standby of the mobile phone. In time, it can fully meet the international standards. This kind of polymer lithium battery that supports large discharge current is an ideal choice for remote control models, becoming the most promising product to replace Ni-MH batteries;

　　7, can be combined in series or in parallel to form a 18650 lithium battery pack;

　　 8. Wide range of use: notebook computers, walkie-talkies, portable DVDs, instrumentation, audio equipment, model airplanes, toys, camcorders, digital cameras and other electronic equipment can be used.