18650 lithium ion battery advantages:

1, large capacity 18650 lithium-ion battery capacity is generally between 1200mah ~ 3600mah, while the general battery capacity is only 800mah or so, if combined into 18650 lithium-ion battery packs, that 18650 lithium-ion battery packs are casually can break through 5000mah.

2, long life 18650 lithium-ion battery has a long service life, the normal use of the cycle life of up to 500 times or more, is more than twice the ordinary battery.

3, high safety performance 18650 lithium-ion battery safety performance, non-explosive, non-combustible; non-toxic, non-polluting, certified by the RoHS trademark; a variety of safety features in one fell swoop, the number of cycles is greater than 500 times; high temperature performance is good, 65 degrees under the conditions of the discharge efficiency of 100%. In order to prevent the battery short circuit phenomenon, 18650 lithium ion battery positive and negative poles are separated. So its possibility of short circuit phenomenon has been minimized. You can add a protection plate to prevent the battery from overcharging and overdischarging, which also extends the service life of the battery.

4, high voltage 18650 lithium-ion battery voltage is generally 3.6V, 3.8V and 4.2V, much higher than the nickel-cadmium and nickel-metal hydride batteries 1.2V voltage.

5, there is no memory effect in the charging before not having to empty the remaining power, easy to use.

6, small internal resistance: the internal resistance of the polymer battery cell is smaller than the general liquid battery cell, the internal resistance of the domestic polymer battery cell can even be achieved below 35m, which greatly reduces the self-consumption of the battery and extends the standby time of the cell phone, and can fully meet the international standards. This support for large discharge current polymer lithium batteries is the ideal choice for remote control models, the most promising alternative to nickel-metal hydride batteries.

7, can be combined in series or parallel into 18650 lithium-ion battery packs

8, the use of a wide range of laptop computers, walkie-talkies, portable DVD, instruments, audio equipment, aeromodels, toys, video cameras, digital cameras and other electronic equipment.

18650 lithium ion battery disadvantages:

18650 lithium-ion battery's biggest disadvantage is that his volume has been fixed, installed in some notebooks or some products is not very good positioning, of course, this disadvantage can also be said to be advantages, this is relative to other polymer lithium-ion battery lithium-ion batteries can be customized and can be transformed in terms of the size of the battery that is a disadvantage. And related to some of the specified battery specifications for the product has become an advantage.

18650 lithium-ion batteries are prone to short-circuit or explosion, also related to polymer lithium-ion batteries, if compared to the general battery, this disadvantage is not so obvious.

18650 lithium ion batteries are produced with protective circuitry to prevent the battery from being overcharged and discharged. Of course, this about lithium-ion batteries are necessary, which is also a common disadvantage of lithium-ion batteries, because lithium-ion batteries are basically lithium cobalt material, and lithium cobalt material lithium-ion batteries can not be discharged at high currents, security is poor.

18650 lithium-ion battery production conditions require high, related to general battery production, 18650 lithium-ion battery production conditions require high, which undoubtedly added production costs. 18650 battery life theory for the cycle charging 1000 times. Due to the large capacity per unit density, most of them are used in laptop batteries. In addition, due to the very good stability of 18650 in the work, they are widely used in major electronic fields: commonly used in high-grade flashlights, portable power supply, wireless data transmitters, electric heating warm clothing, shoes, portable instruments, portable lighting equipment, portable printers, industrial instruments, medical instruments and so on.