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Contact:Miss  Hu 
Tel:18926805906
Tel:0769-28680655 
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18650 lithiubattery What are the advantages and disadvantages?

 18650 means 18 millimeters in diameter and 65 millimeters in length. The battery model is 14500, diameter 14 mm, length 50 mm. General 18650 batteries used in the industry are more civil rarely, common also in the laptop battery and high-end flashlight with more.

18650 is only the size of the battery model, according to the type of battery can be divided into lithium-ion 18650, lithium iron phosphate 18650, nickel-hydrogen 18650 (rare), the common 18650 is lithium-ion.
Its advantages:
1, capacity 18650 lithium battery capacity is generally between 1200mah ~ 3600mah, while the general battery capacity is only about 800, if the combination of
To 18650 lithium battery pack, 18650 lithium battery pack that is casual can break 5000mah.
2, long life 18650 lithium battery life is very long, the normal use of the cycle life of up to 500 times more than ordinary batteries more than twice.
3, high safety performance 18650 lithium battery safety performance, no explosion, no combustion; non-toxic, non-polluting, RoHS trademark certification; all kinds of safety performance at one go, cycle times greater than 500 times; high temperature performance, 65 degrees conditions Discharge efficiency of 100%. In order to prevent the phenomenon of battery short-circuit, 18650 lithium battery positive and negative are separated. So it may have short-circuit phenomenon has been reduced to the extreme. You can install the protection board to avoid the battery overcharge and over discharge, so that can extend the battery life.
4, the voltage high 18650 lithium battery voltage is generally 3.6V, 3.8V and 4.2V, much higher than the nickel-cadmium and nickel-metal hydride battery 1.2V voltage.
5, no memory effect in the charge before the remaining power does not have to empty, easy to use.
6, the resistance is small: the internal resistance of polymer batteries than the general small liquid batteries, domestic polymer batteries can even do 35mΩ internal resistance below, greatly reducing the battery power consumption, extend the standby mobile phone Time, can reach the level with international standards. This support of large discharge current polymer lithium battery is ideal for remote control model, as the most promising alternative to nickel-metal hydride batteries.
7, can be combined in series or parallel 18650 lithium battery pack
8, the use of a wide range of notebook computers, walkie-talkie, portable DVD, instrumentation, audio equipment, model aircraft, toys, video cameras, digital cameras and other electronic equipment
 
Its shortcomings:
   18650 lithium battery's biggest drawback is that his volume has been fixed, and installed in some notebooks or some products are not very good positioning, of course, this disadvantage can be said to be advantages, which is relative to other polymer lithium batteries such as lithium batteries This is a drawback in terms of customizable and transformable sizes. And relative to some of the specified battery specifications of the product has become an advantage.
   18650 lithium battery prone to short-circuit or explosion, but also relative to the polymer lithium battery, if the battery is relatively general, this shortcoming is not so obvious.
   18650 lithium battery production are required to protect the line to prevent the battery is too much charge and lead to discharge. Of course, this is for the lithium battery is necessary, which is a drawback of lithium batteries, lithium batteries used because the basic materials are lithium cobalt oxide materials, lithium cobalt oxide materials can not discharge large current, security Poor.
   18650 lithium battery production conditions, compared to the general battery production, 18650 lithium battery on the production conditions demanding, which undoubtedly increased the production cost.
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