What is the term "18,650"
18650 The numbers 18650 in lithium batteries represent external dimensions: 18 is 18mm in diameter,65 is 65mm in length, and 0 is a cylindrical battery. Common 18650 batteries are divided into lithium-ion batteries, lithium iron phosphate,and nickel-metal hydride batteries. Voltage and capacity specifications are nickel metal hydride battery voltage is 1.2V common capacity is 2500mAh, lithium ion battery voltage is 3.6V common capacity is 1500mAh-3100mAh.
Advantages of 18650 lithium battery
- high capacityThe capacity of 18650 lithium battery is generally between 1200 m a h and 3600 m a h,while the general battery capacity is only about 800mah. If combined into 18650 lithium battery pack,the 18650 lithium battery pack can casually break through 5000mah.
- long lifeLong life of 18,650 lithium battery service life is very long,when the normal use of the cycle life can reach more than 500 times,is more than twice that of the ordinary battery.
- High safety performanceHigh safety performance 18650 lithium battery high safety performance,no explosion,nocombustion; non-toxic,non-toxic,pollution-free,hrought the RoHS trademark certification; various safety performance,cycles more than 500 times; good high temperature resistance performance,65 degrees of discharge efficiency of 100%. To prevent the battery short circuit phenomenon,the positive and negative electrodes of the 18650 lithium battery are separated. So the possibility of a short-circuit phenomenon has fallen to the extreme. Protective panels can be added to avoid the battery overcharging and discharging,which can also extend the service life of the battery.
- High voltageThe voltage of 18,650 lithium batteries is generally 3.6V,8V and 4.2V,much higher than the 1.2V voltage of nickel-cadmium and nickel-metal hydride batteries.
- There is no memory effectNo memory effect does not have to empty the remaining power before charging,easy to use.
- Internal resistance is smallSmall internal resistance: the internal resistance of polymer cell is smaller than that of general liquid cell,and the internal resistance of domestic polymer cell can even be less than 35m Ω,which greatly reduces the power consumption of the battery,extends the standby time of the mobile phone,and can completely reach the level of line with international standards. This polymer lithium battery supporting the large discharge current is the ideal choice for the remote control model,becoming the most promising alternative to the nickel-metal hydride battery products.
Can be in series or paralleIt can be combined in series or in parallel into a 18650 lithium battery pack.
- Wide range of use.