18650 Lithium Battery ＜1Ah
18650 lithium battery is one of the model of cylindrical lithium-ion battery. Its diameter is 18mm, height is 65.0mm and rated voltage is 3.7V.
In order to meet the requirements of more devices, 18650 lithium battery was invented. It is made by 18650 cells connected in parallel and series, so that it has larger voltage and longer discharging time.
Application: special application, robot, AGV, rail traffic, medical electronic, emergency backup battery, exploring and surveying, commercial finance, instrument, apparatus and consumer electronics.
The Best 18650 Lithium Batteries
1.Top Brand: Samsung, LG, Panasonic, Sony, BAK, LiShen are good reliable 18650 rechargeable cells
2. High Capacity
The capacity of 18650 lithium battery is generally 1200mAh~3500mAh, while the general battery capacity is only about 800mAh. 18650 lithium battery pack is connected by multiple 18650 batteries in parallel, and the capacity can exceed 5000mAh or even higher.
3. High Voltage
The voltage of 18650 lithium battery is generally 3.6V, 3.7V and 4.2V, which is much higher than that of Ni-Cd and Ni-Mh batteries for 1.2V.
4. Long Cycling Life
The 18650 lithium battery has a long cycling life with more than 500 times in general, which is more than twice that of ordinary batteries.
5. High Safety Performance
18650 lithium battery has good safety performance for no explosion nor burning. It is non-toxic, non-polluting, and it has RoHS trademark certification.
6. No memory effects: Can be recharged at any time
7. Flat top vs button top
Flat Top - The positive end of the battery is a flat surface.
Button Top - The positive end of battery is protruding.
8. Protected vs unprotected
protected 18650 battery have an electronic circuit that protects the cell from overcharge, over-discharge, over current, short circuit and heat.
Protected 18650 battery is safer than unprotected 18650 battery.
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