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Discover the 18650 Rechargeable Li-Ion Battery


18650s are currently ruling the entire electronics market and are available quite bulk in

numbers. We will focus on all the aspects in this article why you need to buy 18650 batteries

and how they can be useful to you.


What are 18650 batteries?


An 18650 is a type of Li-Ion Battery which can be recharged at any given time. You can use the

same battery again and again just by recharging it, which means you can avoid the cost of

buying a new one. The actual name is called as “18650 cells” and carries about 3.7 volts of

current in it. It is determined to range between 1800mAh to about 3500mAh in amperes.

There are two different varieties of batteries i.e. one is protected, while the other one is

unprotected. We would recommend you if you are buying 18650 cells, then go for the

protected ones. The average charge time that every 18650 cells possess is approximately 4

hours. The usual charge time varies with the amperage and the voltage of the type of charger

you are using and the type of the battery. There are lots of 18650 Cell Manufacturers in India

that you can get in touch with to know about the quality of the charger you should be using.

You can also contact the li ion battery manufacturers in India to know more about it.


The usual sizes of the batteries range between 1100 to about 1170 cubic millimeters. If you are

opting for the usual size, make sure it can be used in your AA devices as it supports mostly 3.7-

or 1.5-volts batteries.

What is protected and unprotected 18650 batteries mean?


18650 batteries that are protected usually have a circuit. The cell packaging has the circuit

embedded in it which prevents the cells from getting overcharged or overheated, which may

end up in getting a short circuit. A protected battery is determined to be safer than that of the

unprotected ones mitigating a lot of risks involved in it.


Unprotected batters are quite cheaper when compared to the protected ones, however, the

risk percentage in using the unprotected ones are significantly high as well. If you are

externally monitoring the charge and controlling the amount of electricity that passes through

the circuit, then using unprotected 18650 batteries would be efficient. It consists of a button

top, but you need to check the specifications before buying it. The unprotected ones can easily

get overheated and overcharged if you didn’t monitor it properly. The vulnerability is generally

high in the unprotected cells as it doesn’t have a circuit embedded in it that stabilizes the

electricity. You can contact any Li-Ion Battery Pack Manufacturers to gather more details

about it before opting for it.


Both the types of 18650 batteries are capable of storing about 2 aH of electricity and to a

maximum of about 3.5 aH. It has the capability to store 10 to about 13-watt-hours if you are

considering the time factor. The Batteries can be recharged about 1000 to a maximum of

about 2000 times before disposing of it, which means it can last for a long period of time.


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