22 Years' Battery Customization
Jun 05, 2020 Pageview：899
Everybody loves batteries with maximum capacity. This is because they help our gadgets to serve us for a longer period. The 18650 battery is characterized by its 18mm x 65mm size and it is slightly larger than the AA battery. It's a lithium-ion cell that is mostly used in high drain devices, flashlights, and laptops.
These batteries perform very well in such devices thanks to their superior discharge rates and high capacity. Besides, these batteries come in both button top and flat styles. The 18650 batteries also have high charge cycles of up to 300-500.
The 18650 cells are further divided into two categories i.e. protected and unprotected. When we talk about a protected battery we mean that it comes with a PCB. This PCB helps in monitoring its internal temperature and the discharge rates. But the unprotected 1860 battery does not feature a PCB board.
What is the highest capacity 18650 battery?
Most 18650 batteries have a capacity of between 1800mAh to 3500mAh. But some other companies such as Samsung and Panasonic have managed to produce more powerful 18650 cells. They range between 3500mAh and 4200 mAh.
However, the highest capacity of the 18650 that is still being shipped today is 3500mAh. You can find a higher capacity than this but most of them are fake. There are so many manufactures that are labeling batteries with fake capacities.
So if you come across anything that is greater than 4000 mAh but costs very cheap then that is a fake. Sometimes you can come across others labeled even more than 8,000mAh. The sad truth is that the industry hasn't reached that level for mass production yet.
Manufacturing companies across the world are still doing experimental research to improve their batteries. Every company wants to be the first to produce the highest 18650 battery capacity ever. The company that will make the highest capacity and quality battery are going to make a lot of cash.
These batteries are used in various devices such as laptops and others that drain a lot of power. They are more powerful than the AA cells. You can also check the capacitance of the 18650s using a multi-meter so that you can make sure that you are buying quality cells.
How many mAh is a 18650 battery?
A 18650 battery can have a capacitance of between 1800 mAh and 3500mAh.It also features a voltage of 3.7V. This battery also takes about 4 hours to charge. Besides, most devices prefer it because they can last up to 500 cycles.
It does not reduce the performance after every cycle as most batteries do. However, it stops working completely after serving the full complete cycles. These batteries are so powerful and a store about 10 or 13-watt hours.
Just like other batteries, you must take care of the 18650 so that it can last for a long period. Although it is approximated to have around 300-500 charge cycles, this battery can last much longer under good care.
Only a few 18650 brands have a capacity of more than 3500 mAh. If you find one that has more than that you will be lucky if it’s not a fake one. All of these batteries have the same size. That is why it’s referred to as 18650. The 0 represents the cylindrical shape while 18 stands for the diameter and 65 is for the height.
Companies such as Samsung have managed to create cells with more than 3500. Other companies too, but the majority of them are taking advantage of the situation by indicating the wrong mAh. Some have gone to the extent of even labeling more than 9000 mAh to lure unsuspecting buyers.
How do you buy a high capacity 18650 battery?
Choose your best shopping platform
The 18650 batteries are available across many shopping platforms. Whether it’s online or offline, options are plenty. But you should at least purchase from a trusted seller because many fake cells have flooded the industry. When buying online to make sure that you choose a reputable store such as Amazon and eBay.
Choose the right battery for the job
The 18650 batteries come in different capacitances and features. So the first step you should make is studying the type of battery that your device requires very closely. Note down the continuous discharging rate which is also referred to as the amperage capacity.
The continuous discharge rate is very important to consider because it is the rate at which current can be drawn from the battery without causing it to overheat. So if you want to buy a high capacity 18650 that is suitable for your device then make sure that the CDR is equal. Picking the wrong battery will cause the cells to overheat. This can cause an explosion or produce poisonous gases.
A battery with a higher capacity has a lower CDR. If you use a device that draws a little amount of power then it will take advantage of cells with high capacity.
Protected Vs Unprotected
When looking for 18650 cells to buy, you will need to choose between protected and unprotected batteries. Just like the name suggests, a protected cell comes with an integrated cell inside the battery pack. This circuit helps to make it safer to use by preventing extreme temperatures, short-circuiting excessive charging, and discharging. It also prevents the battery from catching fire or exploding.
The unprotected battery on the other hand does not feature an integrated circuit. This is why they are more relatively cheaper than protected cells. However, these batteries are prone to all the risks that we have mentioned above and so they must be handled with extreme care.
Avoid the fakes
If you want to have the smoothest experience with the 18650 batteries then you have to beware of the fakes. Some vendors can manage to buy low-quality cells and then rebrand them for sale on sites such as Amazon and eBay. Apart from wasting your money, buying fake batteries can be extremely dangerous. The most efficient way to determine a fake product is by checking its weight. Genuine brands have listed their weights so you can counter check and make sure that they match.
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