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How to Bring Lithium Batteries Back to Life

May. 16, 2022

How to Bring Lithium Batteries Back to Life

There are many different types of batteries, each with its own advantages and limitations. The 18650 is one of the most common batteries today. You can find them in everything from laptops to large items like electric cars.

Named after their shape and size, these lithium-ion batteries have standardized characteristics. This is because they are cylindrical, 18 mm in diameter and 65 mm long, or 18650.

They can be used as a single battery or combined into battery packs and power banks. Thus, they are used not only to power devices but also to charge them.

They are strong and powerful, but not easily accessible to most users. Some devices use 18650 batteries. This means that at some point they may need to be replaced. But if they are not easily accessible, this can be a problem.

Which household products have 18650 batteries?

As mentioned above, finding 18650 batteries themselves is not easy. Those who have the equipment cannot last forever. What is most surprising is that so many devices in our homes rely on these batteries. The most common ones are

18650 flashlights

The days of flashlights relying on non-rechargeable D or AA batteries are coming to an end. Many users want devices that last longer. Having to purchase batteries for flashlights is no fun at all.

The solution lies in purchasing a flashlight with a rechargeable battery. In this case, the 18650 is the most preferred power source in terms of its size, weight, and power. As a cylindrical lithium-ion battery, no one doubts its importance in the market. Flashlight manufacturers are taking advantage of this feature.

The Fenix PD35 is one of the best 18650 flashlights available today. It can be expensive, but it is worth the investment because it lasts a long time. They are extremely bright and easy to carry. They have a turbo brightness of 1000 lumens and are water resistant. They have six modes, including 1000 lumens, including 200 lumens in the mid-range.

They are suitable for families as well as firefighters, law enforcement, and military personnel. They are easiest to use because of their power. Therefore, their price does not scare away users.

Mobile Power

How to Bring Lithium Batteries Back to Life

People who like to travel and take pictures always want their phones and cameras fully charged. However, this is not the case. It depends on how the device is used. However, with power, you can extend the life of your battery while on the go.

18650s are one of the best batteries in these devices. They make power banks very powerful and portable.

Laptop Batteries

Even those lithium-ion battery manufacturers use specific materials to make laptop batteries; 18650 is most likely among them. Since they are usually lithium-ion batteries, handling the output distribution is not a problem. However, you must be very careful in your selection. An incorrect 18650 battery can cause a fire.

The Orbtronic 18650 is one of the best batteries overall. They come with a 3.7V and 3500mAh protective battery. They are included in laptop batteries as battery packs. However, they are very expensive.

Can I use AA batteries instead of 18650 batteries?

The use of batteries is normal everyday business. For example, the average person cannot go a day without touching or using a cell phone or other electronic device. In our homes there are other simple devices like remote controls that rely heavily on batteries, each of which is a different type.

Choosing which battery to use for which device can be confusing. 18650 and AA batteries are the most popular small batteries. Is it possible to replace a 18650 with an AA battery? This is not an easy question to answer. However, we can simplify it by explaining their differences.

Power output

The power output of AA batteries is much lower than that of 18650. The nominal voltage of each 18650 is 3.6V. AA batteries, like zinc, can only carry 1.5 volts. They also have different voltages; some have 1.2V, but the most powerful is probably 1.6V.

As you can see, the nominal voltage of a regular 18650 battery is more than twice that of an AA battery. This makes them better and more powerful.


18650 batteries are slightly larger and made in a modern design. They use real lithium-ion batteries connected to different circuits.


18650 batteries are much larger. They are longer than the size name AA batteries.

In other words, do not confuse the batteries. Use only according to the manufacturer's recommendations.

18650 batteries are rechargeable and are used to charge equipment. Type AA does not provide as much power. Piecing many of them together will probably not last as long as you would like.

Also, when purchasing these batteries, you must be careful not to damage them. AA batteries are inexpensive and available everywhere, unlike 18650 batteries. Because there are so many brands available, manufacturers use different marketing techniques to sell them. Therefore, buy AA or 18650 batteries from a trusted brand.

What other devices can use 18650 batteries?

Today, many other devices have emerged that rely on battery power. As technology takes over the world, you can expect anything from its inventors.

In this case, other devices that use 18650s include electric cars. With the world turning to green energy, it makes sense that battery manufacturers would want to think about developing the most powerful technology available.

Consider electric bicycles. A simple battery pack can make moving a bicycle faster and easier than ever before.

There is no denying that batteries are changing the world. However, not everything is suitable for your needs. It is important to invest money in the best battery chemistry. Whatever you do, do not try to use 18650 batteries in a device designed for AA batteries.