Electronic cigarette batteries are rechargeable lithium-ion cells that provide the electrical energy required for devices that utilize external batteries. In modern electronic cigarette devices, the most common external battery sizes are the 18650 and 21700 formats.
Not all electronic cigarette devices use external batteries. In some models, the battery is integrated into the device body and cannot be removed by the user. For models with external batteries, cells that meet the battery size, quantity, and technical requirements specified by the device manufacturer must be used.
When choosing an electronic cigarette battery, it is incorrect to look only at the mAh capacity or the high amperage value written on the product. The battery's physical size, continuous discharge capacity, authenticity, condition, and the device's requirements should all be evaluated together.
In electronic cigarette devices with external batteries, the battery is a rechargeable power source that provides energy to the electronic circuit within the mod.
Battery energy is regulated by the device's chipset and transferred to the coil system.
An electronic cigarette battery;
For various spare parts and accessories, you can check the Electronic Cigarette Accessories category.
Fixed inside the device body. In normal use, the user does not remove or replace the battery, and the device is charged via a charging port.
Uses a removable cell such as 18650 or 21700. The battery can be removed from the device by the user.
While integrated batteries are common in a significant portion of pod devices, the use of single or dual external batteries can be seen in high-power Box Mod models.
The 18650 battery is one of the cylindrical lithium-ion cell formats used in many electronic systems, including electronic cigarette mods.
The name 18650 generally refers to the approximate physical dimensions of the cell:
Actual cell dimensions may show slight variations depending on the manufacturer and the outer wrap structure.
The 21700 battery is a larger cylindrical lithium-ion cell format compared to the 18650.
The general dimension class is approximately;
The fact that a 21700 cell is larger does not automatically mean that every 21700 battery is more powerful than every 18650 battery. Real performance depends on the cell's own technical specifications.
Has a smaller physical size and is a common format used in a large number of electronic cigarette mods for a long time.
Has a larger physical volume, and options providing higher capacity or higher power may be found depending on the model.
18650 and 21700 batteries are not directly interchangeable. The device's manual must be checked to see which battery formats it supports.
It can only be used if the device manufacturer has provided 18650 support.
In some 21700 mods, an 18650 adapter or battery sleeve comes in the box, and the device supports both battery formats.
For example, some current high-power mods are offered with an 18650 adapter along with a 21700 battery compartment.
A different battery size should not be used in a device that does not have an adapter and where the manufacturer does not specify 18650 support.
mAh stands for milliampere-hour and is used to express battery capacity.
In general, higher capacity can contribute to longer operating time under the same usage conditions.
However;
Highest mAh does not equal the best electronic cigarette battery. In addition to capacity, the battery's safe continuous discharge capacity and the device's power requirements are also important.
The ampere value in battery technical specifications is related to the electrical current the battery can provide.
In devices that require high power, such as electronic cigarettes, the continuous discharge rating specified by the manufacturer is particularly important.
Short-term high values seen on the battery or in sales listings, such as "max" or "pulse," should not be considered the same as continuous discharge capacity.
CDR - Continuous Discharge Rating refers to the discharge current that the battery can provide continuously under conditions determined by the manufacturer.
When evaluating a battery, instead of just high capacity or promotional maximum current values, the continuous discharge specifications in the manufacturer's technical data sheet should be taken into account.
The term High Drain is used for cells designed for applications requiring high current.
However, "high drain" by itself is not a technical compatibility guarantee.
The battery's;
should all be evaluated together.
The best electronic cigarette battery is not the same for all devices.
The right battery should be evaluated as follows;
Do not choose a battery based solely on "highest amperage" or "highest mAh". The device manufacturer's technical requirements always take priority.
There are numerous 18650 cells that have the same physical dimension class but differ in capacity and discharge characteristics.
For example, in current manufacturer catalogs, you may find;
These capacity values do not indicate electronic cigarette compatibility on their own.
There are also cells with different capacity and discharge classes in the 21700 format.
In current manufacturer catalogs, different 21700 products can be seen in capacity classes of approx. 4000mAh, 4100mAh, 4500mAh, and higher.
However, the fact that a cell is simply a 21700 or has a high mAh value does not mean it is suitable for your device.
The name VTC6 is a model name that has been used for many years, especially in 18650 battery searches.
In current manufacturer technical information, the US18650VTC6 model is listed by Murata with the following values;
Important: Some manufacturers of industrial cylindrical Li-ion cells do not produce these products directly for individual consumer use, but for integration into final products with protection circuits. The fact that a cell is sold in the market under the name "electronic cigarette battery" does not mean that this use is approved by the manufacturer.
Murata US21700VTC6A is a cell in the 21700 format.
In the current Murata product catalog, VTC6A is listed with approximately;
VTC6 and VTC6A are not the same battery. VTC6 is an 18650, while VTC6A is listed in the 21700 format in the current Murata catalog.
In lithium-ion cells, counterfeit, mislabeled, or rewrapped products can cause significant safety problems.
When purchasing a battery, check the following;
Cells from unknown sources, removed from dismantled battery packs, or with unknown technical history should be avoided.
Rewrap refers to products where a new wrap with a different brand or technical information has been applied to the exterior of the original cell.
The brand on the outer wrap may not always indicate the actual cell manufacturer.
For this reason, battery evaluation should not be based solely on very high mAh or ampere values written on the outer label.
The outer wrap of a cylindrical lithium-ion battery plays an important role in protecting the metal body of the cell from unwanted electrical contact.
If the battery wrap is;
the battery should not be used.
A damaged battery must be replaced appropriately.
It should not be carried unprotected.
If a spare lithium-ion battery is carried loosely in the same pocket or bag with keys, coins, or other metal objects, the battery terminals can short-circuit.
When carrying a spare battery, use;
should be used.
Do not throw a spare battery into your pocket naked. A metal key or coin short-circuiting the battery terminals can create a risk of overheating and fire.
The correct way to carry a spare battery is to prevent the battery terminals from coming into contact with other metal objects.
Each battery must be protected separately and carried in a safe box or case against physical impacts.
For dual-battery devices, the pair of batteries used together should be kept together as much as possible.
In dual-battery devices, two batteries work simultaneously.
Therefore, manufacturers generally recommend using batteries that have the same;
as a matching pair.
Married Battery refers to two cells kept as a pair to be used together in a dual-battery device.
In normal use, these batteries should be;
managed in this way.
Using old and new cells with significantly different usage histories as a pair in a dual-battery device is not recommended.
The capacity and internal resistance behavior of the two cells may differentiate over time.
If batteries are being renewed for a dual-battery device, it is more correct to treat the two cells used as a pair together.
The device operates with one 18650 or 21700 cell. More compact body designs are possible.
Uses two cells. It is common in device designs that can provide higher power and usage time.
The number of batteries is a design feature determined by the device manufacturer and cannot be changed by the user later.
Some current mods support two different battery formats.
For example, in the current technical specifications of the Vaporesso ARMOUR MAX;
support is offered.
Conversely, different current mods like the VOOPOO DRAG 5 are designed directly for two 18650 batteries.
Therefore, battery format should be checked on a device-by-device basis.
External batteries can be charged using the internal charging system supported by the device or a compatible external battery charger.
In the charging method, the following must be considered;
This depends on the mod used.
Some devices with external batteries can charge the batteries inside the device via USB Type-C. Some users use a suitable independent battery charger.
In both cases, the charging system must be compatible with the technical specifications of the cell.
Lithium-ion batteries should not be left unattended while charging.
It is not recommended to leave batteries charging overnight or for a long time when the user is not in the environment.
If the battery or device heats up unusually during charging, usage should be stopped.
Batteries may heat up slightly during normal use, but an unusual or rapid temperature increase is a situation that should be taken into account.
Overheating can be caused by different situations such as;
If the battery heats up unusually, the device should not be used, and the battery should be checked safely.
A lithium-ion battery showing swelling, deformation, crushing, leakage, or physical damage should not be used or charged.
A damaged battery should be delivered to an appropriate waste battery collection channel.
There is no fixed month or year value applicable to all users for batteries.
Situations where battery replacement may be necessary include;
Lithium-ion battery life varies according to usage and charging conditions.
Battery life can be affected by;
Therefore, it is not correct to give a fixed duration for all electronic cigarette batteries, such as "change every 6 months" or "lasts 2 years".
Unused external batteries should be stored;
It is not appropriate to leave the battery in the vehicle for a long time, especially in summer months.
It can be carried, but the battery should not be left loose in the bag.
Since keys, coins, USB cable tips, or other metal parts can come into contact with cell terminals, the battery should be kept in a separate protective box or case.
Rules regarding the transport of lithium-ion batteries and electronic cigarette devices by plane should be checked separately according to the airline and country.
In international aviation practices, carrying spare lithium-ion batteries in carry-on baggage and protecting their terminals separately to prevent short circuits is a basic safety practice.
Check the current rules of your airline for electronic cigarette devices and spare lithium batteries before traveling.
In many aviation regulations, there is a mandatory carry-on requirement for spare lithium-ion batteries instead of checked baggage.
Batteries must be protected separately against short circuits.
Since airline companies may apply additional restrictions, the carrier's current rules should be checked before traveling.
Wh - Watt-hour is the unit of measurement expressing the energy capacity of a battery.
The Wh value is used especially in air travel and battery transportation.
Single-cell electronic cigarette batteries like 18650 and 21700 generally have a much lower Wh capacity compared to large battery packs; however, transport rules still apply.
In cylindrical cells, the positive (+) and negative (-) poles must be inserted in the correct direction according to the markings on the device.
It is not correct to force the battery in the opposite direction or ignore the polarity markings in the battery compartment.
The device's battery cover and terminals must be kept clean, dry, and undamaged.
A cell that has gotten wet or is suspected of being damaged by contact with liquid should not be used.
Physical damage and liquid contact in lithium-ion batteries should be considered in terms of safety.
If the battery has fallen hard, the outer wrap, poles, and metal body should be checked.
A battery with crushing, denting, tearing, or other physical damage should not be used.
A short circuit is the unintentional connection of the positive and negative terminals of the battery with a very low-resistance connection.
Especially if a bare spare battery comes into contact with a key or coin in your pocket, it can cause a short circuit.
A short circuit can cause the lithium-ion cell to heat up very rapidly and lead to serious safety risks.
Since there are no protections provided by electronic chipsets in mechanical mods, battery selection and electrical safety require more advanced technical knowledge.
Cell selection should not be made based only on coil ohm value or simple tables on the internet.
Mechanical systems should not be used without knowing the technical limits of the battery and device manufacturer.
In regulated mods, the chipset can offer different protection systems such as;
Since this electronic control structure is not present in mechanical mods, the same usage conditions should not be assumed in terms of battery safety.
The electronic cigarette spare battery is the battery used as a backup to the existing cell in devices with external batteries.
If a spare battery is to be kept, the most important issue is safe transport and storage.
The battery should be maintained;
In buy electronic cigarette battery options, do not choose a product without checking which battery format your device uses.
Especially the information in the product description;
must be checked.
Electronic cigarette battery prices may vary according to cell manufacturer, model, capacity, battery format, and technical performance class.
In price comparison, instead of looking only at the cheapest product or the highest capacity, the authenticity and technical specifications of the battery should be evaluated.
Since the capacity and physical structures of 18650 and 21700 products are different, it is not correct to compare them directly based solely on price.
18650 battery prices may differ according to the capacity and performance class of the cell.
Of two batteries in the same 18650 size, one may be designed for capacity and the other for high current performance.
21700 battery prices may also vary according to capacity and cell technology.
Having a higher mAh value does not mean that the 21700 cell is automatically the better option for all devices.
"Best battery" should not be determined solely by price or capacity.
The correct evaluation should be made through;
Lithium-ion batteries that have completed their useful life should not be thrown into normal household trash.
In Turkey, waste batteries can be delivered to;
When carrying waste cells, terminals must also be protected from unwanted metal contact.
It depends on the device. Some mods only support 18650, some only 21700, and some models support both battery formats with an adapter.
No. They are two cylindrical battery formats with different physical dimensions.
Not always. Its larger physical structure can provide an advantage, but correct battery selection should be evaluated together with capacity, discharge capacity, and device compatibility.
Not always. While mAh shows capacity related to usage time, the safe current the battery can provide under high power is a different technical feature.
A single ampere value is not valid for all devices. The device's power requirement and the battery manufacturer's continuous discharge technical values should be evaluated together.
Continuous Discharge Rating; it is the continuous discharge capacity. It should not be confused with short-term pulse/max values.
In the Murata US18650VTC6 technical document, it is listed with approx. 3120mAh nominal and 3000mAh minimum capacity.
No. The US21700VTC6A in the current Murata product catalog is a cell in the 21700 format with approx. 4100mAh capacity.
No. VTC6 is in 18650 form, while VTC6A is listed as a different cell in 21700 form in the current Murata catalog.
It is recommended to use matching batteries of the same brand, model, and similar usage history.
In a dual-battery device, it is not recommended to use cells whose usage history is significantly different.
Electronic Cigarette Battery
You can find the best electronic cigarette battery types on our website. Electronic cigarette batteries may vary according to their characteristics. Disposable or rechargeable batteries are available. Through our site, you can make an appropriate choice according to the electronic cigarette model you use. Those who have difficulty in finding batteries for the first electronic cigarette models, also known as first generation, can take a look at the variety on our website. We have tried to provide suitable accessories for each user. In the latest electronic cigarettes, rechargeable batteries are preferred. For the first time they will buy electronic cigarettes, they can buy rechargeable battery powered models. Not only will it save battery power, but it can be used more easily thanks to its easy charging feature.
Advantages of Rechargeable 18650 Model Electronic Cigarette Battery
The battery model, called the 18650, is rechargeable. Electronic cigarettes can be found in many places selling batteries and accessories. Our site is also sold through. It has a very practical use. It can be recharged and recharged rather than continuously changing the battery. Chargers specifically designed for the 18650 battery are also available. This prevents the electronic cigarette's charging cradle from being destroyed by frequent use. Chargers are very small and can be carried anywhere. It is healthier to charge the batteries by removing them from the electronic cigarette. In this way, the charging slot of the electronic cigarette is less used and its service life can be extended.
The Most Common Battery Problems in Electronic Cigarettes
What should be considered when choosing batteries for electronic cigarettes?
Electronic cigarette battery prices vary. Most of the time, cheap and poor quality batteries are preferred because they are affordable. Although this may seem economically economical, it can cause serious damage to electronic cigarettes. When choosing an electronic cigarette battery, quality products should be preferred. Poor quality and incorrectly manufactured batteries can pose serious health hazards. News about the explosions of electronic cigarettes can be accessed via the internet. The main source of this situation is the batteries used. An explosion may occur if the battery causes a short circuit. If the electronic cigarette is in the person's pocket during the explosion, it may cause serious burns and injuries. Therefore, it is recommended to pay attention to the electronic cigarette battery used.
If more than one battery is used as an e-cigarette battery, it should be ensured that the batteries have the same values. Using batteries with different characteristics in terms of power or mAh may cause various problems. If one of the batteries used runs out earlier, the other runs out later, there may be problems. When both batteries are fully charged, they must be inserted and observed again at the same time. Any wear, peeling, impact or liquid contact on the insulator part of the batteries should not be used. The insulating part is placed to prevent short circuit. A problem in this section prevents the short circuit from being prevented. Although electronic cigarette battery prices are expensive from time to time, products with very cheap prices for health should not be preferred. The most suitable electronic cigarette battery prices can be reached through our website.