About batteries

What is the best battery for vaping?

Mods are powered by either a built-in or a removable battery. Advanced vapers prefer the removable battery because they are more versatile and are safer to charge. 18650 batteries are perfect for vaping because it gives you more control over your mod performance and battery quality.

How to pick the best type of battery?

Here is  four important qualities for 18650 batteries:

High capacity (mAh)

Battery capacity is measured in milliampere hours or mAh. This indicates how many milliamps you can draw from the battery in a specific amount of time. There are plenty of factors affecting battery performance. Some devices consume power more than others. Batteries also deteriorate over time. They are not 100% efficient so this formula may vary. A 2500mAh battery will not always offer 2500 milliamps for one hour. The capacity rating in milliampere - hours is only used to give you a rough idea which batteries last longer than the others. If you have a 2500mAh battery, you will most likely need to recharge it more often than a 3000mAh battery.

High current rating (amperage)

Amperage is the amount of current the battery can offer at one time. A rating of 1 amp-hour should be able to continuously supply a current of 1 amp for an hour, or 2 amps for half an hour, before becoming completely discharged. The higher the current, the higher the wattage output. Whether you are using a regulated or unregulated mod, your battery should be able to deliver the current that you need without overheating. You can have a high capacity battery or a high current rated battery but not both. While a 40A battery would seem like the perfect choice, the tradeoff is that the capacity will only be around 1500mAh. Vaping batteries usually come in three categories: high amp and low capacity, high capacity and low amp, and some that try to strike a balance between the two. When choosing a vape battery, look for one that delivers the current rating that you need without overheating.

High voltage when vaping

For mechanical and unregulated devices, high voltage means that the device will deliver more current to the coil. A hotter coil translates to more vapor and flavor, creating "hard hits" that cloud chasers enjoy. For regulated devices, high voltage means that the battery won't have to work very hard. The higher the voltage, the less current is drawn from the battery.

Low  operating temperature

Exploding batteries give vaping a bad name. There have been numerous reports of overheating vape batteries sending people to the hospital, which is why battery temperature is crucial. Apart from safety, operating temperature is also important to battery life. Extreme temperature is the main cause of premature aging and damage to your vape battery. If the battery gets too hot due to improper use or lack of proper venting, it could burst and result in serious injuries. The best vape battery for you is one that not only runs at the highest voltage for extended periods but also operates at the coolest temperatures.

About batteries

Battery labels are peppered with numbers and letters that are extremely important for vapers. But if you don't know much about battery chemistries, these tidbits of information may be confusing at first. Here is a brief glossary of battery terms that you need to be familiar with.

I: Lithium-ion battery

M: Positive ion is manganese

C: Positive ion is cobalt

N: Positive ion is nickel

F: Positive ion is iron

R: Shape is round

F: Shape is flat

18650 battery is 65mm tall and 18mm thick.  Most 18650 batteries produce 3.7V and chargers automatically shut down when the battery reaches 4.2V. A vape battery with INR 18650 on its label means it is a lithium-ion battery with a nickel positive ion, round shape, and 65mm by 18mm measurement. A vape battery with IMR 18650 2500mAh 3.6V on its label means it is a lithium-ion battery with a manganese positive ion, round shape, 2500mAh capacity, 3.6V nominal voltage, and 65mm by 18mm dimensions. IMR are round LiMN batteries. They are also called High Drain, Safe Chemistry, or Unprotected LiMN batteries. They are the safest batteries available for vaping. Using safer chemistry, they don't require a built-in protective circuit unlike Lithium-Ion (Li-Ion) or Lithium Cobalt batteries (ICR). They have higher tolerance to stress, but may still vent if failing. Failures with LiMN batteries are much less dramatic than with a Li-Ion or ICR, which are quick to vent violently in flames and possibly explode.

IMR batteries should be used with regulated box mods and also with unregulated mods.

Depending on your mod setup, you will choose a shorter IMR 18350, medium length IMR 18500, longer IMR 18650, or a thicker IMR 26650. Check your User Manual for the size required if you are not sure.

18650 batteries class

There are five general categories that you can use as buying guide.  Classes 1,2,3,4 and 5 are based on battery capacity:

1. Class one - 3500mAh   

                                                                                                                         LG MJ1 18650 Batteri


Ultra-high density up to 3500mAh

Very low discharge up to 10A

Recommended usage: no more than 30 watts

Mechanical mods: 0.4 ohm or higher

Average voltage: 3.6V

Class 1 batteries have the highest capacity at 3500mAh. Because of the capacity versus current rating tradeoff, expect these models to have the lowest amps. Some are even lower than 10A. These batteries are ideal for vaping at 30 watts or lower, with support for resistances as low as 0.4 ohm. The biggest brands such as Samsung and Sony have yet to come up with 18650 batteries in this range.

 2. Class two - 3000mAh

                                                                                                          Samsung INR18650-30Q Batteri

High density up to 3000mAh

Low discharge up to 15A

Recommended usage: 30 to 60 watts

Mechanical mods: 0.27 to 0.4 ohm

Average voltage: 3.6V

If you are looking for the best battery capacity with a slightly higher discharge, this is the category for you. Class 2 batteries have a 3000mAh capacity and 15A rating. These are ideal for vaping at 30 to 60 watts, with support for resistances as low as 0.27 ohm.

3. Class three - 2500mAh

                                                                                                                     Samsung INR18650-30Q

Medium density up to 2500mAh

Medium discharge up to 20A

Recommended usage: 40 to 80 watts

Mechanical mods: 0.19 to 0.26 ohm

Average voltage: 3.7V

Class 3 batteries are great for mid-wattage vapers. While capacity is lower at 2500mAh, the discharge rate goes up to 20 amps. These batteries support resistances as low as 0.19 ohm and vape well at 60 to 80 watts.

4. Class four - 2000mAh

                                                                                                                 Sony US18650VTC4 Batteri

Low density up to 2000mAh

High discharge up to 25A

Recommended usage: 60 to 120 watts

Mechanical mods: 0.15 to 0.18 ohm

Average voltage: 3.7V

Class 4 batteries have a lower capacity of 2000mAh and higher amperage of 25 amps. These batteries are ideal for vaping at wattages as high as 80 to 120 watts with atomizer resistance of 0.15 ohm.

 5. Class five - 1500mAh

                                                                                                               LG HB6 18650 batteri

Very low density up to 1500mAh

Ultra high discharge up to 30A

Recommended usage: higher than 120 watts

Mechanical mods: 0.14 to 0.12 ohm

Average voltage: 3.6V

Class 5 has the lowest capacity at 1500mAh but with the highest discharge rate of up to 30amps. They are ideal for high-wattage vaping above 120 watts with support for extremely low resistances of 0.12 ohm.


1. Check your 18650 batteries for defects. 18650 batteries can become damaged. If you have a battery that is peeling on the outside, do not use it. This can be a safety hazard, so it is important to replace your e-cigarette battery as soon as you see signs of wear and tear. Check the outer wrapping to make sure there are no dents or holes before you use your batteries.

2. Storage safety. It’s best and safest to store your 18650 batteries in a plastic case when they are not in use. Many e-cigarette battery explosions come from improper storage. Be sure to avoid direct sunlight, or leaving your battery exposed near any flammable material.

3.DO NOT leave your 18650 batteries loose in a purse, pocket or drawer. Contact with any other metal can be dangerous.

4. Safe E-cigarette battery care . To make sure your e-cigarette battery is safe, you need to clean it if it gets dirty. DO NOT LET YOUR E-CIGARETTE BATTERY COME INTO CONTACT WITH WATER. To clean your 18650 battery safely, we recommend using a tissue with a small amount of alcohol to remove any dirt or debris.

5. Charge your e-cigarette battery safely

It’s crucial to be careful when charging your e-cig battery, as many 18650 battery explosions occur while the battery is charging. Be sure to only use the charger that is designated for you vape battery. Using a different charger can cause the battery to overcharge and overheat. It’s also important to make sure you don’t overcharge your battery, even if you are using the correct charger. To avoid e-cigarette battery explosions, remove your e-cig battery from the charger once it is fully charged. Undercharged 18650 batteries also pose a potential danger, so make sure your battery is fully charged (but not overcharged) before you put it in your mod.

6. Insert your e-cigarette battery correctly

Before you put an 18650 battery in your vape mod, make sure that you follow the instructions and insert your vape batteries properly.

7. DO NOT stack your batteries.

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