Efest™ 18650 IMR 3100mAh 20A Battery

By Efest

1 review


Efest 3100mah 20A 18650 battery
Reviews for Efest™ 18650 IMR 3100mAh 20A Battery
4 out of 5, based on 1 reviews
from SoCal on
Great battery - Lasts forever, 2 days semi-high use, 3 charges per 5 ml tank is my mileage.

*warning* - This is not a 'flat top' battery - Just look at the picture! No big deal really, but when I bought them I went off description without paying too much attention to the picture. I have a cloupor mini that I wanted to use with these, but the nipple at the top prevents the battery from fitting in that specific device.
Response from Vapor Authority
Mar 04, 2016
Mittens, thank you for your comment. All of the Efest batteries offer both a button-top and a flat-top option. You can choose the type you want from the drop-down menu on the product page. We apologize for any confusion.

Efest IMR 18650 LiMn 3100 mAh Battery -  20 Amp

Efest has established a wonderful reputation as a manufacturer of top quality lithium-ion batteries. The Efest 18650 LiMn 3,100 mAh battery represents Efest’s latest and most powerful batteries to date. The wonderful batteries provide 20 amps, and are equipped with the safety of Lithium Manganese Oxide chemistry—perfect for sub-ohms vaping. This unique chemistry also offers lower internal resistance than conventional lithium-ion batteries, providing substantially superior discharge capabilities.


Carry Your Batteries Safely With The Efest PC3 Battery Holder.

Efest IMR 18650 LiMn Battery Specifications:

Manufactured By: Efest

Battery Type: Lithium Manganese Oxide

Size: 18650

mAh Capacity: 3100 mAh

Battery Structure: Flat Top or Button Top

Continuous discharge current: 20A

Maximum continuous discharge current: 20A

Pulse discharging current: 50A

Nominal Voltage: 3.7V

Peak Voltage: 4.2V

Voltage at end of Discharge: 3V

Maximum Charging Current: 5A






We strongly recommend that you do not hold batteries inside of your pocket along with other metallic items, such as keys or loose change. If the battery comes into contact with the metallic objects, it can potentially cause a short, which can be potentially dangerous. In addition, we recommend that batteries be stored separate from metallic objects. Housing them in a plastic container is a good practice, and is highly recommended.

Lithium-Ion batteries should only be purchased by adults 18-years-old or older. This battery is not intended for sale to minors under the age of 18-years-old.

Please take caution in purchasing a battery charger that is compatible with this specific battery type. Using an improper battery charger can be potentially dangerous.

Lithium-Ion (Li-Ion) batteries are made with a very different chemistry than conventional batteries. Although Lithium-Ion batteries are more powerful than conventional batteries, they do have more known risks, and can be extremely volatile and dangerous. Make sure to use caution when using and handling Lithium-Ion batteries.

Using an incorrect battery for your device can be potentially dangerous. Moreover, improperly using the correct battery can result in harm to your property or to your body. It is highly recommended that you use the appropriate batteries for your specific device, and that you are utilizing a suitable charger as well.

It is your responsibility to ensure that you know and understand the potential dangers of using Lithium-Ion batteries. We strongly recommend taking time to educate yourself as to the chemistry of, the potential hazards of, and the ways to avoid harm when using Lithium-Ion batteries prior to purchasing and using them.

We strongly recommend obtaining a minimum of 6 months’ experience prior to using Lithium-Ion batteries on your own. Please make sure that you have the adequate experience necessary prior to purchasing Lithium-Ion batteries.

By purchasing and using this product, you hereby consent to wholly taking full responsibility and sole liability for the purchase and use of this item. You further agree to hold harmless and indemnify Vapor Authority, its managers, executives, successors, shareholders, owners, employees, directors, and all affiliates from any and all liability for the usage of this product. Vapor Authority, Inc. is in absolutely no way, shape, or form liable for the harm or hazard that may arise due to the use of this product.



  1. In the event that the battery leaks, and substances such as electrolytes make contact with your eyes, make sure to avoid rubbing your eyes. Rather, immediately and thoroughly rinse your eyes out with fresh water and immediately call 911 to obtain proper medical attention, as this can cause severe permanent damage to your eyes.
  2. Make sure that you do not use or store Lithium-Ion batteries in very hot temperature environments. Make sure to avoid direct sunlight making contact with Lithium-Ion batteries, as this can cause the battery to overheat and leak.
  3. If you notice any sort of odor emitting from a Lithium-Ion battery, discontinue use immediately and discard it appropriately. If you notice the battery becoming very hot to the touch, discontinue use and discard the battery appropriately. If you notice any discoloration from the battery, discontinue use and discard the battery appropriately. In the battery appears to be warped, deformed, buckled, or otherwise misshapen, cease using it immediately and discard it appropriately.
  4. Do not use this battery in conjunction with other primary batteries, such as dry-cell batteries, that are of varying capacities, types, or brands.
  5. Avoid allowing the battery to be physically shocked in any severe fashion, such as throwing it or allowing it to drop onto the floor. In the event that this occurs, make sure to physically inspect the battery for any damage. If any is noticed, appropriately discard the battery and do not use it.
  6. Never puncture, stab, or otherwise penetrate any battery. Never attempt to open any battery. Doing so will expose the internal chemicals and is extremely dangerous and hazardous.
  7. Do not allow any battery to be submerged in water, or otherwise made wet. If your battery has been made wet, discontinue use and discard it appropriately.
  8. When charging Lithium-Ion batteries, do not remove the battery from the charger while the charger is plugged in. Rather, first unplug the charger, then remove the batteries.
  9. Make sure that your batteries do not come into contact with metallic objects, as this can be dangerous.
  10. If you will not be using your device for extended periods of time, make sure that you remove the battery from your device prior to storing it.
  11. Make sure that your batteries are stored in a moderate climate, such as standard room temperature.
  12. Make sure to read manufacturer charging instructions prior to charging any battery.
  13. Never connect wires or any metallic object to either the positive or negative pole of any battery, as this can cause a short and be extremely dangerous.