Efest IMR 26650 4200mAh 50A Li-Mn Flat Top Battery - Wholesale Discount


SKU: efest26650_4200f_qty1
$ 8.99
7 reviews


We no longer carry this battery.

We suggest you consider IJOY 26650 Battery 40A 4200mAh - Genuine - Wholesale Discount as an alternative.

These are the new version of the Efest IMR 4200 mAh battery.  They will really pump out the high current at 35A continuous, 50A pulse, and 4200mAh total capacity.  These efest 26650 batteries have been awesome in our testing, being able to handle some serious current while going at it for a long time.

  • Released in 2016 (2016 Efest Batteries)
  • Size: 26650 (Approximately 26.22mm diameter x 65.11mm long)
    • Note these seem to be ~67mm long despite the Efest spec, make sure your device has the space for them
  • Type: Li-Mn IMR (Rechargeable)
  • Rated Capacity: 4200mAh 
  • Max Discharge Current (Continuous): 35A
  • Max Discharge Current (Pulse):  50A
  • Voltage:  3.7V
  • Protected: No
  • Style: Flat Top
  • Weight:  100g 
  • Initial Impedance:  13Ω (plus or minus 2Ω)
  • Color: Purple
  • Rated storage temperature:  20-60 C

As always, you can trust Liion Wholesale to have tested random samples from each and every batch to make sure all the batteries are fresh and genuine.  We have an agreement with Efest themselves and buy only manufacturer direct for these so the chances of issues are small, but we test anyway.  You won't get that with most suppliers.

Batteries are sold individually.

If your battery is damaged or defective on arrival (will not take its first charge, or has issues with its first cycle), please let us know within 14 days of receiving your order and we'll make it right. Please read our complete store policy on defective products here for more information and to see if you're eligible.

Manufacturer ratings: Please see more information regarding manufacturer ratings here.

Battery Warning

Warning: Lithium ion batteries may explode or burn due to improper use. Using these batteries for purposes not intended by the manufacturer, including outside a battery pack and/or without a BMS, may cause severe injury and damage. We are not responsible for any injuries caused by lithium ion batteries - use at your own risk.

All rechargeable batteries have inherent risks under any circumstance. Use caution with working with li-ion batteries (lithium-ion), LiPo (lithium ion polymer), and any rechargeable cells (together "rechargeable batteries"), as they have dangerous charging characteristics and are known to explode or burn if mishandled. A purchaser and user of rechargeable batteries should educate themselves on rechargeable batteries, especially as to charging, discharging, assembly, and storage. Learn more about proper storage and care for rechargeable batteries here. We are not responsible for any damage caused by the misuse or mishandling of rechargeable batteries.

Here are a few tips:

  • Never completely discharge batteries (below 2.5V under load or 3V unloaded)
  • Charge fully (to 4.2V) before first use
  • Never charge batteries to 4.3V or above
  • Do not charge unattended
  • Do not store your li-ion batteries fully charged for an extended period of time (weeks or more)
  • If you must store your battery, only store in a case or individual box in a cool and dry place at approximately 3.6-3.7V
  • Use only high quality battery chargers
  • Do not expose to heat
  • Do not connect the positive contact to the negative contact without an appropriate load
  • Never exceed the battery's specifications
  • Never try to charge or discharge li-ion batteries with battery chargers that are not made for li-ion batteries
  • Always charge these batteries on and within fireproof material
  • Never leave rechargeable batteries in a recharging station unattended
  • Do not use any rechargeable battery or charger if any visible damage is present, or if known mishandling, accidental or otherwise, has occurred
  • Always store and transport rechargeable cells in a safe, non-conductive container (never keep a spare battery loose in a pocket, purse, etc. and always use protective cases)
  • Properly dispose of all battery cells and chargers in accordance with local laws and mandates (if you're unsure, contact your local municipality)
  • If a rechargeable battery overheats, hisses, or bulges, immediately quarantine the battery from any combustible materials - ideally, take the battery outside
  • If a rechargeable battery catches fire, the FAA recommends pouring water or soda on the battery and surrounding areas - ideally, use a foam extinguisher to quell the fire

By purchasing this product, you agree that seller makes no warranties whatsoever with respect to the goods sold on this website, including any (a) warranty of merchantability or (b) warranty of fitness for a particular purpose, whether express or implied by law, course of dealing, course of performance, usage of trade or otherwise. Buyer acknolwledges that it has not relied upon any representation or warranty made by seller, or any other person on the seller's behalf. If purchasing for resale, buyer assumes all responsibility and agrees to forward all notifications and warnings to the purchaser.

Customer Reviews
4.6 Based on 7 Reviews
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Filter Reviews:
Gary P.
United States
  • What device/application do you use this with? Geekvape Aegis
Just okay.

Product is being used on a Geekvape Aegis mod and I've noticed that after dipping below 50% the vape quality diminishes pretty dramatically leading me to believe that the battery lowers output to preserve battery life. On the other hand, I also have a Golisi 26650 and it holds up better to around 25% battery life which then vape quality diminishes. Wish Liion carried Golisi as I would of bought them instead.

Frank M.
Atlanta Ga.
  • What device/application do you use this with? AEGIS by Geekvape
Finally an all day battery!

These things ROCK! Last all day. Superb service on the order as well as the follow up.

Cynthia R.
United States
  • What device/application do you use this with? Vape device
Works great

Great product, reasonably priced

Derek O.
United States
  • What device/application do you use this with? Geek vapor aegis vamping mod
Authentic item fast shipping

Great batteries great company

Tulsa, OK
  • What device/application do you use this with? Montana(mech) w/ Clieto using .2 Ohm atomizer
Excellent Turn-around

I am the person that is very reluctant to award the fifth star, unless a business, service, or product truly exceeds expectations. Lion Wholesale earned their fifth star. I ordered four of these batteries on a Thursday, and had them at my home(with basic shipping) by Saturday. They actually fulfilled my order and shipped it within a few hours. Batteries were in original packaging with the standard manufacturer's storage charge. They even threw in a battery case. They will definitely get recommendations from me.