Efest IMR 26650 50A 4200mAh High Drain Flat Top Rechargeable Battery

Efest IMR 26650 4200mAh 50A High Drain Flat Top Rechargeable Battery


  • $8.99
  • Save $2
  • 4 reviews


  • Style: Flat Top
  • Chemistry: IMR
  • Nominal capacity: 4200mAh (Max)
  • Max Continuous Rated Discharge: 35A
  • Max Pulse Rated Discharge: 50A
  • Dimensions: 65.40 mm (Max) x 26.70 mm (Max)
  • Weight: 95.40g (Max)
  • Discharge Cut-off Voltage: 2.5V
  • Nominal voltage: 3.6~3.7V
  • Full Charge Voltage: 4.2V ± 0.05V
  • Protected: No, Unprotected
  • Standard Charge: Constant Current 2000mA, Constant Voltage 4.20V
  • Operational Charging Temperature Range: 00 to 45 degrees Celsius
  • Operational Discharging Temperature Range: -20 to 75 degrees Celsius 

Note: We have tested random samples from each and every shipment to make sure all the batteries are fresh and genuine. You won't get this extra service from most suppliers.

Please read before you place your order:

Dear Customers:
You must have an appropriate understanding of the potential dangers of Li-ion battery before you place your order and usage. As misusing or mishandling the battery may cause a fire or explosion which may result in personal injury or property damage. This battery is manufactured and sold for the intended use of system integrations with proper protection circuitry or battery packs with a BMS (battery management system) or PCB (circuit board/module). This battery is neither designed nor intended to be used for other purposes. Usage of this battery is at your own risk!

Friendly reminders:

  • Don't use with device that does not have BMS or PCB protection.

  • Don't store loose in your pocket, backpack, purse, or etc. Always use a case or box for storage or to carry with you.

  • When not in use, always store your battery in a case or box in which battery were delivered with.

  • Misusing or mishandling Li-ion battery can cause a serious risk of personal injury or property damage.

  • If misused or mishandled, the battery may explode, burn, or case a fire.

  • Usage of battery is at your own risk!

  • Only use with proper protection circuitry.

  • Don't short circuit intentionally or unintentionally.

  • Stay away from metal or conductive objects to prevent short circuiting.

  • Don't use the battery if battery's wrapper or terminal insulator is damaged or torn.

  • Don't use if battery is showing any visible damage.

  • Don't over-charged or charged battery above the maximum voltage rating.

  • Don't over-discharged or exceed battery above the continuous discharge rating.

  • Don't modify, disassemble, puncture, cut, crush, or incinerate the battery.

  • Don't expose the battery to liquids or high temperatures.

  • Don't use force to install the battery in any way.

  • Only use the battery within manufacturer’s specification.

  • Store the battery at a safe place where the pet/child can't reach.

  • Always charge the battery in or on a fire-proof surface and never leave battery charging unattended.

  • Only use a proper smart charger to charge the battery.

  • Please fully charged the battery before first use. The charging time may vary, depends on the charger you have (may need from 4 to 12 hours). If your charger has a capacity indicator, it is normal that the first bar or first 20% to 25% would take the longest time to be charged.

  • Always use the batteries that are same brand, same model, and same condition. Don't mix and match with other batteries.

  • Immediately stop using the battery if any abnormal appearance occurs.

  • It is your responsibility to make sure that your charger or device is functional.

  • If exposed to battery electrolyte, flush with water immediately and/or immediately contact a physician or emergency services.

  • Don't throw away in trash; please properly recycle or dispose the battery.


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      Customer Reviews
      5.0 Based on 4 Reviews
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      Filter Reviews:
      Robert H.
      United States United States

      My experience has been just excellent! The PCs. Arrived a week before I expected. They have been in constant contact with me. I would have to give them all stars for Customer being up to date on shipment, and they just really care for their Customers. Prices are really great. I highly recommend them.

      Scott M.
      United States United States
      Gusto till it gives out.

      Great experience! 2 of them Powered my 5w green laser for hours. No slope off at the end. Either it worked or it didn't. That's a good thing, for you newbies

      Renny P.
      United States United States

      Took a lil while for it to come in but it’s the right size and held a charge all day.

      Tammy H.
      United States United States
      Efest IMR 26650 4200mAh 50A High Drain Flat Top Battery

      First off, to give a better idea for potential readers, I am a MTL vaper (mouth to lung) so the coils I use are low wattage at 10-30w. Most vapers are DTL (direct to lung) and those coils use more power because of their size a wattage range. Anyway, After about 60hrs of use, my battery level is still over 70%. I’m vaping on a 100w mod with a coil set at 11w. The fire setting is set to hard. Now, i've heard negative things about Efest batteries and all the fakes out there but I believe that M&A does their research/testing. Personally, out of all the mods I switch between, this battery has excellent life and amp power and competes very well with the dual 18650’s. Well checked, packed and shipped fast. Kudo’s to M&A, I will be buying more in the future.

      M&A BD Electronics Efest IMR 26650 4200mAh 50A High Drain Flat Top Rechargeable Battery ReviewM&A BD Electronics Efest IMR 26650 4200mAh 50A High Drain Flat Top Rechargeable Battery Review