Efest IMR 18650 2800mAh 35A Flat Top Battery - Wholesale Discount


  • $ 6.86

Efest IMR 18650 2800mAh 35A Flat Top Battery - Wholesale Discount is not currently available. Click here to be notified by email when they're back in stock.

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Stock Note:  Discontinued, the new 2900 mAh Efest has replaced it.

NEW 2015 Efest Purple Series Batteries

These batteries are a good battery that gives good battery life at 2800 mAh while providing pretty good discharge current.  Efest rates it at 35A continuous and 80A pulse (although they are revising the pulse rating, for now I would stick with the 35A rating).

  • Size: 18650 (18.5mm diameter x 65.2mm long)
  • Type: IMR/Li-Mn (Rechargeable)
  • Rated Capacity: 2800mAh 
  • Max Continuous Discharge Current:  35A
  • Max Pulse Discharge Current:  80A (note Efest is revising this)
  • Voltage:  3.7V
  • Protected: No
  • Style: Flat Top
  • Weight:  55g 
  • Color: Dark Purple
  • Rated storage temperatures:
    • 1 year: -20°C—25°C
    • 3 months: -20°C—45°C
    • 1 month: -20°C—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.  Anyway 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.


Warranty:  Satisfaction guaranteed, if your battery is DOA or you think there's a problem with it just let us know within 14 days of your order and we'll make it right.

Battery safety is very important.  Mistreated batteries can get extremely hot and/or vent which could cause injury.  Always follow the following rules to make sure this doesn't happen.  We are not liable for mistreated batteries.


  • Never completely discharge batteries (below 2.5V under load or 3V unloaded).
  • Charge fully (to 4.2V) before first use.
  • Never use a lot of force on the battery to install
  • 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.  
  • Be mindful of the current limits in the specification and never exceed them.
  • Never keep a spare battery loose in a pocket, purse, etc.  Always use protective cases for loose batteries.  If it shorts against a piece of metal it can be very dangerous.
  • Never charge battery 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 battery then do it in a case or individual box in cool and dry place at approximately 3.6V - 3.7V.
  • Never try to charge or discharge li-ion batteries with battery chargers that are not made for Li-ion batteries. 


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