Efest - Purple - IMR 18500 1000mah nipple top

Efest Power

The Efest purple series is a great battery for use with mechanical mods. It is a 18500 size with a 15A 1000mAh capacity battery in a flat top version.



  •     Manufacturer: Efest
  •     Size: 18500
  •     Model: Efest 18500 P15A
  •     Type: Li-Mn (High Drain)
  •     Rated Capacity: 1000mAh
  •     Nominal Voltage: 3.7V
  •     Peak Voltage: 4.2V
  •     Cut-off Voltage: 2.5V
  •     Dimensions: 18.4mmX49.8mm
  •     Rechargeable: Yes
  •     Max Amp Output: 15A
  •     Chemistry: Lithium manganese Dioxide (Li-Mn02)
  •     Style: Flat Top
  •     Color: Purple
  •     Rated Capacity: 1000mAh

NOTE:These IMR cells have much lower internal resistance than regular LiIon 3.7V cells and they may end up with a higher ending voltage when charged in certain chargers ( especially older versions of the WF-139 charger ). Please check the voltage of your 18350 IMR battery right out of the charger to see if they are above 4.20V when fully charged with your charger. You can do this with a Multimeter Overcharging above 4.25V may shorten life/cycles. Above 4.50V may even damage them. DO NOT use the charger if it is overcharging IMR cells.

Other Caution Notes:
- Do not over-discharge/overcharge
- Recharge empty batteries ( resting voltage ~3.6V ) as soon as possible. Leaving Li-Ion batteries in discharged state will incur irreversible damage ( capacity / cycle loss )
- Do not short circuit ( will release tremendous current )
- Do not dispose of in fire.

Synergy Vapor Labs (synergyvapor.com) will not be held responsible or liable for any injury, damage, or defect, permanent or temporary that may be caused by the improper use of a battery. Please have a basic understanding of the batteries you are using and how to care for them properly.


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