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Efest 30AMP IMR18650- 1600mah Flat top

Sold individually

AvailabilityOut of stock
Special Price $6.99 Regular Price $9.99
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Sold individually unless stated otherwise. We cannot ship any batteries outside of the US. If they are ordered to an address outside the US they will not be shipped.


weight: 50g Length: 64.91 mm Diamter: 18.34 mm
Info top: flat top Bottom: non-procted    
Capacity Typical Capacity: 1600mAh Min capacity: 1600mAh
Max discharge current 30A (20C) quick charge current 1600mA (1C)

Quick discharge current

1600mA (10C) cycle life: 500 times
Charge cut-off voltage 4.2V ± 0.5V  Charge cut-off current 0.01C 5A(at CV mode)
Initial Impedance Max: 18mΩ discharge cut-off voltage 3.0V
Temperature: dishcarge temperature range:-10°C—60°C
shcarge temperature range: 0°C—40°C
storage: 1 year:-20°C—25°C
       3 months:-20°C—45°C
         1 month:-20°C—60°C


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 18650 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.
We do not recommend unprotected batteries in devices that they're not recommended to be used in, use at your own risk. If used in our devices using our Hot Spring, if there is a short the spring will collapse. Do not Use adapters with these batteries.

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