Test/review of Efest IMR18350 700mAh (Purple) 2017

HKJ

Flashaholic
Joined
Mar 26, 2008
Messages
9,715
Location
Copenhagen, Denmark
[size=+3]Efest IMR18350 700mAh (Purple) 2017[/size]

DSC_0247.jpg


Official specifications:
  • Size: 18350 (18.3mm diameter x 34.63mm long)
  • Type: Li-Mn (Rechargeable)
  • Rated Capacity: 700mah
  • Max Discharge Current: 10.5A
  • Voltage: 3.7V
  • Protected: No
  • Style: Flat Top
  • Weight: 28g
  • Initial Impedance: 15mOhm

Efest%20IMR18350%20700mAh%20(Purple)%202017-info.png


This is a high current 18350 cell.

DSC_0246.jpg


DSC_0248.jpg
DSC_0249.jpg


DSC_0250.jpg

DSC_0251.jpg

DSC_0252.jpg


Efest%20IMR18350%20700mAh%20(Purple)%202017-Capacity.png


The discharge curves looks good with nice tracking up to 7A. At 10A one of the cells has problems and at 15A both cell are serious over loaded.

Efest%20IMR18350%20700mAh%20(Purple)%202017-Temp-7.0.png


Efest%20IMR18350%20700mAh%20(Purple)%202017-Temp-10.0.png


Efest%20IMR18350%20700mAh%20(Purple)%202017-Temp-15.0.png


Efest%20IMR18350%20700mAh%20(Purple)%202017-CapacityTimeHours.png


Efest%20IMR18350%20700mAh%20(Purple)%202017-CapacityTime.png


Efest%20IMR18350%20700mAh%20(Purple)%202017-Energy.png


Efest%20IMR18350%20700mAh%20(Purple)%202017-PowerLoadTime.png


Efest%20IMR18350%20700mAh%20(Purple)%202017-TripCurrent.png


Efest%20IMR18350%20700mAh%20(Purple)%202017-Charge.png




[size=+3]Conclusion[/size]

The cell has good high current capability, the capacity is fine, but it is not a high capacity cell.



[size=+3]Notes and links[/size]

The batteries was supplied by Efest for review.

How is the test done and how to read the charts
How is a protected LiIon battery constructed
More about button top and flat top batteries
Comparison to other LiIon batteries
 
Top