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

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

Efest IMR18350 700mAh (Purple) 2017
DSC_0247
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
This is a high current 18350 cell.
DSC_0246
DSC_0248 DSC_0249
DSC_0250
DSC_0251
DSC_0252
Efest%20IMR18350%20700mAh%20(Purple)%202017-Capacity
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
Efest%20IMR18350%20700mAh%20(Purple)%202017-Temp-10.0
Efest%20IMR18350%20700mAh%20(Purple)%202017-Temp-15.0
Efest%20IMR18350%20700mAh%20(Purple)%202017-CapacityTimeHours
Efest%20IMR18350%20700mAh%20(Purple)%202017-CapacityTime
Efest%20IMR18350%20700mAh%20(Purple)%202017-Energy
Efest%20IMR18350%20700mAh%20(Purple)%202017-PowerLoadTime
Efest%20IMR18350%20700mAh%20(Purple)%202017-TripCurrent
Efest%20IMR18350%20700mAh%20(Purple)%202017-Charge
Conclusion
The cell has good high current capability, the capacity is fine, but it is not a high capacity cell.
Notes and links
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

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

saypat
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what does it mean that it is not a hight capacity cell? Does that refer to the700 mAh? That new cell, the Aspire, is rated at 1100 mAh.

thank you

HKJ
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saypat wrote:
what does it mean that it is not a hight capacity cell? Does that refer to the700 mAh? That new cell, the Aspire, is rated at 1100 mAh.

thank you

You can find 18350 cell that can deliver less current, but more capacity. Usual there is some trade off between high current and high capacity. The Aspire is an exception to that.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/