Efest IMR18350 700mAh (Purple) 2017
![DSC_0247](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR18350%20700mAh%20(Purple)%202017/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](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR18350%20700mAh%20(Purple)%202017/Efest%20IMR18350%20700mAh%20(Purple)%202017-info.png)
This is a high current 18350 cell.
![DSC_0246](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR18350%20700mAh%20(Purple)%202017/DSC_0246.jpg)
![DSC_0249](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR18350%20700mAh%20(Purple)%202017/DSC_0249.jpg)
![DSC_0250](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR18350%20700mAh%20(Purple)%202017/DSC_0250.jpg)
![DSC_0251](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR18350%20700mAh%20(Purple)%202017/DSC_0251.jpg)
![DSC_0252](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR18350%20700mAh%20(Purple)%202017/DSC_0252.jpg)
![Efest%20IMR18350%20700mAh%20(Purple)%202017-Capacity](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR18350%20700mAh%20(Purple)%202017/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](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR18350%20700mAh%20(Purple)%202017/Efest%20IMR18350%20700mAh%20(Purple)%202017-Temp-7.0.png)
![Efest%20IMR18350%20700mAh%20(Purple)%202017-Temp-10.0](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR18350%20700mAh%20(Purple)%202017/Efest%20IMR18350%20700mAh%20(Purple)%202017-Temp-10.0.png)
![Efest%20IMR18350%20700mAh%20(Purple)%202017-Temp-15.0](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR18350%20700mAh%20(Purple)%202017/Efest%20IMR18350%20700mAh%20(Purple)%202017-Temp-15.0.png)
![Efest%20IMR18350%20700mAh%20(Purple)%202017-CapacityTimeHours](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR18350%20700mAh%20(Purple)%202017/Efest%20IMR18350%20700mAh%20(Purple)%202017-CapacityTimeHours.png)
![Efest%20IMR18350%20700mAh%20(Purple)%202017-CapacityTime](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR18350%20700mAh%20(Purple)%202017/Efest%20IMR18350%20700mAh%20(Purple)%202017-CapacityTime.png)
![Efest%20IMR18350%20700mAh%20(Purple)%202017-Energy](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR18350%20700mAh%20(Purple)%202017/Efest%20IMR18350%20700mAh%20(Purple)%202017-Energy.png)
![Efest%20IMR18350%20700mAh%20(Purple)%202017-PowerLoadTime](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR18350%20700mAh%20(Purple)%202017/Efest%20IMR18350%20700mAh%20(Purple)%202017-PowerLoadTime.png)
![Efest%20IMR18350%20700mAh%20(Purple)%202017-TripCurrent](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR18350%20700mAh%20(Purple)%202017/Efest%20IMR18350%20700mAh%20(Purple)%202017-TripCurrent.png)
![Efest%20IMR18350%20700mAh%20(Purple)%202017-Charge](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR18350%20700mAh%20(Purple)%202017/Efest%20IMR18350%20700mAh%20(Purple)%202017-Charge.png)
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