Efest IMR18500 1000mAh (Purple) 2017
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Official specifications:
- Capacity: 1000mAh
- Voltage: 3.7V
- Continuous discharge current: 10A
- Pulse discharge current: 15A
- Diameter: 18.50 (+/-0.2)mm
- Length: 50.20 (+/-0.2)mm
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A high current 18500 cell.
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This is very nice discharge curves with good tracking and the cell can deliver 15A.
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I did mostly run the cell empty during this test, it can deliver a lot of current, but not for long.
Conclusion
Good high current performance, capacity as expected in a high current cell.
This is a good 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
Compare to 18650 and other batteries