Panasonic NCR18500A 2040mAh (Green)
Official specifications:
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Rated capacity: 1900mAh at 20°C
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Minimum capacity: 1940mAh at 25°C
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Typical capacity: 2040mAh at 25°C
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Nominal voltage: 3.6V
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Charging: CC-CV to 4.20V
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Standard charge current: 0.7C
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Weight: 33.5g
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Temperature: Charge: 10°C ~ 45°C, Discharge: –20°C ~ 60°C, Storage: –20°C ~ 50°C
18500 batteries from Panasonic.
Discharge curves has very good tracking.
Note: First cell was only tested up to 5A
Conclusion
This looks like a good high capacity 18500 battery. It can deliver some current, but it is not a high current batterg
Notes and links
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