Panasonic NCR18500A 2040mAh (Green)



Official specifications:

• Rated capacity: 1900mAh at 20°C
• Minimum capacity: 1940mAh at 25°C
• Typical capacity: 2040mAh at 25°C
• Nominal voltage: 3.6V
• Charging: CC-CV to 4.20V
• Standard charge current: 0.7C
• Weight: 33.5g
• 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