Test/review of Vapcell NCR20700 3200mAh (Gold)

[HKJ]

Vapcell NCR20700 3200mAh (Gold)





Official specifications:

• Model: NCR20700

• Size: 20.0*70.2mm

• Nominal voltage: 3.6V

• End-of-charge voltage: 4.20V

• End-of-discharge Voltage: 2.50V

• Typical Capacity: 3200mAh (0.2C discharge)

• Min capacity: 3100mAh (0.2C discharge)

• Weight: Max:60g

• Internal resistance: Max:10mOhm

• Standard Charge: 2000mA,CCCV 50mA cut-off

• Charging Time: 3hours(standard charge)

• Quick Charge Current: 4000mA

• Max Continuous Discharge Current: 30000mA

• Operating Temperature: Charging: 0°C ~ 45°C, Discharging: –20°C~70°C

• Storage: Temperature –5°C~35°C, Humidity <75%RH

• Standard environmental condition: Temperature: 23±5°C

• Humidity: 45-75%RH

A high current cell of the new 20700 size.











The discharge curve is very good, it tracks nearly perfectly and the capacity do not drop much with loads up to 30A



A 30°C temperature raise at 15A, this is easy for the cell.



At 30A it gets fairly hot, but not too hot. 30A looks like a good rating for this cell.















Conclusion

This battery do not have more capacity than 18650, but it handles high current better that the best 18650.

I will call this a very good cell.



Notes and links

The batteries was supplied by Vapcell 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