Test/review of Vapcell NCR20700 3200mAh (Gold)

[size=+3]Vapcell NCR20700 3200mAh (Gold)[/size]


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.















[size=+3]Conclusion[/size]

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.



[size=+3]Notes and links[/size]

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

Looks like the cell is a Sanyo NCR20700A

SubLGT said:

Looks like the cell is a Sanyo NCR20700A

Click to expand...

I think your right. The Voltage sag[curves] are basically identical at numerous settings.

Now to find a light that will accept a Vapcell/Sanyo 20700. Or even better yet, a Samsung 21700. Lengthwise, any flashlights that accept protected batteries should be OK. Diameter wise will be the challenge.