HKJ
Flashaholic
[size=+3]Vapcell INR21700 3750mAh (Blue) 2018[/size]
Official specifications:
The discharge curves for the two cells matches nicely and the cell is fairly constant in capacity at any current.
[size=+3]Conclusion[/size]
These cell looks to be good quality and can deliver up to the rated 30A
[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
Official specifications:
- Model: INR20700
- Size: 21.6*70.5mm
- Nominal voltage: 3.6V
- End-of-charge voltage: 4.20V
- End-of-discharge Voltage: 2.50V
- Typical Capacity: 3750mAh (0.2C discharge)
- Min capacity: 2650Ah (0.2C discharge)
- Weight: Max:70g
- Internal resistance: Max:10mOhm
- Standard Charge: 1500mA,CCCV 100mA cut-off
- Charging Time: 3.5hours(standard charge)
- Quick Charge Current: 3000mA
- Max Continuous Discharge Current: 30000mA
- Operating Temperature: Charging: 0°C ~ 45°C, Discharging: -20°C~75°C
- Storage: Temperature -5°C~35°C, Humidity <75%RH
- Standard environmental condition: Temperature: 23±5°C, Humidity: 45-75%RH
The discharge curves for the two cells matches nicely and the cell is fairly constant in capacity at any current.
[size=+3]Conclusion[/size]
These cell looks to be good quality and can deliver up to the rated 30A
[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
