Test/review of Vapcell INR21700 4200mAh T42 (Red) 2021

HKJ

HKJ

Flashaholic
Joined
Mar 26, 2008
Messages
9,714
Location
Copenhagen, Denmark
[size=+3]Vapcell INR21700 4200mAh T42 (Red) 2021[/size]

DSC 4782


Official specifications:
  • Model: T42
  • Size: 21.5*70.1mm
  • Typical Capacity: 4200mAh (0.2C discharge)
  • Min capacity: 4000mAh (0.2C discharge)
  • Nominal voltage: 3.60V
  • Max Continuous Discharge Current: 35A
  • Max Discharge Current: 50A with 80°C cut
  • End-of-charge voltage: 4.20V
  • End-of-discharge Voltage: 2.5V
  • Weight: 70g ( Appr)
  • Internal resistance: 8mOhm AC 1kHz
  • Standard Charge: 4000mA,CCCV 100mA cut-off
  • Quick Charge Current: 8000mA

Ell20INR21700204200mAh20T4220Red202021 info


This is a high current 21700 cell.

DSC 4780
DSC 4781


DSC 4783
DSC 4784


DSC 4785

DSC 4786

DSC 4787


20INR21700204200mAh20T4220Red202021 Capacity


The two cells matches nicely and capacity only drops slightly even with 30A load, as usual the temperature goes up at high load.

0INR21700204200mAh20T4220Red202021 Temp 150


0INR21700204200mAh20T4220Red202021 Temp 200


0INR21700204200mAh20T4220Red202021 Temp 300


0204200mAh20T4220Red202021 CapacityTimeHours


R21700204200mAh20T4220Red202021 CapacityTime


L20INR21700204200mAh20T4220Red202021 Energy


21700204200mAh20T4220Red202021 PowerLoadTime


NR21700204200mAh20T4220Red202021 TripCurrent


L20INR21700204200mAh20T4220Red202021 Charge


Ah20T422028Red29202021 pulse 1020102010 IR




[size=+3]Conclusion[/size]

This is a good high current 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
Graphical comparison to 18650 and other batteries
Table with all tested LiIon batteries
 
Top