Test/review of Vapcell INR18650 2500mAh K25 (Red) 2020

HKJ

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[size=+3]Vapcell INR18650 2500mAh K25 (Red) 2020[/size]

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Official specifications:
  • Model: K25 INR18650 2500mah 20A
  • Size: 18.3*65.0mm
  • Nominal voltage: 3.60V
  • End-of-charge voltage: 4.20V
  • End-of-discharge Voltage: 2.5V
  • Typical Capacity: 2500mAh (0.2C discharge)
  • Min capacity: 2400mAh (0.2C discharge)
  • Weight: Max:46g
  • Internal resistance: Max:15m? ?AC 1kHz?
  • Standard Charge: 2000mA,CCCV 100mA cut-off
  • Quick Charge Current: 4000mA
  • Max Continuous Discharge Current: 20A
  • Max Discharge Current: 35A

Vapcell%20INR18650%202500mAh%20K25%20(Red)%202020-info.png


High current 18650 batteries with moderate capacity.

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Vapcell%20INR18650%202500mAh%20K25%20(Red)%202020-Capacity.png


The two cells match nicely and can deliver 15A continuous, at higher current I stop test early due to temperature.

Vapcell%20INR18650%202500mAh%20K25%20(Red)%202020-Temp-15.0.png


Vapcell%20INR18650%202500mAh%20K25%20(Red)%202020-Temp-20.0.png


Vapcell%20INR18650%202500mAh%20K25%20(Red)%202020-Temp-30.0.png


Vapcell%20INR18650%202500mAh%20K25%20(Red)%202020-CapacityTimeHours.png


Vapcell%20INR18650%202500mAh%20K25%20(Red)%202020-CapacityTime.png


Vapcell%20INR18650%202500mAh%20K25%20(Red)%202020-Energy.png


Vapcell%20INR18650%202500mAh%20K25%20(Red)%202020-PowerLoadTime.png


Vapcell%20INR18650%202500mAh%20K25%20(Red)%202020-TripCurrent.png


Vapcell%20INR18650%202500mAh%20K25%20(Red)%202020-Charge.png


Discharge-Vapcell%20INR18650%202500mAh%20K25%20%28Red%29%202020-pulse-1.0%2010%2010-IR.png




[size=+3]Conclusion[/size]

These batteries is not super high current, but can deliver a good current. The capacity is on pair with many high current 18650 cells and not that high.



[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
 
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