Test/Review of Vapcell IMR18490 1400mAh (Yellow)

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Test/Review of Vapcell IMR18490 1400mAh (Yellow)
Vapcell IMR18490 1400mAh (Yellow)

DSC_0611

Official specifications:
  • Type: li-ion battery cell (flat top)
  • Size: 18490
  • Nominal capacity: 1400mah @ 0.2C Discharge
  • Min. capacity: 1300mah @ 0.2C Discharge
  • Nominal voltage: 3.7 V
  • Standard Charge: 1A, 4.20 ± 0.05 V, CCCV 50mA cut-off
  • Continuous maximum charge current: 2A
  • Discharge cut-off voltage: 2.5v
  • Continuous maximum discharge current: 10A
  • Max Discharging Current: 15A
  • Weight: 35g max.
  • Operating temperature: Charging: 0°C~40°C, Discharging:-20°C~55°C
  • Storage temperature: -20°C~45°C

Vapcell%20IMR18490%201400mAh%20(Yellow)-info

This is a short high current cell according to the specifications.

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DSC_0612 DSC_0613

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Vapcell%20IMR18490%201400mAh%20(Yellow)-Capacity

The tracking between the two cells is acceptable, even at high current, but not perfect. The pulse rating of 15A is not possible. It looks like the cell can sustain between 5A and 7A.

Vapcell%20IMR18490%201400mAh%20(Yellow)-CapacityTimeHours

Vapcell%20IMR18490%201400mAh%20(Yellow)-CapacityTime

Vapcell%20IMR18490%201400mAh%20(Yellow)-Energy

Vapcell%20IMR18490%201400mAh%20(Yellow)-PowerLoadTime

Vapcell%20IMR18490%201400mAh%20(Yellow)-TripCurrent

Vapcell%20IMR18490%201400mAh%20(Yellow)-Charge



Conclusion

This cell has a bit more capacity than many IMR cells in this size, but the high current performance is not as good.
I.e. this cell trades some high current performance for a bit more capacity.



Notes and links

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

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/