Test/review of Nitecore IMR18490 1100mAh (Black-Yellow)

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HKJ
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Test/review of Nitecore IMR18490 1100mAh (Black-Yellow)

Nitecore IMR18490 1100mAh (Black-Yellow)

DSC_8282

Official specifications:


  • Capacity: 1100mAh
  • Minimum capacity: 1070mAh
  • Nominal voltage: 3,6V – 3,7V
  • Charge voltage: 4,2V ± 0,05
  • Discharge cut-off: 2,75V
  • Pluspol: ButonTop
  • Max. continuous discharge current: 11A (10C)
  • Chemistry: IMR (LiMg)
  • Protection circuit: None
  • Charge algorithm: CC-CV
  • Diameter: 18,15mm ± 0,05
  • Height: 49,05mm ± 0,12
  • Weight: 32g±1

Nitecore%20IMR18490%201100mAh%20(Black-Yellow)-info

A fairly high current 18490 (Basically same as 18500) cell from Nitecore.

DSC_8271 DSC_8273

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DSC_8283DSC_8284

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Nitecore%20IMR18490%201100mAh%20(Black-Yellow)-Capacity

The two cells have different capacity and do not handle high current the same way. It looks like they can handle 10A
I got a fairly high internal resistance, because I measure it at high load.

Nitecore%20IMR18490%201100mAh%20(Black-Yellow)-Temp-10.0

Nitecore%20IMR18490%201100mAh%20(Black-Yellow)-Temp-15.0

Nitecore%20IMR18490%201100mAh%20(Black-Yellow)-CapacityTimeHours

Nitecore%20IMR18490%201100mAh%20(Black-Yellow)-CapacityTime

Nitecore%20IMR18490%201100mAh%20(Black-Yellow)-Energy

Nitecore%20IMR18490%201100mAh%20(Black-Yellow)-PowerLoadTime

Nitecore%20IMR18490%201100mAh%20(Black-Yellow)-TripCurrent

Nitecore%20IMR18490%201100mAh%20(Black-Yellow)-Charge



Conclusion

The performance is fairly average for 18490/18500 high current cells, but the bad matching means they cannot be used in series.



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): http://lygte-info.dk/

hIKARInoob
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Joined: 08/28/2016 - 08:15
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Two different capacities… From Nitecore… You pay premium price… Fail! Facepalm