Test/review of Ampsplus INR18650 2500mAh (Black)

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HKJ
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Test/review of Ampsplus INR18650 2500mAh (Black)

Ampsplus INR18650 2500mAh (Black)

DSC_1583

Official specifications:


  • Size: 18.35mm x 64.95mm
  • Nominal Voltage: 3.65V
  • Nominal Capacity: 2500mAh
  • Minimum Capacity: 2450mAh
  • Charging Metod: CC/CV 4.20CV ±0.05V
  • Discharge Voltage: 2.50V (Average Cut Off)
  • Charging Current CC: 1250mA , 135min
  • Rapid Charging Current: 4000mA , 55min
  • Continuous Discharge Current: 20A
  • Internal Resistance: 0.04 Ohm
  • Battery rate: 8C
  • Weight: 48 gr.max
  • Colour: Black , Silver
  • Version: Flat Top
  • Protection: No

Ampsplus%20INR18650%202500mAh%20(Black)-info

This is a high current 18650 cell with moderate capacity.

DSC_1581

DSC_1584DSC_1585

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DSC_1587
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Ampsplus%20INR18650%202500mAh%20(Black)-Capacity

The discharge curves has nice tracking and nearly constant capacity up to 20A.

Ampsplus%20INR18650%202500mAh%20(Black)-Temp-15.0

Ampsplus%20INR18650%202500mAh%20(Black)-Temp-20.0

The battery warms up during a 20A discharge, but not too much.

Ampsplus%20INR18650%202500mAh%20(Black)-Temp-30.0

30A discharge is not really for continuous discharge.

Ampsplus%20INR18650%202500mAh%20(Black)-CapacityTimeHours

Ampsplus%20INR18650%202500mAh%20(Black)-CapacityTime

Ampsplus%20INR18650%202500mAh%20(Black)-Energy

Ampsplus%20INR18650%202500mAh%20(Black)-PowerLoadTime

Ampsplus%20INR18650%202500mAh%20(Black)-TripCurrent

Ampsplus%20INR18650%202500mAh%20(Black)-Charge



Conclusion

This is a very good high current cell.



Notes and links

The batteries was supplied by ecoluxshopdirect.co.uk 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

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

MRsDNF
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Thanks for the review HKJ. Thumbs Up

My current and or voltage measurements are only relevent to anything that I measure.

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JaredM
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Whoa! So this is a 25R? Did Samsung update this cell? It significantly outperforms previous tests and even the VTC5A by a good margin.

EDIT: I don’t know what happened but I see that now. I somehow was comparing the 20A of the 25R and the 30A trace of the VTC5A. Maybe there was an error loading that curve and I didn’t notice it the first time. I was just comparing it to another cell that was inferior to the VTC5A a minute ago and was like wait.. what the??

Agro
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Just looking at VTC5A and this cell in the HKJ comparator. No, it’s not better, it’s significantly worse except for slightly higher capacity.

JaredM
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@Agro

I realized that I had made a mistake and updated the post. Thanks for pointing that out anyway. I’d hate to have wasted time hunting down something that wasn’t there

Norb
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Great Job , Thank you HKJ Smile