Test/review of Ampsplus INR18650 2500mAh (Black)

Ampsplus INR18650 2500mAh (Black)







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




This is a high current 18650 cell with moderate capacity.











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





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



30A discharge is not really for continuous discharge.















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

Thanks for the review HKJ. :+1:

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??

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.

@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

Great Job , Thank you HKJ :slight_smile: