Test/review of Keeppower IMR18650 NH1835 3500mAh (Black) 2016

HKJ

Flashaholic
Joined
Mar 26, 2008
Messages
9,715
Location
Copenhagen, Denmark
[size=+3]Keeppower IMR18650 NH1835 3500mAh (Black) 2016[/size]

DSC_7310.jpg


Official specifications:
  • Nominal capacity: 3500mAh
  • Minimum capacity: 3400mAh
  • Nominal voltage: 3.70V
  • Charge voltage: 4.20V 0/-0.05V
  • Standard discharge cut-off: 2.50V
  • Standard charge current: 1000mA
  • Charge current cut-off: 50mA
  • Max. Constant discharge current: 10A
  • Max. Pulse discharge current: 20A

Keeppower%20IMR18650%20NH1835%203500mAh%20(Black)%202016-info.png


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DSC_7314.jpg


Keeppower%20IMR18650%20NH1835%203500mAh%20(Black)%202016-Capacity.png


The discharge curves looks very good with nice tracking, except the 20A curve, the battery did blow a fuse during that discharge.
This also means this test will be missing a few curves.

Keeppower%20IMR18650%20NH1835%203500mAh%20(Black)%202016-CapacityTimeHours.png


Keeppower%20IMR18650%20NH1835%203500mAh%20(Black)%202016-CapacityTime.png


Keeppower%20IMR18650%20NH1835%203500mAh%20(Black)%202016-Energy.png


Keeppower%20IMR18650%20NH1835%203500mAh%20(Black)%202016-Charge.png




[size=+3]Conclusion[/size]

The battery is very good, but cannot sustain 20A discharge, this matches the specifications.



[size=+3]Notes and links[/size]

The batteries was supplied by Keeppower 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
 

Colorado_Cliff

Newly Enlightened
Joined
Mar 9, 2018
Messages
3
I appreciate your test and just purchased 4 of these batteries after seeing how these perform.
 
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