Test/review of Keeppower INR20700 3500mAh NH2035 (Black) 2019

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HKJ
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Location: Copenhagen, Denmark
Test/review of Keeppower INR20700 3500mAh NH2035 (Black) 2019

Keeppower INR20700 3500mAh NH2035 (Black) 2019
DSC_6828
Official specifications:


  • Capacity min.: 3475mAh
  • Capacity typ.: 3620mAh
  • Nominal voltage: 3.70V
  • Charge voltage: 4.20+/-0.05V
  • Standard discharge cut-off voltage: 2.50V
  • Standard charge current: 2450mA
  • Charge termination current: 100mA
  • Standard discharge current: 5100mA
  • Max. continuous discharge current: 30A

Keeppower%20INR20700%203500mAh%20NH2035%20(Black)%202019-info
This is a high current 20700 cell from Keeppower with moderate capacity.
DSC_6827
DSC_6829 DSC_6830
DSC_6832
DSC_6832
Keeppower%20INR20700%203500mAh%20NH2035%20(Black)%202019-Capacity
The two cells tracks nicely, capacity drops slowly with increasing load. I stopped the 30A test because the batteries got hot.
Keeppower%20INR20700%203500mAh%20NH2035%20(Black)%202019-Temp-15.0
Keeppower%20INR20700%203500mAh%20NH2035%20(Black)%202019-Temp-20.0
Keeppower%20INR20700%203500mAh%20NH2035%20(Black)%202019-Temp-30.0
Keeppower%20INR20700%203500mAh%20NH2035%20(Black)%202019-CapacityTimeHours
Keeppower%20INR20700%203500mAh%20NH2035%20(Black)%202019-CapacityTime
Keeppower%20INR20700%203500mAh%20NH2035%20(Black)%202019-Energy
Keeppower%20INR20700%203500mAh%20NH2035%20(Black)%202019-PowerLoadTime
Keeppower%20INR20700%203500mAh%20NH2035%20(Black)%202019-TripCurrent
Keeppower%20INR20700%203500mAh%20NH2035%20(Black)%202019-Charge
Keeppower%20INR20700%203500mAh%20NH2035%20%28Black%29%202019-Pulse-1.0A-10-10-2.5V-IR
Conclusion
These moderate capacity 20700 cells is good cells for high current.
Notes and links
The battery 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
Graphical comparison to 18650 and other batteries
Table with all tested LiIon batteries

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

Superstocker
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Last seen: 7 hours 13 min ago
Joined: 11/28/2018 - 21:22
Posts: 126
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Thanks HKJ! I appreciate your work.