Test/review of Vapcell INR18650 2900mAh K29 (Purple) 2021

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HKJ
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Test/review of Vapcell INR18650 2900mAh K29 (Purple) 2021

Vapcell INR18650 2900mAh K29 (Purple) 2021
DSC_4790
Official specifications:


  • Model: K29
  • Size: 18.3*65.2mm
  • Typical Capacity: 2900mAh (0.2C discharge)
  • Min capacity: 2800mAh (0.2C discharge)
  • Nominal voltage: 3.60V
  • Max Continuous Discharge Current: 20A
  • Max Discharge Current: 35A
  • End-of-charge voltage: 4.20V
  • End-of-discharge Voltage: 2.5V
  • Weight: 48g ( Appr)
  • Internal resistance: 14mOhm ( Appr) AC 1kHz
  • Standard Charge: 1500mA ,CCCV 100mA cut-off
  • Quick Charge Current: 4000mA

Vapcell%20INR18650%202900mAh%20K29%20(Purple)%202021-info
A 18650 cell with decent capacity and current.
DSC_4788 DSC_4789
DSC_4791 DSC_4792
DSC_4793
DSC_4794
DSC_4795
Vapcell%20INR18650%202900mAh%20K29%20(Purple)%202021-Capacity
The two cells match nicely and can deliver the rated 20A current.
Vapcell%20INR18650%202900mAh%20K29%20(Purple)%202021-Temp-15.0
Vapcell%20INR18650%202900mAh%20K29%20(Purple)%202021-Temp-20.0
Vapcell%20INR18650%202900mAh%20K29%20(Purple)%202021-CapacityTimeHours
Vapcell%20INR18650%202900mAh%20K29%20(Purple)%202021-CapacityTime
Vapcell%20INR18650%202900mAh%20K29%20(Purple)%202021-Energy
Vapcell%20INR18650%202900mAh%20K29%20(Purple)%202021-PowerLoadTime
Vapcell%20INR18650%202900mAh%20K29%20(Purple)%202021-TripCurrent
Vapcell%20INR18650%202900mAh%20K29%20(Purple)%202021-Charge
Discharge-Vapcell%20INR18650%202900mAh%20K29%20%28Purple%29%202021-pulse-1.0%2010%2010-IR
Conclusion
The cells looks good and can deliver a good amount of current for the capacity.
Notes and links
The batteries was supplied by Vapcell 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/

JaredM
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Joined: 10/31/2011 - 13:33
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Thanks as always HKJ. I wish there was an international prize I could nominate you for.

I wonder if these are cells are Sinowatt SW18650-30SP ?

https://fundrazr.com/osturaband

No affiliation, just a fan.

vapcell Dennis
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Thanks HKJ Smile