Test/Review of Enercig 18650 2100mA (Gray)

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HKJ
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Test/Review of Enercig 18650 2100mA (Gray)

Enercig 18650 2100mA (Gray)
DSC_4870
Official specifications:


  • Typical capacity: 2100mAh
  • Minimum capacity: 2000mAh
  • Nominal voltage: 3.6V
  • Standard charge: CC/CV, 0.2C, 4.2V
  • Standard discharge: CC, 0.2C, 2.5V
  • End of charge voltage: 4.20V +/- 0.05V
  • End of charge current: 0.02C in CV mode
  • End of discharge voltage: 2.50V
  • Quick charge current: 4000mA, 2C
  • Pulse charge (Max): 12000mA, 6C bis 4.15V
  • Continuous maximum discharge current: 30000mA, 15C
  • Max. discharge current Vs. time: 30-40A > 80 seconds, 50A > 40 seconds, 60A > 30 seconds, 80A > 15 seconds, 100A > 8 seconds (Temp limit 80°C)
  • Initial impedance: 7 – 15mOhm
  • Weight: Approx: 45.5 +/- 1.5g
  • Operating temperature: Charging 0°C ~45°C, discharging -20°C ~ 60°C
  • Storage temperature: -5°C ~ 35°C
  • Cycle life: >300 cycles at 0.5C charge/discharge.

Enercig%2018650%202100mA%20(Gray)-info
This is very high current batteries.
DSC_4848
DSC_4871 DSC_4872
DSC_4873
DSC_4874
DSC_4875
Enercig%2018650%202100mA%20(Gray)-Capacity
Very good discharge curves, the two cells tracks perfectly and capacity is nearly constant up to 20A.
Enercig%2018650%202100mA%20(Gray)-Temp-15.0
Enercig%2018650%202100mA%20(Gray)-Temp-20.0
Enercig%2018650%202100mA%20(Gray)-Temp-30.0
Even at 30A the temperature raise is acceptable, but they do get hot.
Enercig%2018650%202100mA%20(Gray)-CapacityTimeHours
Enercig%2018650%202100mA%20(Gray)-CapacityTime
Enercig%2018650%202100mA%20(Gray)-Energy
Enercig%2018650%202100mA%20(Gray)-PowerLoadTime
Enercig%2018650%202100mA%20(Gray)-TripCurrent
Enercig%2018650%202100mA%20(Gray)-Charge
Conclusion
For anybody that want to play with 30A or even more from a single cell, this is the cell, but the capacity is a bit limited.
This is a very good high current cell.
Notes and links
The batteries was supplied by ENERDan 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): https://lygte-info.dk/