Test/review of Golisi IMR18650 3000mAh G30 (Gold)

HKJ

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[size=+3]Golisi IMR18650 3000mAh G30 (Gold)[/size]

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Official specifications:
  • Nominal capacity: 3000mAh
  • Constant current: 25A
  • Nominal voltage: 3.7V
  • Discharge cut-off voltage: 2.75V
  • Charging cut-off voltage: 2.20 +/- 0.05V
  • Internal impedance: 30mOhm
  • Standard charging current: cc/cv <=2A
  • Size: Diameter: 18mm, Height: 65mm
  • Net weight: 46g
  • Cycle times: >800
  • Operating temperature: Charging: 0°C ~ 45°C, discharging: -20°C ~ 60°C
  • Storage temperature: Room temperature or below.

Golisi%20IMR18650%203000mAh%20G30%20(Gold)-info.png


This is a high current 18650 with fairly high capacity.

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DSC_2139.jpg

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Golisi%20IMR18650%203000mAh%20G30%20(Gold)-Capacity.png


The battery handles up to 15A nicely, the two cells tracks very fine.

Golisi%20IMR18650%203000mAh%20G30%20(Gold)-Temp-15.0.png


At 15A the cell gets fairly hot

Golisi%20IMR18650%203000mAh%20G30%20(Gold)-Temp-20.0.png


At 20A I had to stop the discharge due to temperature.

Golisi%20IMR18650%203000mAh%20G30%20(Gold)-Temp-30.0.png


And also at 30A.

Golisi%20IMR18650%203000mAh%20G30%20(Gold)-CapacityTimeHours.png


Golisi%20IMR18650%203000mAh%20G30%20(Gold)-CapacityTime.png


Golisi%20IMR18650%203000mAh%20G30%20(Gold)-Energy.png


Golisi%20IMR18650%203000mAh%20G30%20(Gold)-PowerLoadTime.png


Golisi%20IMR18650%203000mAh%20G30%20(Gold)-TripCurrent.png


Golisi%20IMR18650%203000mAh%20G30%20(Gold)-Charge.png




[size=+3]Conclusion[/size]

The cell can handle a good amount of current and has good capacity, but rating the cell for 25A continuous discharge is a optimistic.
I will call it a good high cell.



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

The batteries was supplied by Golisi 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
 
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