Efest IMR18650 2000mAh (red)
V1 Flat top

DSC_1005

Official specifications:
Efest%20IMR18650%20V1%202000mAh%20(red)-info

Internal resistance is calculated between 4A and 5A

DSC_0790

DSC_1006 DSC_1007

DSC_1008
DSC_1009

Efest%20IMR18650%20V1%202000mAh%20(red)-Capacity

Acceptable performance up to 7A, but they have problems with 10A.

Efest%20IMR18650%20V1%202000mAh%20(red)-CapacityTimeHours

Efest%20IMR18650%20V1%202000mAh%20(red)-CapacityTime

Efest%20IMR18650%20V1%202000mAh%20(red)-Energy

Efest%20IMR18650%20V1%202000mAh%20(red)-PowerLoadTime

Efest%20IMR18650%20V1%202000mAh%20(red)-TripCurrent

Efest%20IMR18650%20V1%202000mAh%20(red)-Charge



V2 Button top

DSC_1000

Official specifications:
Efest%20IMR18650%20V2%202000mAh%20(red)-info

Internal resistance is calculated between 4A and 5A

DSC_0790

DSC_1001 DSC_1002

DSC_1003
DSC_1004

Efest%20IMR18650%20V2%202000mAh%20(red)-Capacity

Acceptable performance up to 5A, but they have problems with 7A and 10A.

Efest%20IMR18650%20V2%202000mAh%20(red)-CapacityTimeHours

Efest%20IMR18650%20V2%202000mAh%20(red)-CapacityTime

Efest%20IMR18650%20V2%202000mAh%20(red)-Energy

Efest%20IMR18650%20V2%202000mAh%20(red)-PowerLoadTime

Efest%20IMR18650%20V2%202000mAh%20(red)-TripCurrent

Efest%20IMR18650%20V2%202000mAh%20(red)-Charge



Conclusion

These batteries are supposed to be IMR cells, but their performance it not good at high currents.
At 5A and below they do have an acceptable performance.