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[SIZE=+3]Efest IMR18650 2000mAh (Red) 2014[/SIZE]
[SIZE=+2]V1 flat top[/SIZE]
Official specifications:
Thse batteries are fairly low capacity and not really high current.
The batteries do track and can deliver 7A, this is not very impressive for 18650 IMR cells today.
[SIZE=+2]V2 button top[/SIZE]
Official specifications:
The flat top batteries are basically the same.
[SIZE=+3]Conclusion[/SIZE]
As IMR batteries they are not very impressive.
At 7A and below they do have an acceptable performance.
[SIZE=+3]Notes and links[/SIZE]
The batteries was supplied by Efest 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
[SIZE=+2]V1 flat top[/SIZE]
Official specifications:
- Efest IMR 18650
- Brand: Efest Model: 18650 V1
- Capacity:2000mah Material: Li-Mn
- Positive Pole: flat top
- Sizes: 18.11(L)*65.02(W)mm
Thse batteries are fairly low capacity and not really high current.
The batteries do track and can deliver 7A, this is not very impressive for 18650 IMR cells today.
[SIZE=+2]V2 button top[/SIZE]
Official specifications:
- Nominal Voltage: 3.7v
- Battery Model: 18650v Capacity: 2000mAh
- Positive: Nipple Top (button top)
- Cycle Life: 500 Cycles
- Max Charging Rate: 4.5amps
- Sizes: 18.10(L)*66.06(W)mm
The flat top batteries are basically the same.
[SIZE=+3]Conclusion[/SIZE]
As IMR batteries they are not very impressive.
At 7A and below they do have an acceptable performance.
[SIZE=+3]Notes and links[/SIZE]
The batteries was supplied by Efest 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
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