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[SIZE=+3]Efest IMR18650 2500mAh (Purple) 2014[/SIZE]
Official specifications:
This is a very high current battery, but the 35A rating might be a bit optimistic.
These curves shows a very good battery, there is a good tracking between the batteries and not much capacity drop from 0.2A to 20A.
[SIZE=+3]Conclusion[/SIZE]
Usual a battery with unspecified cell will not get better rating than acceptable, but there is no doubt this is a very good cell that is used here.
[SIZE=+3]Notes and links[/SIZE]
The batteries was supplied by Akkuteile.de 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
Official specifications:
- Capacity: 2500mAh
- Min. Capacity: 2400mAh
- Nominal voltage: 3,6 - 3,7V
- Charge voltage: 4,20V ±0,05
- Discharge voltage: 2,75V
- Max discharge current: 35A (14C)
- Positive pole: Flat Top
- Protection circuit (BMS): no (unprotected)
- Diameter: 18,40mm ± 0,1
- Height: 65,25mm ± 0,2
- Weight: 48g ± 1
- Charging methode: CC-CV
This is a very high current battery, but the 35A rating might be a bit optimistic.
These curves shows a very good battery, there is a good tracking between the batteries and not much capacity drop from 0.2A to 20A.
[SIZE=+3]Conclusion[/SIZE]
Usual a battery with unspecified cell will not get better rating than acceptable, but there is no doubt this is a very good cell that is used here.
[SIZE=+3]Notes and links[/SIZE]
The batteries was supplied by Akkuteile.de 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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