Keeppower IMR18650 2900mAh (Black) 2014
%202014/DSC_4419.jpg)
Official specifications:
- KeepPower 18650 3.6V/3.7V 2900mAh High Drain Li-ion Rechargeable Battery
- Min Capacity: 2750mAh
- Typical Capacity: 2900mAh
- Normal Voltage: 3.6V
- Quality Lithium Ion rechargeable cell made in Japan
- Maximum Capacity and Reliability
- Maximum Constant Discharge Current: 10A
- 4.2 volts max voltage and 3.6-3.7 volts nominal voltage
- Button top: Yes
- Dimension: (D)18.50mm*(H)66.50mm
- Weight: 46.0g
%202014/Keeppower%20IMR18650%202900mAh%20(Black)%202014-info.png)
This is a high capacity high current battery
%202014/DSC_4418.jpg)
%202014/DSC_4421.jpg)
%202014/DSC_4422.jpg)
%202014/DSC_4423.jpg)
%202014/Keeppower%20IMR18650%202900mAh%20(Black)%202014-Capacity.png)
The two cells has very good tracking and only a minor capacity loss when the current is increased.
%202014/Keeppower%20IMR18650%202900mAh%20(Black)%202014-CapacityTimeHours.png)
%202014/Keeppower%20IMR18650%202900mAh%20(Black)%202014-CapacityTime.png)
%202014/Keeppower%20IMR18650%202900mAh%20(Black)%202014-Energy.png)
%202014/Keeppower%20IMR18650%202900mAh%20(Black)%202014-PowerLoadTime.png)
%202014/Keeppower%20IMR18650%202900mAh%20(Black)%202014-TripCurrent.png)
%202014/Keeppower%20IMR18650%202900mAh%20(Black)%202014-Charge.png)
Conclusion
There are cells with higher voltage at high current, but none other with this much capacity.
With a Panasonic cell inside it is a very good battery, that can deliver a lot of current.
Notes and links
The battery was supplied by Keeppower 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