Keeppower 18650 3400mAh P1834J (Black) 2019
%202019/DSC_6847.jpg)
Official specifications:
- Nominal capacity: 3400mAh
- Minimum capacity: 3250mAh
- Nominal voltage: 3.70V
- Charge voltage: 4.20 +/-0.05V
- Discharge cut-off voltage: 2.50V
- Standard charge current: 1500mA
%202019/Keeppower%2018650%203400mAh%20P1834J%20(Black)%202019-info.png)
This is protected high capacity 18650 cells from Keeppower.
%202019/DSC_6846.jpg)
%202019/DSC_6848.jpg)
%202019/DSC_6849.jpg)
%202019/DSC_6850.jpg)
%202019/DSC_6851.jpg)
%202019/Keeppower%2018650%203400mAh%20P1834J%20(Black)%202019-Capacity.png)
The two cells tracks nicely and the protection trips when they are overloaded.
%202019/Keeppower%2018650%203400mAh%20P1834J%20(Black)%202019-Temp-5.0.png)
%202019/Keeppower%2018650%203400mAh%20P1834J%20(Black)%202019-Temp-7.0.png)
%202019/Keeppower%2018650%203400mAh%20P1834J%20(Black)%202019-CapacityTimeHours.png)
%202019/Keeppower%2018650%203400mAh%20P1834J%20(Black)%202019-CapacityTime.png)
%202019/Keeppower%2018650%203400mAh%20P1834J%20(Black)%202019-Energy.png)
%202019/Keeppower%2018650%203400mAh%20P1834J%20(Black)%202019-PowerLoadTime.png)
%202019/Keeppower%2018650%203400mAh%20P1834J%20(Black)%202019-TripCurrent.png)
%202019/Keeppower%2018650%203400mAh%20P1834J%20(Black)%202019-Charge.png)
Conclusion
This is good protected cells. They can deliver above 8A for a short time and a bit below 7A during a full discharge.
Notes and links
The batteries 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
Graphical comparison to 18650 and other batteries
Table with all tested LiIon batteries