EnerPower+ 18650 2900mAh 3C (Blue)
/DSC_0408.jpg)
Official specifications:
- Panasonic NCR18650PD 2900 mAh
- Minimum capacity: 2800 mAh
- High Drain - this battery is made for high current (up to 10A) applications. With our 7A PCB this battery loses hardly any capacity on high discharge current
- Standard charging current: 580mAh for 5.5 hours to 4.2 V
- Maximum charge current 1450 mA
- Protection circuit: 7 A - For Flashlights with over 20 Wh
- Deep discharge protection: at 3V
- Raised positive nipple - Button Top
- Nickel base plate for added durability
- Panasonic Cell - UL - certification
- Diameter: 18 mm
- Length: 69 mm
- Weight: 48g +/- 1-2g
- With our own welding innovation the button-top would be weld directly on the cell - lower internal resistance and more robustness.
- CE certification
- Assembly "Made in Germany
/EnerPower+%2018650%202900mAh%203C%20(Blue)-info.png)
This battery uses a new version of the Panasonic 2900 mAh cell designed for higher current.
The cell used can be discharged down to 2.5 volt, in my test I only discharges to 2.8 volt, i.e. I do not measure the full capacity. But then, not all lights will be able to use the full capacity.
/DSC_0351.jpg)
/DSC_0353.jpg)
/DSC_0354.jpg)
/DSC_0355.jpg)
/DSC_0356.jpg)
/EnerPower+%2018650%202900mAh%203C%20(Blue)-Capacity.png)
The voltage and capacity at higher current is slighty higher then the old 2900 mAh cell (Use my comperator to compare).
The two batteries I got does show a very good match.
/EnerPower+%2018650%202900mAh%203C%20(Blue)-CapacityTimeHours.png)
/EnerPower+%2018650%202900mAh%203C%20(Blue)-CapacityTime.png)
/EnerPower+%2018650%202900mAh%203C%20(Blue)-Energy.png)
/EnerPower+%2018650%202900mAh%203C%20(Blue)-PowerLoadTime.png)
/EnerPower+%2018650%202900mAh%203C%20(Blue)-TripCurrent.png)
/EnerPower+%2018650%202900mAh%203C%20(Blue)-Charge.png)
Conclusion
The higher voltage at high currents is a nice improvement to the 2900 cell.
The battery gets a very good rating.
Notes and links
The batteries was supplied by ENERDan 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