EnerPower+ 18650 2500mAh (Blue) 2015

Button top version

DSC_9037

Official specifications:
EnerPower+%2018650%202500mAh%20(Blue)%20BT%202015-info

These batteries is something very rate, they are protected high current cells. This means that they cannot be over discharged, but it also means a bit lower performance due to the resistance in the protection.

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EnerPower+%2018650%202500mAh%20(Blue)%20BT%202015-Capacity

The cells looks very good, they track perfectly, but due to the protection they cannot deliver the rated 20A.

EnerPower+%2018650%202500mAh%20(Blue)%20BT%202015-CapacityTimeHours

EnerPower+%2018650%202500mAh%20(Blue)%20BT%202015-CapacityTime

EnerPower+%2018650%202500mAh%20(Blue)%20BT%202015-Energy

EnerPower+%2018650%202500mAh%20(Blue)%20BT%202015-PowerLoadTime

EnerPower+%2018650%202500mAh%20(Blue)%20BT%202015-TripCurrent

EnerPower+%2018650%202500mAh%20(Blue)%20BT%202015-Charge



Flat top version

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Official specifications:
EnerPower+%2018650%202500mAh%20(Blue)%20FT%202015-info

Same cell as above, but in a flat top version. This is not the usual flat top design, with the original positive top of the battery, but instead with a very low button top.

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EnerPower+%2018650%202500mAh%20(Blue)%20FT%202015-Capacity

The performance is the same as the button top.

EnerPower+%2018650%202500mAh%20(Blue)%20FT%202015-CapacityTimeHours

EnerPower+%2018650%202500mAh%20(Blue)%20FT%202015-CapacityTime

EnerPower+%2018650%202500mAh%20(Blue)%20FT%202015-Energy

EnerPower+%2018650%202500mAh%20(Blue)%20FT%202015-PowerLoadTime

EnerPower+%2018650%202500mAh%20(Blue)%20FT%202015-TripCurrent

Remember that this test is for short time over load, the protection will trip at a lower current when doing longer runs.

EnerPower+%2018650%202500mAh%20(Blue)%20FT%202015-Charge



Conclusion

For people that do not need the full performance, this is a much safer battery to use than the unprotected version.
It is a good battery, but I would have liked the over current protection at a higher current.



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
Compare to 18650 and other batteries