Efest IMR14500 650mAh (Purple) 2017

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Official specifications:
Efest%20IMR14500%20650mAh%20(Purple)%202017-info

14500, i.e. AA sized LiIon batteries from Efest, rated for good capacity and high current.

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Efest%20IMR14500%20650mAh%20(Purple)%202017-Capacity

The discharge curves tracks kust about prefectly and the batteries can deliver nearly 7A before capacity starts to drop. This looks good.

Efest%20IMR14500%20650mAh%20(Purple)%202017-Temp-7.0

Temperature also looks fine at 7A

Efest%20IMR14500%20650mAh%20(Purple)%202017-CapacityTimeHours

Efest%20IMR14500%20650mAh%20(Purple)%202017-CapacityTime

Efest%20IMR14500%20650mAh%20(Purple)%202017-Energy

Efest%20IMR14500%20650mAh%20(Purple)%202017-PowerLoadTime

Efest%20IMR14500%20650mAh%20(Purple)%202017-TripCurrent

Efest%20IMR14500%20650mAh%20(Purple)%202017-Charge



Conclusion

Performance looks very good on these cell, both capacity and current handling is good.



Notes and links

The batteries was supplied by Efest 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
Comparison to other LiIon batteries