Efest IMR16340 V2 550mAh (red)

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Official specifications:
Efest%20IMR16340%20V2%20550mAh%20(red)-info

These IMR batteries has around 500mAh at any current draw.

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Efest%20IMR16340%20V2%20550mAh%20(red)-Capacity

Very nice curves for the batteries, they has good tracking and capacity is independend of load.

Efest%20IMR16340%20V2%20550mAh%20(red)-CapacityTimeHours

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Efest%20IMR16340%20V2%20550mAh%20(red)-Energy

Efest%20IMR16340%20V2%20550mAh%20(red)-PowerLoadTime

Efest%20IMR16340%20V2%20550mAh%20(red)-TripCurrent

For 16340 batteries they handle load very well.

Efest%20IMR16340%20V2%20550mAh%20(red)-Charge



Conclusion

These IMR batteries have very good performance at any load, but the capacity is, of course, not that high.
At the current time I can only rate them acceptable, because Efest is a new company, and the batteries is not from one of the big brands.



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