Efest IMR17650 V1 1200mAh (Red)

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Official specifications:
Efest%20IMR17650%20V1%201200mAh%20(Red)-info

This is a 17650 battery, i.e. slightly thinner than the usual 18650 batteries. This does also mean less capacity, but for an IMR battery the capacity is very good.

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Efest%20IMR17650%20V1%201200mAh%20(Red)-Capacity

The performance is also very good up to 7A (and maybe higher).

Efest%20IMR17650%20V1%201200mAh%20(Red)-CapacityTimeHours

Efest%20IMR17650%20V1%201200mAh%20(Red)-CapacityTime

Efest%20IMR17650%20V1%201200mAh%20(Red)-Energy

Efest%20IMR17650%20V1%201200mAh%20(Red)-PowerLoadTime

Efest%20IMR17650%20V1%201200mAh%20(Red)-TripCurrent

Efest%20IMR17650%20V1%201200mAh%20(Red)-Charge



Conclusion

These IMR batteries have good performance at any load and with a good capacity for an IMR battery.
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.

Remember that these batteries are 17650, if there is space a 18650 will have better performance.



Notes and links

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