Efest IMR18350 800mAh (Red)

V1 flat top

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Official specifications:
Efest%20IMR18350%20V1%20800mAh%20(Red)-info

DSC_0513 DSC_0542

I got a pile of batteries in one envelope, not the best way to ship batteries, even when they are shrink wrapped. Efest have changed their packing.

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Efest%20IMR18350%20V1%20800mAh%20(Red)-Capacity

Efest%20IMR18350%20V1%20800mAh%20(Red)-CapacityTimeHours

Efest%20IMR18350%20V1%20800mAh%20(Red)-CapacityTime

Efest%20IMR18350%20V1%20800mAh%20(Red)-Energy

Efest%20IMR18350%20V1%20800mAh%20(Red)-PowerLoadTime

Efest%20IMR18350%20V1%20800mAh%20(Red)-TripCurrent

Efest%20IMR18350%20V1%20800mAh%20(Red)-Charge




V2 button top

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Official specifications:
Efest%20IMR18350%20V2%20800mAh%20(Red)-info

DSC_0513 DSC_0566

I got a pile of batteries in one envelope, not the best way to ship batteries, even when they are shrink wrapped. Efest have changed their packing.

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Efest%20IMR18350%20V2%20800mAh%20(Red)-Capacity

Efest%20IMR18350%20V2%20800mAh%20(Red)-CapacityTimeHours

Efest%20IMR18350%20V2%20800mAh%20(Red)-CapacityTime

Efest%20IMR18350%20V2%20800mAh%20(Red)-Energy

Efest%20IMR18350%20V2%20800mAh%20(Red)-PowerLoadTime

Efest%20IMR18350%20V2%20800mAh%20(Red)-TripCurrent

Efest%20IMR18350%20V2%20800mAh%20(Red)-Charge



Conclusion

These IMR batteries can handle high loads, but has a slight difference in capacity, i.e. care must be taken not to run one battery down.
I will rate them as acceptable.



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
Comparison to other LiIon batteries