Elfeland BRC18650 3800mAh (Red)

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Official specifications:
Elfeland%20BRC18650%203800mAh%20(Red)-info

These batteries are rated a bit higher than possible and the two tested cells has very different weight (both weight less than a quality 18650).

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Notice the different plus pole on the two cells.

Elfeland%20BRC18650%203800mAh%20(Red)-Capacity

As expected they are not very good cells and they are also very different.

Elfeland%20BRC18650%203800mAh%20(Red)-Temp-2.0

With the very low energy contents they do not get very warm.


Elfeland%20BRC18650%203800mAh%20(Red)-CapacityTimeHours

Elfeland%20BRC18650%203800mAh%20(Red)-CapacityTime

Elfeland%20BRC18650%203800mAh%20(Red)-Energy

Elfeland%20BRC18650%203800mAh%20(Red)-PowerLoadTime

Elfeland%20BRC18650%203800mAh%20(Red)-TripCurrent

Elfeland%20BRC18650%203800mAh%20(Red)-Charge



Conclusion

These cells are specially made bad cells.

The rating can only be bad.


Notes and links

The A cell with vent holes weighs 35.1g and the B cell without vent holes weighs 24.4 grams

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