Shockli 6x18650 7.4V 6600mAh

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Official specifications:
Shockli%206x18650%207.4V%206600mAh-info

This is a 6 cell bicycle pack.

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The protection circuit looks like it is checking both cell groups, but without balancing.

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Shockli%206x18650%207.4V%206600mAh-Capacity

Capacity is considerable better than rated. The over current protection will trip at loads much above 5A (This is temperature depend).
The pack was up to about 51 during my test (Measured in the pouch).

Shockli%206x18650%207.4V%206600mAh-CapacityTimeHours

Shockli%206x18650%207.4V%206600mAh-CapacityTime

Shockli%206x18650%207.4V%206600mAh-Energy

Shockli%206x18650%207.4V%206600mAh-PowerLoadTime

The pack can easily drive a 10W load, but 30W is a bit much (25W would probably be fine).

Shockli%206x18650%207.4V%206600mAh-TripCurrent

Shockli%206x18650%207.4V%206600mAh-Charge



Conclusion

The pack works fine, but has a fairly low capacity (4 high capacity cells would give the same performance).



Notes and links

The battery was supplied by Shockli 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