Test/review of Shockli 21700 4550mAh (Purple) 2018

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HKJ
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Test/review of Shockli 21700 4550mAh (Purple) 2018

Shockli 21700 4550mAh (Purple) 2018

DSC_9520

Official specifications:


  • Nominal voltage: 3.7V
  • Nomimal capacity: 4550mAh
  • Maximum continuous current: 22A

Shockli%2021700%204550mAh%20(Purple)%202018-info

High capacity and high current in the new 21700 format from Shockli.

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Shockli%2021700%204550mAh%20(Purple)%202018-Capacity

The two batteries are matching very fine and can handle up to 20A. They cannot deliver full capacity to 2.8V, but maybe to a lower voltage.

Shockli%2021700%204550mAh%20(Purple)%202018-Temp-15.0

Shockli%2021700%204550mAh%20(Purple)%202018-Temp-20.0

The batteries gets fairly warm at 20A

Shockli%2021700%204550mAh%20(Purple)%202018-Temp-30.0

And I had to stop at 30A

Shockli%2021700%204550mAh%20(Purple)%202018-CapacityTimeHours

Shockli%2021700%204550mAh%20(Purple)%202018-CapacityTime

Shockli%2021700%204550mAh%20(Purple)%202018-Energy

Shockli%2021700%204550mAh%20(Purple)%202018-PowerLoadTime

Shockli%2021700%204550mAh%20(Purple)%202018-TripCurrent

Shockli%2021700%204550mAh%20(Purple)%202018-Charge



Conclusion

The batteries has lot of capacity and can deliver fairly high current, it looks like good batteries.



Notes and links

The battery was supplied by shockli.com 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
Compare to 18650 and other batteries

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

Agro
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Better power delivery than Liitokala Lii-40A with ~300 mAh more? Looks good!

will34
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Thanks for the review