Shockli 21700 4550mAh (Purple) 2018



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




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











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.





The batteries gets fairly warm at 20A



And I had to stop at 30A















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