Test/review of Geteed 21700 4800mAh (Yellow)

Geteed 21700 4800mAh (Yellow)

Official specifications:

  • Battery: 21700

  • Battery Type: Lithium-ion

  • Head Type: Flat Top

  • Protected: No

  • Practical Capacity (mAh): 4800mAh

  • Voltage(V): 3.7V

  • Charge Current: 1A

  • Max. Discharge Current: 35A

  • Charging Time.: standard charge: 5h rapid charge: 2.5h

This is a unknown brand with a high capacity 21700 cell.

The discharge curves looks very good up to 10A, at higher current the cell gets too warm.


This is a good quality cell with a lot of capacity, but it is not a high current cell.

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
Compare to 18650 and other batteries

Thanks for the test! Looks like a Samsung INR21700-48G is under the wrappers and not a bad price at under $8

Thanks HKJ ,very look alike Samsung INR21700-48G .

Apparently the Geteed 4800mAh 21700 would really be the Samsung INR21700-48G, as can be seen underneath the wrapper…

Samsung SDI

Any idea how to identify the date code of this Samsung battery? It indicates “H3B1” and “W24”.

Slightly cheaper at BG, $13.99 for two after coupon AC18 (with free shipping to US):