Test/review of Geteed 21700 4800mAh (Yellow)

HKJ · 2018-07-23T13:25:53.000Z

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.

Conclusion

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

maukka · 2018-07-23T13:39:51.000Z

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

Satan · 2018-07-23T13:46:40.000Z

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

d_t_a · 2019-01-11T07:38:29.000Z

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

INR21700-48G
Samsung SDI

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

lumiere · 2019-01-11T13:28:19.000Z

maukka:

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

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

www.banggood.com

2PCS GETEED 3.7v 4800mAh 35A Hochleistungs-21700 20700 wiederaufladbarer...

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