Test/review of Geteed 21700 4800mAh (Yellow)

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HKJ
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Location: Copenhagen, Denmark
Test/review of Geteed 21700 4800mAh (Yellow)

Geteed 21700 4800mAh (Yellow)
DSC_9301
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

Geteed%2021700%204800mAh%20%28Yellow%29-info
This is a unknown brand with a high capacity 21700 cell.
DSC_9300
DSC_9302 DSC_9303
DSC_9304
DSC_9305
Geteed%2021700%204800mAh%20(Yellow)-Capacity
The discharge curves looks very good up to 10A, at higher current the cell gets too warm.
Geteed%2021700%204800mAh%20(Yellow)-Temp-10.0
Geteed%2021700%204800mAh%20(Yellow)-Temp-15.0
Geteed%2021700%204800mAh%20(Yellow)-Temp-20.0
Geteed%2021700%204800mAh%20(Yellow)-CapacityTimeHours
Geteed%2021700%204800mAh%20(Yellow)-CapacityTime
Geteed%2021700%204800mAh%20(Yellow)-Energy
Geteed%2021700%204800mAh%20(Yellow)-PowerLoadTime
Geteed%2021700%204800mAh%20(Yellow)-TripCurrent
Geteed%2021700%204800mAh%20(Yellow)-Charge
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

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

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

Satan@103TFS
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Thanks HKJ ,very look alike Samsung INR21700-48G .

d_t_a
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Location: Manila, Philippines

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
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Joined: 07/31/2015 - 00:28
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Location: Texas

maukka wrote:
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):
https://www.banggood.com/2PCS-GETEED-3_7v-4800mAh-35A-High-Power-21700-20700-Rechargeable-Li-ion-Battery-p-1259479.html