Test/review of Samsung INR21700-48X 4800mAh (Gray)

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[size=+3]Samsung INR21700-48X 4800mAh (Gray)[/size]

DSC_3853.jpg


Official specifications:
  • Typical capacity: 4800mAh
  • Minimum capacity: 4650mAh
  • Maximum charging voltage: 4.2V (4.15V for cycle life)
  • Nominal voltage: 3.64V
  • Charge method: CC-CV
  • Charging current rate: 0.33C (1584mA)
  • Discharge cut-off voltage: 2.5V (3.0V for cycle life)
  • Cycle life: 3000 to 70%

Samsung%20INR21700-48X%204800mAh%20(Gray)-info.png


Another version of the Samsung 4800mAh LiIon cell with possible high cycle life.

DSC_3852.jpg


DSC_3854.jpg
DSC_3855.jpg


DSC_3856.jpg

DSC_3857.jpg


Samsung%20INR21700-48X%204800mAh%20(Gray)-Capacity.png


The two cells match very well and can handle about 10A

Samsung%20INR21700-48X%204800mAh%20(Gray)-Temp-10.0.png


Samsung%20INR21700-48X%204800mAh%20(Gray)-Temp-15.0.png


Samsung%20INR21700-48X%204800mAh%20(Gray)-Temp-20.0.png


Samsung%20INR21700-48X%204800mAh%20(Gray)-CapacityTimeHours.png


Samsung%20INR21700-48X%204800mAh%20(Gray)-CapacityTime.png


Samsung%20INR21700-48X%204800mAh%20(Gray)-Energy.png


Samsung%20INR21700-48X%204800mAh%20(Gray)-PowerLoadTime.png


Samsung%20INR21700-48X%204800mAh%20(Gray)-TripCurrent.png


Samsung%20INR21700-48X%204800mAh%20(Gray)-Charge.png


DischargeSamsung%20INR21700-48X%204800mAh%20%28Gray%29-pulse-1.0%2010%2010-IR.png




[size=+3]Conclusion[/size]

This is high cycle life batteries, but they must be treated carefully to get the long cycle life.
They are not high current batteries, but can handle a peak in current.



[size=+3]Notes and links[/size]

The battery was supplied by Vapcell 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
Graphical comparison to 18650 and other batteries
Table with all tested LiIon batteries
 
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