Test/review of LG 21700 M50T 5000mAh (Gray)

HKJ

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[size=+3]LG 21700 M50T 5000mAh (Gray)[/size]

DSC_0285.jpg


Official specifications:
  • Nominal energy: 18.20 Wh
  • Minimum energy: 17.60 Wh
  • Minimum capacity: 4850mAh
  • Nominal voltage: 3.63V
  • Standard charging current: 1,455A
  • Max charging current: 3.395A
  • Charging voltage: 4.2V
  • Charge interrupt current: 50 mA
  • Max discharge current: 7.275A
  • Switch-off voltage: 2.5V
  • Weight: 68 ± 1 g
  • Protected: No.
  • Rechargeable: Yes
  • Dimensions: 21.1mm x 70.2mm

LG%2021700%20M50T%205000mAh%20(Gray)-info.png


This is a high capacity 21700 cell with about 5000mAh, the cell is not for high current.

DSC_0286.jpg
DSC_0287.jpg


DSC_0288.jpg

DSC_0289.jpg


LG%2021700%20M50T%205000mAh%20(Gray)-Capacity.png


The two cells are well matched.

LG%2021700%20M50T%205000mAh%20(Gray)-Temp-7.0.png


LG%2021700%20M50T%205000mAh%20(Gray)-Temp-10.0.png


LG%2021700%20M50T%205000mAh%20(Gray)-Temp-15.0.png


LG%2021700%20M50T%205000mAh%20(Gray)-CapacityTimeHours.png


LG%2021700%20M50T%205000mAh%20(Gray)-CapacityTime.png


LG%2021700%20M50T%205000mAh%20(Gray)-Energy.png


LG%2021700%20M50T%205000mAh%20(Gray)-PowerLoadTime.png


LG%2021700%20M50T%205000mAh%20(Gray)-TripCurrent.png


LG%2021700%20M50T%205000mAh%20(Gray)-Charge.png


Discharge-LG%2021700%20M50T%205000mAh%20%28Gray%29-pulse-1.0%2010%2010-IR.png




[size=+3]Conclusion[/size]

This is a very good high capacity cell, but I got slightly less capacity compare the M50.



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

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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