Test/review of Sony US18650VC7 3400mAh (Green)

HKJ

HKJ

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[size=+3]Sony US18650VC7 3400mAh (Green)[/size]

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Official specifications:
  • Nominal capacity: 3500mAh (2V cut-off)
  • Rated capacity: 3400mAh (2V cut-off)
  • Capacity at 5A: 2720mAh (2.5V cut-off)
  • Nominal voltage: 3.6V
  • Charge voltage: 4.2V +/- 0.05V
  • Charge current: 1.0A.
  • Discharge current: up to 8A.
  • Cycle life: 300 cycles to 70% at 1A charge and 5A discharge, 2.5V cut-off.

Sony%20US18650VC7%203400mAh%20(Green)-info.png


This is high capacity cells that can deliver a decent amount of current, but are not high current cells.

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Sony%20US18650VC7%203400mAh%20(Green)-Capacity.png


The discharge curves tracks nicely, capacity may look at bit low, but that may be because I do not discharge to 2V. They easily matches the 5A rated capacity.

Sony%20US18650VC7%203400mAh%20(Green)-Temp-10.0.png


Sony%20US18650VC7%203400mAh%20(Green)-Temp-15.0.png


Sony%20US18650VC7%203400mAh%20(Green)-CapacityTimeHours.png


Sony%20US18650VC7%203400mAh%20(Green)-CapacityTime.png


Sony%20US18650VC7%203400mAh%20(Green)-Energy.png


Sony%20US18650VC7%203400mAh%20(Green)-PowerLoadTime.png


Sony%20US18650VC7%203400mAh%20(Green)-TripCurrent.png


Sony%20US18650VC7%203400mAh%20(Green)-Charge.png




[size=+3]Conclusion[/size]

Very good high capacity batteries from a big brand.



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

Vapcell told me that I was missing some cells in my comparator and they would be happy to supply them.

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
 
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