Test/review of Vappower IMR26650 5000mAh (Green)

HKJ

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[size=+3]Vappower IMR26650 5000mAh (Green)[/size]

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Official specifications:
  • Product name: Vappower IMR26650 5000MAH Li-ion Battery
  • Typical Capacity: 5000mAh
  • The minimum capacity: 4900mAh
  • Charging voltage: 4.20±0.05V
  • Maximum charge voltage: 4.25V
  • Nominal Voltage: 3.7V
  • Cut off Voltage: 2.5V
  • Continuous maximum charge current: 4A
  • Continuous maximum pulse charge current: 12A
  • Continuous discharge current: 35A
  • Internal resistance: Max 32m Ohm
  • Size: Max.26.50 x 66.5.00mm (diameter x length)
  • Weight: Max.94.5g
  • Quantity:1pcs

Vappower%20IMR26650%205000mAh%20(Green)-info.png


High capacity and high current in a 26650 cell.

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There is a piece of paper on the connection to prevent any risk of shorts.

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There is a small difference between the two cells, but it is not huge. The cells handle up to 15A without any change in capacity, above that current the capacity goes down.

Vappower%20IMR26650%205000mAh%20(Green)-Temp-15.0.png


Vappower%20IMR26650%205000mAh%20(Green)-Temp-20.0.png


AT 20A the cells gets hot, but it is just about acceptable.

Vappower%20IMR26650%205000mAh%20(Green)-Temp-30.0.png


At 30A I terminated one of the tests due to temperature, but that was only a few seconds before the test would have stopped anyway.

Vappower%20IMR26650%205000mAh%20(Green)-CapacityTimeHours.png


Vappower%20IMR26650%205000mAh%20(Green)-CapacityTime.png


Vappower%20IMR26650%205000mAh%20(Green)-Energy.png


Vappower%20IMR26650%205000mAh%20(Green)-PowerLoadTime.png


Vappower%20IMR26650%205000mAh%20(Green)-TripCurrent.png


Vappower%20IMR26650%205000mAh%20(Green)-Charge.png




[size=+3]Conclusion[/size]

This cell is near the top in performance for high current.



[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
Compare to 18650 and other batteries
 
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