Test/Review of EnerPower 18500 1700mAh (Gray) BT 2015

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Test/Review of EnerPower 18500 1700mAh (Gray) BT 2015
EnerPower 18500 1700mAh (Gray) BT 2015

DSC_9087

Official specifications:
  • Typical capacity: 1700mAh
  • Minimum capacity: 1600mAh
  • Nonimal voltage: 3.7V
  • Internal impedance: Energy: 6.29Wh
  • Charging method: Constant current with limited voltage.
  • Standard charge: 4.20V, 340mA, 51mA cut-off, 25°C
  • Quick Charging: 4.20V, 1190mA, 17mA cut-off, 25°C
  • Charging Voltage: Max.4.25V
  • Standard Discharging: 340mA (0.2C) (constant current, 3.0V cut-off,25°C)
  • Max. Pulse Discharge Current: Discharge Cut-off Voltage: 3.0V
  • Battery Weight: 41g or less
  • Operating standard discharging: -20 to 60°C, 45 to 85%RH
  • Operating quick discharging: 10 to 45°C, 45 to 85%RH
  • Storage 1 week: -20 to 50°C, 45 to 85%RH
  • Storage 1 month: -20 to 45°C, 45 to 85%RH
  • Storage 6 months: -20 to 40°C, 45 to 85%RH
  • Storage 1 year: -20 to 35°C, 45 to 85%RH
  • Shelf life: 1 year (Typical value from ship state)

EnerPower%2018500%201700mAh%20(Gray)%20BT%202015-info

This is a low power protected 18500 battery, but with fairly good capacity.

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EnerPower%2018500%201700mAh%20(Gray)%20BT%202015-Capacity

The battery does fine up to 2A, but above that the cells do not behave the same and above 3A it starts loosing capacity. I cannot really complain about it, the battery is only rated for 1.7A.

EnerPower%2018500%201700mAh%20(Gray)%20BT%202015-CapacityTimeHours

EnerPower%2018500%201700mAh%20(Gray)%20BT%202015-CapacityTime

EnerPower%2018500%201700mAh%20(Gray)%20BT%202015-Energy

EnerPower%2018500%201700mAh%20(Gray)%20BT%202015-PowerLoadTime

EnerPower%2018500%201700mAh%20(Gray)%20BT%202015-TripCurrent

EnerPower%2018500%201700mAh%20(Gray)%20BT%202015-Charge



Conclusion

This battery is not for high current applications, but works fairly well when current is within specifications. Being protected it can also be used in series.



Notes and links

The batteries was supplied by ENERDan 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
Compare to 18650 and other batteries

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