Test/review of Enercig EC-14500HP 650mA (Gray)

HKJ

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[size=+3]Enercig EC-14500HP 650mA (Gray)[/size]

DSC_4855.jpg


Official specifications:
  • Typical capacity: 670mAh
  • Minimum capacity: 650mAh
  • Nominal voltage: 3.7V
  • Standard charge: 130mA (0.2C)
  • Standard discharge: 130mA (0.2C)
  • End-of-charge voltage: 4.20v+/-0.05V
  • End-of-discharge voltage: 3.00V
  • Quick charge current: 650mA (1C)
  • Quick discharge current: 6500mA (10C)
  • Max. discharge current: 13000mA (20C)
  • Cycle life: 300 times at 0.5C to 80%
  • Initial impedance: max 30mOhm
  • Operating temperature: Charging: 0° ~ 45°C, discharging: -20°C ~ 60°C
  • Storage temperature: -5°C ~ 35°C

Enercig%20EC-14500HP%20650mA%20(Gray)-info.png


This is a high current AA sized LiIon cell.

DSC_4848.jpg


DSC_4856.jpg
DSC_4857.jpg


DSC_4858.jpg

DSC_4859.jpg


Enercig%20EC-14500HP%20650mA%20(Gray)-Capacity.png


The discharge curves tracks fairly good and the battery works fine up to 10A, but 15A is too high.

Enercig%20EC-14500HP%20650mA%20(Gray)-Temp-7.0.png


Enercig%20EC-14500HP%20650mA%20(Gray)-Temp-10.0.png


Enercig%20EC-14500HP%20650mA%20(Gray)-CapacityTimeHours.png


Enercig%20EC-14500HP%20650mA%20(Gray)-CapacityTime.png


Enercig%20EC-14500HP%20650mA%20(Gray)-Energy.png


Enercig%20EC-14500HP%20650mA%20(Gray)-PowerLoadTime.png


Enercig%20EC-14500HP%20650mA%20(Gray)-TripCurrent.png


Enercig%20EC-14500HP%20650mA%20(Gray)-Charge.png




[size=+3]Conclusion[/size]

These batteries has very good performance at high current, this also means that the capacity is a bit lower than low current cells.



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

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
Comparison to other LiIon batteries
 

turboBB

Flashlight Enthusiast
Joined
Jan 16, 2008
Messages
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Location
NJ, USA
Thx for the test Henrik! I'm on the hunt for some quality 14500 IMR's and these look pretty good but can't seem to find them on sale anywhere. Any chance you know if any vendor's stock this in the US?
 

HKJ

Flashaholic
Joined
Mar 26, 2008
Messages
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Location
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Enerdan is a German company, this means they mostly sell in Europe.
The cells might exist in US with another name on them, but I do very seldom get cells from US dealers/brands for review any more.
 

turboBB

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Jan 16, 2008
Messages
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Location
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Thx Henrik and again truly appreciate this absolute gem of a resource! As time allows is there any chance you can program in filters? Maybe a few check boxes so one can filter on just IMR's or by particular size (14500 only, etc). The small cell comparator list is still reasonably manageable but your 18650 list is gargantuan. ^_^;; Maybe once the filters are in place, you can then compile the comparators into a single one thus making it easier to manage? Happy to contribute to PayPal to help with the dev work.

@MAD777 - I ended up going with the Windyfire IMR as that was closest to this cell.
 

turboBB

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Joined
Jan 16, 2008
Messages
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Location
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Yup, totally understandable. Thanks again for your time and contributions.

Cheers,
Tim
 

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