Test/review of Enercig 18650 3450mAh (Purple)

[size=+3]Enercig 18650 3450mAh (Purple)[/size]



Official specifications:

• Rated capacity: 3300mAh at 20°C
• Minimum capacity: 3350mAh at 25°C
• Typical capacity: 3450mAh at 25°C
• Nominal voltage: 3.6V
• Discharging end voltage: 2.5V
• Charge current (Std.): 1.675A
• Charging voltate: 4.20V +/-0.03V
• Continuous discharge current (Max.): 10A
• Internal impedance: <38mOhm at 1kHz
• Weight: <49.5g
• Cycle life: 300 cycles to 70% (Measured at 0.5C charge and 1C discharge)
• Operating temperature: Charge: 10 ~ 45°C, Discharge: -20 ~ 60°C
• Storage temperature: Less than 1 month: -20 ~ 50°C, less than 3 months: -20 ~ 40°C, less than 1 year: -20 ~ 20°C

This is a high capacity cell.











The discharge curves tracks perfectly. The battery can handle 10A, but gets too warm at 15A.





The cell will be warm when drawing high current.



At 15A it gets way to hot and I stop the test.















[size=+3]Conclusion[/size]

A very good cell, that can handle some current (But it is not a high current cell).



[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
Compare to 18650 and other batteries

Thanks! Is there a way to use your comparison tool to compare the Discharge Energy (Wh) plots, or is it only able to work with the mAh Capacity plots?

StandardBattery said:

Thanks! Is there a way to use your comparison tool to compare the Discharge Energy (Wh) plots, or is it only able to work with the mAh Capacity plots?

Click to expand...

Comparing Wh is quite intuitive from the mAh discharge curves. Because it's just the function of current and voltage, just compare the area below the voltage curve.

StandardBattery said:

Thanks! Is there a way to use your comparison tool to compare the Discharge Energy (Wh) plots, or is it only able to work with the mAh Capacity plots?

Click to expand...

Only mAh, I have never generated a set Wh curves to compare.

Excellent review. HKJ! :thumbsup:

The 5A discharge curve looks very good.

Any opinion on who manufactures this cell? I'm wondering of it's just the latest formula for the GA or something really new.

OEM brand cell will be cheaper anyway....

CuriousOne said:

OEM brand cell will be cheaper anyway....

Click to expand...

That is not of concern or interest in this case.