Test/Review of Efest IMR18490 1100mAh (Red)

HKJ

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[size=+3]Efest IMR18490 1100mAh (Red)[/size]

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Official specifications:
  • Nominal Voltage: 3.7v
  • Battery Model: 18490 Capacity: 1100mAh
  • Positive: Nipple Top
  • Cycle Life:500 Cycles
  • Weight: 45g
  • Dimensions: 48.89mm (L) x 18.19mm (D)

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The battery is a slightly short verions of a 18500 battery and because it is IMR it does not have protection.

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The rating of 1100mAh does fit very nicely with the measurements and the battery does also handle a 5A discharge current fine.

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My test is discharging the battery and it cannot continue to deliver full current.

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[size=+3]Conclusion[/size]

This cell works well at the currents I have tested.
At the current time I can only rate them acceptable, because Efest is a new company, and the batteries is not from one of the big brands.


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

The batteries was supplied by Efest 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
 
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