Aspire ICR18650 2500mAh (Black-yellow)
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Official specifications:
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Capacity: 2500mAh
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Flat top to suit most Mods
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Continuous discharge 20 A
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Pulsed discharge 40 A
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Nominal Voltage 3.7V
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High current batteries from ebay.
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The discharge curves looks good, the cells tracks and have nearly constant capacity up to 20A. At 30A the cell has trouble.
THey get warm at 20A, but not too warm.
The battery gets very hot at 30A, I recorded 91°C
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Conclusion
These batteries has good performance.
Notes and links
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