nicjoy 18650 2600mAh (Green-brown)
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Official specifications:
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Battery Capacity (FastTech Tested): 2600 mAh
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Battery Capacity (Mfg Rated): 2600 mAh
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Battery Chemistry: INR - LiNiCoMnO2
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Battery Feature: Rechargeable
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Battery Form Factor: INR 18650
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Battery Maximum Voltage: 4.2±0.05 V
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Battery Minimum Voltage: 2.75 V
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Battery Rated Voltage: 3.7 V
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Max. discharge current: 5.2A
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Continuous discharge current: 1.3A
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This is a 2600mAh 18650 battery from a rewrapper.
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The discharge curves look good with close tracking and nearly constant capacity. The cell get too hot at 15A, not surprising with a cell rated for around 5A.
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The cell got to hot and I terminated the test.
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Conclusion
The battery has acceptable performance, but it is a fairly low capacity cell with fairly low maximum current.
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