Molicel INR18650-P28A 2800mAh (Gray)
Official specifications:
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Typical capacity 2800mAh
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Minimum capacity: 2600mAh
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Nominal voltage: 3.6V
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Standard charge current: 2.8A
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Maximum charge current: 6A
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Discharge cut-off voltage: 2.5V
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Charge cut-off voltage: 4.2V
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Maximum discharge current: 35A
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Internal resistance: 20mOhm
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Internal resistance DC: 20mOhm (10A/1s)
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Ambient temperature: Charge: 0°C ~ 60°C, Discharge: –40°C ~ 60°C
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Typical cycle life: 400 cycles to 80% at 20A discharge.
This is a high current 18650 cell with fairly good capacity.
The two cells tracks very nicely, at 30A the battery got hot and I stopped the test before the battery was empty.
Conclusion
A good high current cell and not that different from the P26A
Notes and links
The batteries was supplied by a reader 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
Graphical comparison to 18650 and other batteries
Table with all tested LiIon batteries