Samsung INR18650-33G 3150mAh (Blue)
Official specifications:
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Typical capacity: 3150mAh
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Minimum capacity: 3000mAh
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Charge voltage: 4.20V
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Nominal voltage: 3.60V
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Charging method: CC/CV
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Standard charge current: 975mA
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Maximum charge current: 3250mA (Not for cycle life)
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Maximum continuous discharge current: 6500mA
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Maximum pulse discharge current: 9750mA
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Discharge cut-off voltage: 2.5V
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Cycle life: 500 cycles to 75% with 975mA charge and 3250mA discharge.
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Operating temperature: charge: 0°C ~ 45°C, discharge: –20°C ~ 60°C
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Storage temperature: 1 month: –20°C ~ 60°C, 3 months: –20°C ~ 40°C, 1 year: –20°C ~ 45°C
This is a high capacity cell with limited current capabilities.
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The discharge curves matches fine, but the cell is not for high current, even 10A is over the limit, but then it is not rated for more than 6.5A
/Samsung%20INR18650-33G%203150mAh%20(Blue)-Temp-7.0.png)
/Samsung%20INR18650-33G%203150mAh%20(Blue)-Temp-10.0.png)
/Samsung%20INR18650-33G%203150mAh%20(Blue)-Temp-15.0.png)
/Samsung%20INR18650-33G%203150mAh%20(Blue)-CapacityTimeHours.png)
/Samsung%20INR18650-33G%203150mAh%20(Blue)-CapacityTime.png)
/Samsung%20INR18650-33G%203150mAh%20(Blue)-Energy.png)
/Samsung%20INR18650-33G%203150mAh%20(Blue)-PowerLoadTime.png)
/Samsung%20INR18650-33G%203150mAh%20(Blue)-TripCurrent.png)
/Samsung%20INR18650-33G%203150mAh%20(Blue)-Charge.png)
Conclusion
It is a good quality high capacity cell, but watch out for charge current.
Notes and links
Vapcell told me that I was missing some cells in my comparator and they would be happy to supply them.
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