Test/review of Samsung INR18650-25R 2500mAh (Cyan) Ebay

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HKJ
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Test/review of Samsung INR18650-25R 2500mAh (Cyan) Ebay

Samsung INR18650-25R 2500mAh (Cyan) Ebay
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Official specifications:


  • Style: Flat Top
  • Chemistry: INR
  • Nominal capacity: 2500 mAh (2200 mAh)
  • Max Continuous Rated Discharge: 20A (at 25 degrees Celsius)
  • Max Pulse Current (Less than one Second Pulse): 50A
  • Dimensions: 65.0 ± 0.2 mm (L) x 18.3 ± 0.2 mm (D)
  • Weight: 45g (Max)
  • Discharge Cut-off Voltage: 2.5V
  • Nominal voltage: 3.7V
  • Full Charge Voltage: 4.2V ± 0.05V
  • Cycle info: Capacity drops to 60% after 250 full charge/discharge Cycles
  • Standard Charge: CC/CV at 1A / 4.20V ± 0.05V, 100mA Cut-off
  • (Max) Rapid Charge: CC/CV at 4A / 4.20V ± 0.05V, 100mA Cut-off
  • Operational Charging Temperature Range: 0 to 50 degrees Celsius (Best below 45 degrees Celsius)
  • Operational Discharging Temperature Range: -20 to 75 degrees Celsius (best below 60 degrees Celsius)
  • You can store them for 1.5 years at -30 to 25 degrees Celsius, 3 months at 30 to 45 degrees Celsius and 1 month at 30 to 60 degrees Celsius (in other words, store them in a cool place and they’ll last longer)

Samsung%20INR18650-25R%202500mAh%20(Cyan)%20Ebay-info
What do you get when buying a Samsung INR18650-25R on Ebay?
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DSC_9622 DSC_9623
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DSC_9625
Samsung%20INR18650-25R%202500mAh%20(Cyan)%20Ebay-Capacity
The two cells match fin, but capacity is lower than rated value.
Samsung%20INR18650-25R%202500mAh%20(Cyan)%20Ebay-Temp-10.0
Samsung%20INR18650-25R%202500mAh%20(Cyan)%20Ebay-Temp-15.0
Samsung%20INR18650-25R%202500mAh%20(Cyan)%20Ebay-Temp-20.0
Samsung%20INR18650-25R%202500mAh%20(Cyan)%20Ebay-CapacityTimeHours
Samsung%20INR18650-25R%202500mAh%20(Cyan)%20Ebay-CapacityTime
Samsung%20INR18650-25R%202500mAh%20(Cyan)%20Ebay-Energy
Samsung%20INR18650-25R%202500mAh%20(Cyan)%20Ebay-PowerLoadTime
Samsung%20INR18650-25R%202500mAh%20(Cyan)%20Ebay-TripCurrent
Samsung%20INR18650-25R%202500mAh%20(Cyan)%20Ebay-Charge
Samsung25RCyan-Pulse-1A-10-10-2.5V-IR
Conclusion
The battery has less capacity and can deliver less current than a real Samsung INR18650-25, but is not as such a bad cell.
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
Graphical comparison to 18650 and other batteries
Table with all tested LiIon batteries

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

Superstocker
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Thanks HKJ!

HydrAxx
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It’s a fake sh*t battery, just to look at the positive pole.

Can a single flapping of a butterfly's wings trigger a tornado at the other end of the world?

HKJ
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HydrAxx wrote:
It’s a fake sh*t battery, just to look at the positive pole.

Yes, it is a fake Samsung, but a real battery and much much better than one of these:

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

RobinVC
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Location: Belgium
Quote:
It’s a fake sh*t battery, just to look at the positive pole.

no shit sherlock