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

HKJ · 12.01.2020, 18:52

Samsung INR18650-25R 2500mAh (Cyan) Ebay

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)

What do you get when buying a Samsung INR18650-25R on Ebay?

The two cells match fin, but capacity is lower than rated value.

Conclusion

The battery has less capacity and can deliver less current than a real Samsung INR18650-25R, 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

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12.01.2020, 18:52	1
HKJ Модератор своих разделов Регистрация: 03.07.2010 Последняя активность: 10.10.2022 08:53 Адрес: Copenhagen, Denmark Сообщений: 1652 Сказал(а) спасибо: 0 Поблагодарили: 2982 раз(а) в 1024 сообщениях	Test/review of Samsung INR18650-25R 2500mAh (Cyan) Ebay Samsung INR18650-25R 2500mAh (Cyan) Ebay 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) What do you get when buying a Samsung INR18650-25R on Ebay? The two cells match fin, but capacity is lower than rated value. Conclusion The battery has less capacity and can deliver less current than a real Samsung INR18650-25R, 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 charges, batteries and other stuff: http://www.lygte-info.dk/