Test/review of Samsung INR18650-35E 3500mAh (Pink) 2

Batteries and Chargers Rechargeable Batteries
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Test of Samsung INR18650-35E 3500mAh (Pink) 2

Samsung INR18650-35E 3500mAh (Pink) 2







Official specifications:

  • Nominal capacity: 3500mAh

  • Minimum capacity: 3350mAh

  • Nominal voltage: 3,6V - 3,7V

  • Charging voltage: 4,2V

  • Discharge current: 8A

  • Maximum discharge current: 13A

  • Charge current: 0,6C 2000mA

  • Discharge end voltage: 2,65V

  • Pluspol: FlatTop

  • Chemistry: LiNiCoAlO2

  • Diameter: 18,55mm ± 0,1

  • Height: 65,25mm ± 0,15

  • Weight: 48g ± 1




This is a fairly new 35E cell (Supposed to be 2020) from Samsung. It is a high capacity cell.








The two cells tracks fairly well, the cell can handle the rated 8A.























Conclusion

This is a good cell, but performance is lower than the one I tested some years ago (This may be because this cell was produced some time ago).



Notes and links

The batteries was supplied by reader for 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
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Interesting, thanks for the review. Not sure if this is a genuine Samsung cell or its lower performance is due to aging, or simply lower grade.

To my experience and measurements, this “35E3” performs better than the old/regular 35E in some aspects: (1) lower AC 1kHz IR, usually 20~21mohm; (2) higher voltage during discharge, especially when the current is higher than 5A. Although this “35E3” may give slightly lower capacity, but the difference is usually negligible. My measurements with 1A discharge down to 2.5V on some units I bought are all higher than 3400mAh.

The “35E3” I got is as good as the trusted Panasonic/Sanyo NCR18650GA, and it even gives higher burst current/brightness (with FET-driven Turbo, of course) due to lower IR. However it’s still officially rated as 8A while NCR18650GA is officially rated as 10A.