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Thread: Test/review of Samsung INR21700-50E 5000mAh (Cyan)

  1. #1
    *Flashaholic* HKJ's Avatar
    Join Date
    Mar 2008
    Copenhagen, Denmark

    Default Test/review of Samsung INR21700-50E 5000mAh (Cyan)

    Samsung INR21700-50E 5000mAh (Cyan)

    Official specifications:
    • Standard discharge capacity: 4900mAh (0.2C discharge)
    • Rated discharge capacity: 4753mAh (1C discharge)
    • Charge voltage: 4.2V
    • Nominal voltage: 3.6V
    • Charging method: CC-CV
    • Maximum charge current: 4900mA
    • Maximum continuous discharge current: 9800mA
    • Maximum pulse discharge current: 14700mA
    • Discharge cut-off voltage: 2.5V
    • Cycle life: 500 cycles to 3802mAh (80%)
    • Operating temperature: Charge: 0C ~ 45C, discharge: -20C ~ 60C
    • Storage temperature: 1 month: -20C ~ 60C, 3 months: -20C ~ 45C, 1 year: -20C ~ 23C

    This is one of the new high capacity 21700 cells.

    The two cells are very well matches, but they do not like high current (I forget thermosensor on one of them, it survived, but must have been hot).


    This is a good quality battery and with high capacity.

    Notes and links

    The batteries was supplied by 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
    My website with battery, charger, usb reviews, comparisons & information:
    Latest addition is multimeter reviews

  2. #2
    Join Date
    Nov 2013
    Idaho, USA

    Default Re: Test/review of Samsung INR21700-50E 5000mAh (Cyan)

    Molicel has a 21700 cell rated at 5000mAh and 20A "waiting in the wings" to compete against this Samsung.

    I am a bit skeptical about Molicel's claim of 20A discharge capability. 15A with good cycle life seems more believable to me.

    Have not yet seen any independent tests of the Molicel.

  3. #3

    Default Re: Test/review of Samsung INR21700-50E 5000mAh (Cyan)

    I have a feeling this is the cell that Olight and Acebeam have used for their 21700 batteries.

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