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Thread: Test/review of Molicel INR21700-P42A 4200mAh (Gray)

  1. #1
    HKJ's Avatar
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    Default Test/review of Molicel INR21700-P42A 4200mAh (Gray)

    Molicel INR21700-P42A 4200mAh (Gray)



    Official specifications:
    • Rated typical capacity: 4200mAh
    • Rated minimum capacity: 4000mAh
    • Nominal voltage: 3.6V
    • Standard charge current: 4.2A
    • Maximum charge current: 8.4A
    • End of charge voltage: 4.20V +/-0.05V
    • Continuous discharge current: 45A (Cycle life is reduced at high rates)
    • End of discharge voltage: 2.5V
    • Typical impedance: <15mOhm AC 1kHz
    • Cycle life: 500 cycles at 4.2A charge and 10A discharge for 80%
    • Operating temperature: Charging: -20C ~ 60C, Discharging: -40C ~ 60C
    • Storage temperature: <35C, recommended <35C for long term.




    This is a 21700 high current cell with good capacity.










    The two cells match just about perfect and capacity do not really change with load.





    I forgot the temperature sensor with the first battery.















    Conclusion

    This is good high current cells.



    Notes and links

    The batteries was supplied by N-Power Energy 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
    Graphical comparison to 26650 and other batteries
    Table with all tested LiIon batteries
    Last edited by HKJ; 02-22-2019 at 10:51 AM.
    My website with battery, charger, usb reviews, comparisons & information: https://lygte-info.dk/
    Latest addition is multimeter reviews

  2. #2
    Flashaholic* id30209's Avatar
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    Default Re: Test/review of Molicel INR21700-P42A 4200mAh (Gray)

    So 20700/21700 are picking up pace with much larger 26650... I was sceptic at first when i saw this format but now.... Thx for the review! Do you have any info where can it be purchased? EU area

  3. #3
    HKJ's Avatar
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    Default Re: Test/review of Molicel INR21700-P42A 4200mAh (Gray)

    Quote Originally Posted by id30209 View Post
    Do you have any info where can it be purchased? EU area
    No, I got it directly from the distributor and I doubt he handles small orders.
    My website with battery, charger, usb reviews, comparisons & information: https://lygte-info.dk/
    Latest addition is multimeter reviews

  4. #4
    Flashaholic*
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    Default Re: Test/review of Molicel INR21700-P42A 4200mAh (Gray)

    A worthy competitor to the Samsung 40T. It has greater initial voltage drop than the 40T, but has higher capacity and less voltage drop at the end of the discharge curve

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