Olight - R50        
Results 1 to 4 of 4

Thread: Test/Review of LG 18650 HE4 2500mAh (Yellow)

  1. #1
    HKJ's Avatar
    Join Date
    Mar 2008
    Location
    Copenhagen, Denmark
    Posts
    8,806

    Default Test/Review of LG 18650 HE4 2500mAh (Yellow)

    LG 18650 HE4 2500mAh (Yellow)



    Official specifications:
    • Nominal Capacity: 2,500 mAh
    • Nominal Voltage: 3.6V
    • Standard Charge: 1250mA, cut off: 50mA
    • Fast charge: 4000mA, cut off: 100mA
    • Max. Charge Voltage: 4.2 +/-0.05 volt
    • Max. Charge Current: 4000mA
    • Standard Discharge: 500mA
    • Fast Discharge: 10000mA, 20000mA
    • End voltage: 2.5 volt
    • Weight Max.: 47.0 g
    • Operating Temperature: Charge 0 ~ 50C, Discharge -20 ~ 75C
    • Storage Temperature: 1 month -20 ~ 60C, 3 month -20 ~ 45C, 1 year -20 ~ 20C




    This is one of LG's high current and high capacity cell.
    This cell can be discharged down to 2.5 volt, because I stop at 2.8 volt I will not get the full capacity.











    Fairly good tracking and good at handling high currents.















    Conclusion

    This battery is one of the very good high current and high capacity battery types.



    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
    Compare to 18650 and other batteries
    My website with battery, charger, usb reviews, comparisons & information: lygte-info.
    Latest addition is multimeter reviews

  2. #2
    Flashaholic
    Join Date
    Oct 2014
    Location
    New Hope, MN
    Posts
    375

    Default Re: Test/Review of LG 18650 HE4 2500mAh (Yellow)

    Does the lower 2.5v min voltage gain an thing practical over a battery that is designed with a 2.8 minumum voltage? That is, does it possible indicate a more durable cathode design?

  3. #3
    HKJ's Avatar
    Join Date
    Mar 2008
    Location
    Copenhagen, Denmark
    Posts
    8,806

    Default Re: Test/Review of LG 18650 HE4 2500mAh (Yellow)

    Quote Originally Posted by gofastman View Post
    Does the lower 2.5v min voltage gain an thing practical over a battery that is designed with a 2.8 minumum voltage? That is, does it possible indicate a more durable cathode design?
    When using unprotected cells with leds it gives you a better safety margin. Even at low power it is difficult to over discharge a 2.5 volt battery in a light without a boost driver.
    My website with battery, charger, usb reviews, comparisons & information: lygte-info.
    Latest addition is multimeter reviews

  4. #4
    Flashaholic* candle lamp's Avatar
    Join Date
    Jun 2010
    Location
    South Korea
    Posts
    1,575

    Default Re: Test/Review of LG 18650 HE4 2500mAh (Yellow)

    Thanks for your excellent review. HKJ!

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •