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Westinghouse 2000mAh 18650 Bench Test Results...only a 7A battery

Discussion in 'Batteries and Chargers' started by Mooch, May 22, 2017.

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  1. Mooch

    Mooch Electron Wrangler Verified Member ECF Veteran

    Supporting member
    May 13, 2015
    To prevent any confusion with the eGo-type "batteries", I use the term "cell" here to refer to a single 18350, 18650, 20700/21700, 26650, etc.

    While the test results are hard data, the conclusions and recommendations I make based on these tests are only my personal opinion based on my criteria for setting a rating. Carefully research any cell you are considering using before purchasing.

    Testing cells at their limits is dangerous and should never, ever, be attempted by anyone who has not thoroughly studied the dangers involved and how to minimize them.

    If the cell has only one current rating number on it, or if it says "max" then I have to assume that the company is stating that the cell can be discharged at that current level in any way, including continuously.

    IMG_5431.JPG IMG_5432.JPG IMG_5433.JPG IMG_5434.JPG IMG_5435.JPG


    Bottom Line
    This Westinghouse is a 7A cell that does not match any Samsung, Sony, LG, or Panasonic/Sanyo cell I have seen. While many of us were pretty sure that it had a low current rating I was still receiving quite a few inquiries about it.

    I am rating this Westinghouse at 7A and 2000mAh. Its maximum vaping amps (MVA) rating is 15A, limited by extreme voltage sag.

    To avoid a lot of voltage sag I recommend not going over 4A/15W but this a low capacity, low power cell and just isn't a good choice for vaping.

    The two cells that were tested were purchased by me from Walmart.


    Continuous-Current Test Results
    IMG_5438.PNG


    Pulse-Current Test Results
    IMG_5440.PNG IMG_5439.PNG


    Always Remember
    ⁃ There is no 18650 with a factory/manufacturer rating over 30A continuous.
    - There is no 3000mAh 18650 that can have a rating over 20A continuous.
    ⁃ There is no 3100mAh-3600mAh 18650 that can have a rating over 10A continuous.
    ⁃ There is no 18650 available to vapers that has a capacity rating over 3600mAh.


    Comments
    • At 5A continuous this cell delivered about 1736mAh. This is about average performance for a high internal resistance 2000mAh rated cell so I am rating it at 2000mAh.
    To see how other cells have tested and how hard you can safely push them, check out these links: List of Battery Tests | E-Cigarette Forum
     
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  2. sonicbomb

    sonicbomb Vaping Master Verified Member ECF Veteran

    Feb 17, 2015
    1187 Hunterwasser
    Not a great vaping battery then. On the upside you got to hang out in Walmart :)
     
    • Like Like x 1
  3. Mooch

    Mooch Electron Wrangler Verified Member ECF Veteran

    Supporting member
    May 13, 2015
    Mail order :)
     
    • Like Like x 1
  4. sonicbomb

    sonicbomb Vaping Master Verified Member ECF Veteran

    Feb 17, 2015
    1187 Hunterwasser
    What a wasted opportunity. Oh, and Westinghouse, Easter Bunny westing something something blah.
     
  5. Rossum

    Rossum Squonk Mod Junkie Verified Member ECF Veteran

    Supporting member
    Dec 14, 2013
    SE PA
    I expect these are intended for solar powered landscape lighting and such, where the draw is fractions of an amp.
     
  6. Mooch

    Mooch Electron Wrangler Verified Member ECF Veteran

    Supporting member
    May 13, 2015
    Yup :)
     
  7. r77r7r

    r77r7r ECF Guru ECF Veteran

    Feb 15, 2011
    Pa,LandOfTaxes
    First Chinese batteries that I've seen. Funny, coming from a Japanese company in a country that makes otherwise awesome batteries.
     
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