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Thread: Testing new Panasonic 18500 2000mAh cells

  1. #1
    *Flashaholic*
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    Default Testing new Panasonic 18500 2000mAh cells

    I got several and the first observation is that they are a bit thicker than others cells, none would fit into my MD3 body. Not even if you pushed them in.
    This may be a problem with the MD3 body however because they would into MD4. And probably MD2.

    I spent half an hour boring my MD3 to accept them. I think they are larger possibly due to the fact the capacity is larger but primarily due to the way they are wrapped, the PCB is added and a layer of wrapping on top of whatever was underneath. I don't have any non-protected Panny 2000mAh cells to compare to.

    They came at about 3.5V so I am charging them to give them a test drive tonight.
    ****** Malkoff Devices ****** “Learn to light a candle in the darkest moments of someone’s life. Be the light that helps others see; it is what gives life its deepest significance.” ― Roy T. Bennett, The Light in the Heart

  2. #2

    Default Re: Testing new Panasonic 18500 2000mAh cells

    Do you mean these?

    https://www.orbtronic.com/18500-batt...sonic-flat-top

    They are an older cell now, good to 3-4 amps readily.

  3. #3
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    Default Re: Testing new Panasonic 18500 2000mAh cells

    ****** Malkoff Devices ****** “Learn to light a candle in the darkest moments of someone’s life. Be the light that helps others see; it is what gives life its deepest significance.” ― Roy T. Bennett, The Light in the Heart

  4. #4
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    Default Re: Testing new Panasonic 18500 2000mAh cells

    thus far I am impressed. They work as described. One hour of regulated runtime in the MD3 Malkoff Hound Dog.

    I did have to bore the body with sandpaper for 30 minutes as the MD3 body I had would not fit them. Unlike other cells. Now they fit great and tight.
    ****** Malkoff Devices ****** “Learn to light a candle in the darkest moments of someone’s life. Be the light that helps others see; it is what gives life its deepest significance.” ― Roy T. Bennett, The Light in the Heart

  5. #5
    Administrator Kestrel's Avatar
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    Default Re: Testing new Panasonic 18500 2000mAh cells

    That is very interesting; I have a SF C3 that had been overbored slightly, and had retired its ancient 1500mAh AW's a few yrs ago, as they were only at ~20% capacity. It's been an empty host for a while now, but these cells sound like decent candidates ...

  6. #6
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    Default Re: Testing new Panasonic 18500 2000mAh cells

    These are the definitive 18500 cells to get. I still run ancient AW cells in both sizes, and they slowly tick along in a skeptical manner. Turns out I only have 8x18500 decent batteries at this point and about that many obsolete AW cells. contrasting that with a million 18650s I have.

    And with the auction's site 15% off just for today I scored some "GA" the 3500mAh Panny's, the unprotected version that I prefer in single 18650 lights such as the trusted Hound Dog 18650. The red cell.
    ****** Malkoff Devices ****** “Learn to light a candle in the darkest moments of someone’s life. Be the light that helps others see; it is what gives life its deepest significance.” ― Roy T. Bennett, The Light in the Heart

  7. #7
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    Default Re: Testing new Panasonic 18500 2000mAh cells

    to make one thing perfectly clear, I think Malkoff made the right decision with this (apparently) earlier bodies a bit on the tight side . This way, if you run older, smaller cells, 3000mAh and stuff, they fit fine. The latest-greatest does not. 3500mAh especially the protected variant. So you can bore it out. It just means get some sandpaper in the size of 200 grit or so +/-, wrap around a thick pen or something equivalent and spend 20 minutes polishing the insides of the MD3/MD4 body. You only have to take off a minimal amount. I took off just enough where the cells go in and out but are still pretty tight. He provides a great body and the user can customize it as he sees fit depending on which generation of cells he uses.
    Apparently the last generation of MD bodies is a bit looser. I have one MD4 body I had to do nothing to it, everything fits. The other MD4, hardly anything did.

    We have many who prefer latest-greatest and I would not be surprised if some still ran the older 2900mAh or 3100mAh Panasonics. They are essentially just as capable but the price is great on them.
    ****** Malkoff Devices ****** “Learn to light a candle in the darkest moments of someone’s life. Be the light that helps others see; it is what gives life its deepest significance.” ― Roy T. Bennett, The Light in the Heart

  8. #8
    Administrator Kestrel's Avatar
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    Default Re: Testing new Panasonic 18500 2000mAh cells

    My apologies, but reading the description at the Orbtronic site, these are unprotected yes ? ("Unprotected Bare Cell")
    A PCB was mentioned in post #1 so forgive me for the uncertainty.

    Edit: I still have that M91N which requires 2xLiIon, so my C3 is still a useful platform.
    Last edited by Kestrel; 08-10-2018 at 01:23 PM.

  9. #9
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    Default Re: Testing new Panasonic 18500 2000mAh cells

    That's not Orbtronic brand as can be seen in the photo.

    Yes these cells have a protective circuit on top of it as indicated in the OP. (PCB). I should have taken a better pic of the PCB to make that abundantly clear.

    This is the highest quality 18500 you can get right now. Based on the runtime charts, it has 2/3 of the runtime of the 18650 cell. (Well, 2x18500 versus 2x18650).


    Initially I run the MD3 Hound Dog then switched the MD3 body to the M61T.
    Last edited by etc; 08-10-2018 at 01:31 PM.
    ****** Malkoff Devices ****** “Learn to light a candle in the darkest moments of someone’s life. Be the light that helps others see; it is what gives life its deepest significance.” ― Roy T. Bennett, The Light in the Heart

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