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  1. #1

    Default 18350 batteries

    I've done a few searches with little turned up. How many different 18350 batteries are there, so far I find only the IMR ones at 700 mah. I've been using a few pocket lights with tubes allowing both 16340's and 18350's, one dropin is at 5.6 amps one at 3 amps and another at 2.5 amps. I would perfer the slightly larger if a little greater capacity and discharge can be had. Any help will be greatly appreciated, thank you.

  2. #2
    Flashaholic Gryffin's Avatar
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    Default Re: 18350 batteries

    I don't have the IMR ones, but I did buy several of the orange UltraFire ones a while back. While they're pretty cool in theory, in practice, not so much. Most single-CR123A-sized lights aren't bored to take 18mm cells*; and in 2xCR123A/1x18650 lights, the battery tubes are rarely long enough to handle the extra length of an additional protection circuit. If they were just 1mm shorter, they'd fit a lot more of my two-cell lights...

    (*One notable exception is the new JETBeam RRT-01, which takes 18350 quite nicely.)
    "I'm not afraid of the dark. The dark is afraid of ME!"

  3. #3
    Flashaholic*
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    Default Re: 18350 batteries

    As a Li-Co, the Ultrafire probably does have more capacity than an AW IMR cell, but does it meet its label capacity claim of 1200 mAh?

    It wouldn't matter if more capacity is the only criteria. But these are some high currents being called for. In the highest current scenario, in a single cell application - 5.6A - is roughly equal to a 5C rate (assuming the Ultrafire are have their capacity over stated some). I'm not sure I'd be comfortable holding such a light powered by an Ultrafire Lithium-cobalt cell.

  4. #4
    Flashaholic Draven451's Avatar
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    Default Re: 18350 batteries

    If you look up member HKJ he has done extensive reviews of different sized cells including 18650. I believe his website has reviews of the most recent offerings. You won't find a better resource online

    If you scan below your post in this section HKJ has several threads right now.
    "Light up the Darkness"

  5. #5
    Flashaholic*
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    Default Re: 18350 batteries

    Draven451, the OP is inquiring about 18350 cells, not 18650s. I don't think HJK has reviewed any 18350 cells.

    There are 18650 brands aplenty due to the demand from laptop makers; 18350 cells are an oddball size marketed by only a few.

  6. #6

    Default Re: 18350 batteries

    I've got the SolarForce/Surefire lego bug, lots of mix and matching. With the L2M I put together a few little pocketlights small, short run time but as bright as the larger 18650 tubes. But those 18350 cells are an uncommon animal. I've 2 Ultrafire cells and I don't think they go past 8-900 mah when measuring run time against know cells. Thanks for the response.

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