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Thread: Peak Matterhorn Li-Ion Compatibility

  1. #1
    Flashaholic jag-engr's Avatar
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    Default Peak Matterhorn Li-Ion Compatibility

    I have an HAIII Peak Matterhorn with three 5mm LEDs. On the back of the bezel there is an H stamped in the sodder, which I would assume means High Power.

    Can I run Li-Ion cells in this light, or will I fry the circuit doing that?

    Just wondering...
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  2. #2
    Flashaholic* archimedes's Avatar
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    Not recommended to run Li-Ion in the Peaks with the 5mm LEDs ....

    Pretty sure I saw a post from Curt a long time ago indicating that the driver circuit was different than that used for the models with "power-LEDs".
    Last edited by archimedes; 04-13-2012 at 01:20 PM.
    IF 2 = 1 THEN 1 = 0

  3. #3

    Default Re: Peak Matterhorn Li-Ion Compatibility

    I also believe it is not a good idea. I think I read it degrades the phosphor coating much more rapidly leaving you with a blueish beam.
    OTOH, I run a "H" single led Matterhorn head on a QTC 10180 body because it gives me my smallest light. I only use ir at low output and have not had any problems. I did try it on high output once for a few seconds and it did not seem any brighter, to me, than running the head on a AAA alky.

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    Flashaholic* archimedes's Avatar
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    Here's an interesting and relevant (if *old*) post about overdriven 5mm LEDs, from back in the "archives" ...

    http://www.candlepowerforums.com/vb/...gradation-data
    IF 2 = 1 THEN 1 = 0

  5. #5
    Flashaholic jag-engr's Avatar
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    Default Re: Peak Matterhorn Li-Ion Compatibility

    Thanks for the feedback everyone! I won't do it...

    I was considering getting a AAA light that takes Li-Ion cells, and I use the Matterhorn as a "spare battery carrier", so I was wondering if it was a good idea to drop a Li-Ion in there. I think I'll stick with Eneloops.
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  6. #6

    Default Re: Peak Matterhorn Li-Ion Compatibility

    Thank you archimedes, I enjoyed and learned something reading it.

  7. #7
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    Default Re: Peak Matterhorn Li-Ion Compatibility

    Curt once advised me not to use a Li-Ion in a Matty, although I have singles. I'm not sure about the multis.
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