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  1. #1
    Senior Member Bat56's Avatar
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    Red face Dinotte 300R no likey the cold?

    Could just be the battery gets low and the cold pretty much kills it.

    But is it normal for the button to lose the click? I have noticed this twice.

    Today really sucked because I was out in the cold and the dark. The light was on. I shut it down for ten minutes and then it would not turn back on. The soft click that I usually feel when hitting the button was gone. It is a good thing I had some PB Superflashes and a Blackburn blinkie or else I might have gotten run over by a plow.

    It was 6 degrees F (-14 C).

    I do not know anything about this stuff, so I might be missing something obvious.

  2. #2
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    Sounds to me like the button is freezing or binding in the depressed position in the cold. Have you contacted Dinotte about the problem? If not I suggest that you do so.
    Gear Hubs Owned: Rohloff disc brake, SRAM iM9 disc brake, SRAM P5 freewheel, Sachs Torpedo 3 speed freewheel, NuVinci CVT, Shimano Alfine SG S-501, Sturmey Archer S5-2 Alloy. Other: 83 Colnago Super Record, Univega Via De Oro

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  3. #3
    Senior Member Bat56's Avatar
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    I emailed them the first time it happened but did not hear back. I figured I was nuts and they did not want to answer my stupid questions. Now that it happened again I will certainly be asking them, but I figured I'd ask here also.

  4. #4
    Fat Guy Rolling dcrowell's Avatar
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    Strange. I don't have a 300R, but I have other Dinotte lights. The battery life is usually less in bitter cold temperatures, but that's true of all batteries.

    As far the button, either moisture got in there and froze, or you have a defective light.

    Bring it in, warm it up, charge it, and try it again. If it still misbehaves Dinotte should replace it.
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  5. #5
    Senior Member Bat56's Avatar
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    When it's warm, it's back to normal. The thing with the button is odd. I cannot figure out why the click goes away.

    If someone told me about this problem, I would suggest that they could be wrong about the click. That maybe gloves or cold is messing up the sensation on the click. I have checked this many many times. Double and triple check and check again. When the click is gone, it's really gone.

  6. #6
    Senior Member Bat56's Avatar
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    I've emailed dinotte again because I've determined that this is not a battery issue. It's the switch and its the cold. After 15 minutes in the cold the switch stops switching. It's not that cold, 20 F.

  7. #7
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    If they do not answer the email try a phone call. Their phone number is listed on the web site "Contact Us" web page. I have found that companies are less inclined to think that a customer that actually phones with a technical problem is full of it.
    Gear Hubs Owned: Rohloff disc brake, SRAM iM9 disc brake, SRAM P5 freewheel, Sachs Torpedo 3 speed freewheel, NuVinci CVT, Shimano Alfine SG S-501, Sturmey Archer S5-2 Alloy. Other: 83 Colnago Super Record, Univega Via De Oro

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  8. #8
    Senior Member mechBgon's Avatar
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    I put my 300R in my freezer for about four hours, and the button seems unaffected on this one.

  9. #9
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    Quote Originally Posted by mechBgon View Post
    I put my 300R in my freezer for about four hours, and the button seems unaffected on this one.
    There ya go! (lol) What more could you ask for in testing? I'm lovin' my 300R. Don't need to, but I recharge mine after each ride. So I can't confirm or deny the claimed run times. Only complaint I have is from the folks riding behind me. And it's really not a complaint but an inquiry into the make and model of my light and where can I buy. Really enjoy being in the draft all the time. Quality light I don't mind, and have no regrets, paying a few extra bucks.

    By the way. I sent Dinotte an email a couple of months ago asking about an external battery that would plug into the usb port for additional runtime for those that need it. The idea is in the works and more info will be available during the 1st quarter of 2011.
    Last edited by 72guy; 12-01-10 at 04:03 PM. Reason: additional info

  10. #10
    Senior Member Bat56's Avatar
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    The problem is not the battery and the cold. The problem is the silicone slug that acts as the button.

    The switch on this light is a standard small push switch which is connected to the circuit board. The chunk of silicone that you push with your finger is about a half inch long and presses the switch.

    The problem is that when this silicone rubber slug button thing freezes it expands and presses the switch, and does not let off until it thaws.

    I am 100% sure of this. When I have the problem I can grab the button with my fingernails and pull the button away from the switch. Of course, this means removing two pairs of gloves.

    I think that I am going to shave a small amount of material from the bottom of the button.

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