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Ultracapacitor LED Flashlight Charges In 90 Seconds

Iddo Genuth writes "The California based company 5.11 Tactical has recently introduced a new innovative flashlight — 'Light For Life' UC3.400. Unlike regular flashlights requiring constant battery changing this new LED torch offers a rechargeable battery that can be recharged in as little as 90 seconds using ultracapacitor technology. Various military and rescue units might benefit from this new development, ensuring them a light source at all times."

13 of 131 comments (clear)

  1. 90 seconds! by hansamurai · · Score: 5, Funny

    ensuring them a light source at all times.

    Except those 90 seconds.

    In which you will be eaten by a grue.

    1. Re:90 seconds! by click2005 · · Score: 4, Funny

      Yeah and it'll be like every PC FPS with a flash light (HL2/F.E.A.R etc) where it lasts 30 seconds at a time.

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      I am a free slashdotter. I will not be modded, blogged, DRM'd, patented, podcasted or RFID'd. My life is my own.
    2. Re:90 seconds! by hedwards · · Score: 2, Funny

      That's actually a myth, the flashlight in Doom 3 is actually grue powered.

    3. Re:90 seconds! by orasio · · Score: 2, Funny

      You know slashdot is not what it used to be, when the explanation for the joke is Score:5, Insightful, and the actual joke is Score:2

  2. May I be the first to say... by ben0207 · · Score: 1, Funny

    What a bright idea.

    --
    cmd-q.co.uk - some sort of stupid fucking internet bullshit
    1. Re:May I be the first to say... by SleptThroughClass · · Score: 2, Funny

      Brilliant! -- GENERATION 667: The first time you see this, copy it into your sig on any forum and add 1 to the generation.

  3. Patents by tepples · · Score: 2, Funny

    These two technologies are not mutually exclusive.

    Except perhaps if their respective patent holders refuse to cross-license to each other.

  4. Re:Better be a mighty fine flashlight for $170 by Anonymous Coward · · Score: 1, Funny

    how quickly does it self-discharge?

    TFA says that it provides light for up to 90 minutes. But it uses a capacitor to store charge, so I imagine it could discharge very rapidly under the wrong conditions.

    I think you are shorting him on the shocking details of ultra capacitor discharge.

  5. Re:Hmm... by Anonymous+Monkey · · Score: 5, Funny

    None for me, thanks. I'm driving.

    --
    We are the Borg...
  6. Re:Limited usefull information. by Anonymous Coward · · Score: 2, Funny

    But you have to look at the big picture.

    Lets say during an average 3-hour shopping experience, you may look at 15 items, and impulsively buy 2 items. Each impulsive buy brings you 10 mG* of fun.

    2 * 10mG = 20mG / 3 hrs = 6.66 mG / hour of fun (roughly)

    Guessing from your slashdot ID, you're fairly young, probably just past being teenage (again, very roughly.) Based on your age, looking at items that you might buy, but not actually buying them should give you about 5 mG of fun per hour.

    6.66 mG + 5 mG = 11.66 mG per hour of fun.

    B5 Geek shopping with you would admittedly remove much chance of you impulsively buying any items, but there's still the remote possibility of you buying one (say, for example, while he goes to the bathroom, or gets distracted counting ceiling tiles)

    We'll say that there's roughly a 20% chance of impulsively buying an item with him around.

    6.66 mG * 20% = 1.33mG of fun per hour from buying items

    But the joy gained by admiring the disgusted looks from the many females you'd be passing in the mall, and the sighs of boredom from the retail clerks while B5 explains to them the features of the products they're selling combined would provide at LEAST 10 mG of fun per hour.

    10mG + 1.33 mG = 11.33 mG per hour of fun.

    So you see, while shopping with B5 Geek, you would really only be losing roughly 0.33 mG of fun per hour.

    Combined with the fact that you could probably convince him to buy you lunch (He's probably lonely enough to pay just for your company) shopping with him might not be so bad after all.

    *mG = milliGrin

  7. Comment removed by account_deleted · · Score: 3, Funny

    Comment removed based on user account deletion

  8. Re:Hmm... by Java+Pimp · · Score: 4, Funny

    I was gonna mod this as Funny cause I almost spit out my Pepsi when I read this. Then I saw someone modded it Informative...

    Then I did spit out my Pepsi.

    --
    Ascalante: Your bride is over 3,000 years old.
    Kull: She told me she was 19!
  9. Re:Better be a mighty fine flashlight for $170 by onkelonkel · · Score: 3, Funny

    One of my favorite old detective stories described a cop's 6 cell mag lite like this "except for the fact that it lit up when you pressed a button, it would not have been out of place at the battle of Agincourt"

    --
    None of them can see the clouds; The polished wings don't care.