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The riddle of 3 batteries

Discussion in 'General Electronics' started by KellyClarksonTV, Jun 30, 2004.

  1. You have 3 9-volt NiCad batteries of known and uniform capacity you want to
    fully discharge, but you have no wires or other equipment, so the only way you
    can discharge them is by snapping two of them together, forming a short circuit
    of 18 volts. But you don't want to reverse charge any of the batteries. How can
    this be done?
     
  2. Julie

    Julie Guest

    Put all three in a crusher and push the big green START button. When done, you
    will have three very discharged batteries, and absolutely no reverse charge.
     
  3. I said NO OTHER EQUIPMENT!!!
     
  4. Rich Grise

    Rich Grise Guest

    Hold them securely against the genitalia.
     
  5. Robert Baer

    Robert Baer Guest

    First get some Glycerin, then some Nitric Acid; play with mixing them;
    you might get a big *BANG* out of the experiment!
     
  6. Quack

    Quack Guest


    put them to your tongue ?
     
  7. Please, this is such an easy question, can't you just come up with the straight
    answer??
     
  8. Julie

    Julie Guest

    And so _very_ important...

    Short each on the metal casing of the other, although I prefer my crusher
    solution.
     
  9. well, good one, but still need to sand the batteries to get the metal casings
    .... there's also a solution that only involves snapping the batteries together.
     
  10. Robert Baer

    Robert Baer Guest

    He was *crushed* by your answer...
     
  11. Chris Hodges

    Chris Hodges Guest

    Make a hollow in the ground with your hands, place batteries in and
    wait for rain. Or does a habitable planet count as equipment?

    Chris
     
  12. Guest


    Simply wait and let them self-discharge. The negative post on a
    9-volt is wider than the gap between the pos and neg. You could also
    use just the neg post from one battery to short the pos and neg of
    another. Of course a dead short could damage the battery


    Why do you keep posting asinine questions to this newgroup? Is
    business that slow or are that bored that you like trying to stir up
    debates over stupid things? For your own sake, please get a life.

    -Chris
     
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