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12 volt battery connections

Discussion in 'Electronic Basics' started by Brett Cummins, Aug 23, 2004.

  1. Hey!
    I'm 14 and I'm trying to power a small neon light that requires a
    12 volts of electricity (usually for a car)with a 12 volt battery . I
    have an old rechargable battery from a toy car that I had when I was
    little. I removed the battery, and I realized that there is a four pin
    connecter with four wires leading from it. There are only two wires
    going to the neon tube, so how do I do this? Do I only need to use two
    of the wires, or do I need to connect the two positive wires together
    and the two negative wires to form the two necessary connections?
    Thank you!
     
  2. Hi,
    Get your hands on a Voltmeter, or ask your dad for one. Then find out if
    your battery gives out still 12 V or more. You do this by connecting one of
    de negative leads with the com of the meter and the positive with the
    positive from the meter do this for all 4 combinations (naturaly) ... By
    this time you will have found out if you need to use all four leads from the
    battry or not..... and if the battery is any good .

    ps sorry for any typo's I normaly speak Dutch
     
  3. Hi,

    Hey!
    Thank's for the response! I actually have a voltmeter, because
    I'm into model railroading. I wired it like you said and set the
    meter's dial to 20 DC volts. I get a reading of about 2.80. For a 12
    volt battery, I'm assuming that it should read 12. Is the battery
    almost dead, or am I reading this wrong? Thanks again!
     
  4. Rich Grise

    Rich Grise Guest

    You could have potentially up to 6 readings. Label the leads, say,
    A, B, C, and D. You can put the meter across AB, AC, AD, BC, BD, or CD,
    and will have to observe polarity while doing it.

    ixTell us those se readings, and it will tell us a lot more about
    the battery.

    Cheers!
    Rich
     
  5. I expect that a rechargeable battery 8 - 10 years old will be useless
    after all these years. It will certainly be almost fully discharged
    by now, and probably won't hold a charge if you try to recharge it.




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