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Charging 12v battery

Discussion in 'Power Electronics' started by Jamiejlffellows, Nov 12, 2012.

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  1. Jamiejlffellows

    Jamiejlffellows

    2
    0
    Nov 12, 2012
    I need some help from people or a person with a better brain
    If i have a 6v 3watt dynamo what would two do would doubble the voltage and wattage or would the currant be stronger
    Or how many 6v 3watt dynamos would i need to keep a 12v battery charging
    Thanks
     
    Last edited: Nov 12, 2012
  2. CocaCola

    CocaCola

    3,635
    5
    Apr 7, 2012
    The Wattage would be doubled, and either the voltage or current would be doubled, one or the other...

    Depends on the drain of the battery....
     
  3. Jamiejlffellows

    Jamiejlffellows

    2
    0
    Nov 12, 2012
    Oh right so its more complicated than i first thought
     
  4. BobK

    BobK

    7,682
    1,688
    Jan 5, 2010
    Or how long you have to charge it.

    Bob
     
  5. duke37

    duke37

    5,364
    772
    Jan 9, 2011
    Do you have a dynamo or an alternator?

    Bicycle dynamos are in reality alternators and produce AC. A 6V AC source can be converted to 12V DC with a voltage doubler consisting of a capacitor and two diodes.
     
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