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cellphone battery charger

Discussion in 'Power Electronics' started by Phiber, Mar 2, 2013.

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  1. Phiber

    Phiber

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    Sep 14, 2012
    one question please, if I connect a voltage output from a power supply to a cellphone battery, will the battery start charging?

    thanks
     
  2. Young

    Young

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    Feb 6, 2013
    The power from the source must be exactly the voltage required to charge d phone or what ever,then am sure it will charge but d battery must stil b in d phone and it must still b connected through d charger
     
    Last edited: Mar 2, 2013
  3. BobK

    BobK

    7,682
    1,686
    Jan 5, 2010
    Don't do that, the battery could explode! A charger must control the voltage / current delivered to the battery and know when to stop. Charge your cell phone battery inside the cell phone, where the correct circuitry is there to charge it.

    Bob
     
  4. Phiber

    Phiber

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    Sep 14, 2012
    ok.. noted.. guess I cant use rechargeable batteries for my amp circuit.
    thank you very much
     
  5. Eche

    Eche

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    Mar 3, 2013
    Might I recommend u use a proper charging circuit such as the mcp73861 from microchip. I have a schematic available if needed ...make sure u use exact tolerances as you can destroy a battery or under charge it.
     
  6. Eche

    Eche

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    Mar 3, 2013
    Phiber..what is the voltage and mA on the battery?
     
  7. BobK

    BobK

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    1,686
    Jan 5, 2010
  8. CocaCola

    CocaCola

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    Apr 7, 2012
  9. davenn

    davenn Moderator

    13,598
    1,875
    Sep 5, 2009
    what rechargable batteries?
    what amp circuit ?

    you suddenly changed topic in the middle of a different discussion

    Dave
     
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