battery to run ac motor without inverter

Discussion in 'OnBoard Electronics & Controls' started by alexandershudai, Oct 28, 2018.

  1. alexandershudai
    Joined: Oct 2018
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    Location: malaysia

    alexandershudai New Member

    can i connect 20 pc of 12v battery series to run a ac motor ? what is the electronic component needed ? tq
  2. BlueBell
    Joined: May 2017
    Posts: 678
    Likes: 64, Points: 28
    Location: Victoria BC Canada

    BlueBell Ahhhhh...

    Welcome to the forum.

    "can i connect 20 pc of 12v battery series to run a ac motor ?
    No you can't.

    "what is the electronic component needed ?"
    It's called an inverter... but something tells me you already knew that.
    Pammie likes this.
  3. JamesG123
    Joined: Mar 2015
    Posts: 655
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    Location: Columbus, GA

    JamesG123 Senior Member

    Depends thought. If its a "universal" motor that has an internal rectifier, a motor notionally an AC 110/120 v will happily run on DC as long as the voltage is clean and the amps are there.

    @alexandershudai you should probably ask your question on an electronics forum to get the specific detail you are asking for.
  4. Barry
    Joined: Mar 2002
    Posts: 1,086
    Likes: 63, Points: 48, Legacy Rep: 158

    Barry Senior Member

    does not appear to require an internal rectifier,

    Up until this moment I would have agreed with Bluebell saying that they are not compatible.

  5. rwatson
    Joined: Aug 2007
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    Location: Tasmania,Australia

    rwatson Senior Member

    " universal motors are usually relatively inefficient: around 30% for smaller motors and up to 70–75% for larger ones."

    "the commutator has brushes that wear, so they are much less often used for equipment that is in continuous use. In addition, partly because of the commutator, universal motors are typically very noisy, both acoustically and electromagnetically."

    Universal motor - Wikipedia
    Barry likes this.
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