Remotes have Capacitors??? | FerrariChat
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Remotes have Capacitors???

Discussion in 'General Automotive Discussion' started by UroTrash, Dec 17, 2006.

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  1. UroTrash

    UroTrash Four Time F1 World Champ
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    Jan 20, 2004
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    Clifford Gunboat
    #1 UroTrash, Dec 17, 2006
    Can a car door remote work without a battery? Do they have little capacitors that would make them work for a while with no battery?


    Or is my daughter lying about dropping the remote, putting the back back on and not realizing the battery was missing?

    My remote stopped working today, I popped it open to check the battery and it was missing. Daughter denies an incident. Very strange. Working fine yesterday for me....

    Daughter was driving my car while her Scion is awaiting an oil filler cap.
     
  2. ylshih

    ylshih Shogun Assassin
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    Mar 21, 2004
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    #2 ylshih, Dec 17, 2006
    Very unlikely. It would take a pretty big capacitor to stay charged and send out enough energy to activate the door opener. It takes milliwatts of energy to send out a radio signal versus microwatts to keep a watch or LCD going while you change the battery over. There's not much reason to spend money to have a big capacitor in a garage door remote, so it wouldn't get put in.
     
  3. CMY

    CMY F1 World Champ

    Oct 15, 2004
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    Chris
    #3 CMY, Dec 17, 2006
    Forgetting to replace oil filler cap > losing battery in garage remote
     
  4. djui5

    djui5 F1 Veteran

    Aug 9, 2006
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    Phoenix, Arizona
    #4 djui5, Dec 17, 2006
    Jeesh. You're racking up the points there bro. Stay away from the turkey deep fryer.
     
  5. UroTrash

    UroTrash Four Time F1 World Champ
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    Clifford Gunboat
    #5 UroTrash, Dec 18, 2006
    :)
     

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