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Thread: Minimum car battery voltage

  1. #1
    Constant Bitrate
    Join Date
    Jul 2000
    Location
    Israel
    Posts
    134

    Question Minimum car battery voltage

    Does anyboby know what is the minimum voltage of a car battery to start running the engine?
    Enjoint life!

  2. #2
    Maximum Bitrate
    Join Date
    Dec 1999
    Location
    Buena Park, CA
    Posts
    468

    Post

    The more important measurement is amperage, and it depends on the engine size. The larger the engine, the more amperage needed.
    KG6OQD
    www.americansandassociation.org

  3. #3
    Constant Bitrate
    Join Date
    Oct 1999
    Location
    CA, USA
    Posts
    118

    Post

    If you're trying to measure how much battery life is left in your battery by measuring the voltage, you can't reliably.

    The battery voltage will depend on the load placed across it. A battery can measure fine under no load (say +12V) but once you put your 300A starter across it, then you'll see that it's dead.

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