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Live (brown) = positive - right?

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  • 18-01-2015 2:15pm
    #1
    BraveDonut
    Registered Users Posts: 1,056 ✭✭✭


    Repairing a charger for a golf-trolley battery.
    I know that it is important to reconnect the terminals the right way around.
    So, wanted to check that the live (brown) should be connected to the positive and not the blue.
    Appreciate the help.

    Thanks


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    #2
    BraveDonut
    Registered Users Posts: 1,056 ✭✭✭BraveDonut


    I think I got it


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    #3
    coylemj
    Registered Users Posts: 25,458 ✭✭✭✭coylemj


    Are we talking about the wires providing juice to the charger from the mains - or from the charger to the battery?

    If it's the mains feed to the charger, that's an AC connection so it's brown for live and blue for neutral - positive and negative don't apply.


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    #4
    Risteard81
    Registered Users Posts: 2,567 ✭✭✭Risteard81


    Positive and negative are for a DC circuit and phase and neutral are for an AC circuit, so your question doesn't really make any sense.


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    #5
    BraveDonut
    Registered Users Posts: 1,056 ✭✭✭BraveDonut


    To try to make more sense -

    The connector on the left in the picture had been pulled off and I wanted to reconnect it. You can see that it has a positive and a negative terminal.
    The wires from the transformer were brown and blue (live and neutral).
    I just wanted to double-check that I should connect the live to the positive.


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    #6
    Risteard81
    Registered Users Posts: 2,567 ✭✭✭Risteard81


    BraveDonut wrote: »
    I just wanted to double-check that I should connect the live to the positive.

    My point is that you must connect the positive to the positive and the negative to the negative, and certainly not phase or neutral to either so I am still confused by your question.


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    #7
    BraveDonut
    Registered Users Posts: 1,056 ✭✭✭BraveDonut


    Where it connects to the battery, one terminal is the positive, the other is the negative. Which one do I connect the live to and which one do I connect the neutral to.


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    #8
    Risteard81
    Registered Users Posts: 2,567 ✭✭✭Risteard81


    BraveDonut wrote: »
    Where it connects to the battery, one terminal is the positive, the other is the negative. Which one do I connect the live to and which one do I connect the neutral to.

    None of them. You do not connect the AC side to the DC side.


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    #9
    BraveDonut
    Registered Users Posts: 1,056 ✭✭✭BraveDonut


    Where it connects to the battery, one terminal is the positive, the other is the negative. Which one do I connect the live to and which one do I connect the neutral to.


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    #10
    BraveDonut
    Registered Users Posts: 1,056 ✭✭✭BraveDonut


    The transformer is not shown in the picture


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    #11
    Cerco
    Registered Users Posts: 2,039 ✭✭✭Cerco


    Forget about using terms like positive ( phase) and neutral when dealing with batteries which are DC devices. The proper terms are positive and negative.
    Connect positive to positive and negative to negative.


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    #12
    Bruthal
    Closed Accounts Posts: 13,422 ✭✭✭✭Bruthal


    BraveDonut wrote: »
    Where it connects to the battery, one terminal is the positive, the other is the negative. Which one do I connect the live to and which one do I connect the neutral to.

    Your question is not all that clear.

    It is likely the brown is positive, blue negative.

    There will be no live and neutral connected to the battery or the battery lead.

    The end that connects to the battery will only connect one way.

    Put up a photo of the charger showing its connections.


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    #13
    [Deleted User]
    Posts: 5,238 ✭✭✭ [Deleted User]


    Phase to battery positive = hydrogen bomb.


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