External monitor without being plugged in?

Discussion in 'MacBook Pro' started by traumuhhtize, Aug 20, 2013.

  1. traumuhhtize macrumors member

    Joined:
    Jul 6, 2012
    #1
    Does anybody know if it's possible to use an external monitor without having your MBP plugged in? I don't want to have my computer at 100% all of the time so that's why I'm asking and because I just find it nicer to have a bigger screen.
    Thanks.
     
  2. webworks415 macrumors 6502

    Joined:
    Dec 20, 2008
    #2
    I do this most of the time. It has to be plugged in to power if you use the MBP closed lid with an external monitor. But if you plug in an external monitor as a secondary screen and leave your MBP open, it doesn't need to be plugged in.
     
  3. traumuhhtize thread starter macrumors member

    Joined:
    Jul 6, 2012
    #3
    I guess there isn't a way around this :( I already knew about the second tip but thanks anyways.
     
  4. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #4
    With 100% you probably mean the battery? If so, take a look here to learn, that it is not that bad to use the MBP with the power adapter and that older battery technology frelled up many people's ideas about how batteries work.

    ______________________________________________________
    This should answer most, if not all, of your battery questions:
    Apple Notebook Battery FAQ by GGJstudios
    The F.A.Q. includes the following topics:
    • BATTERY INFORMATION
    • BATTERY LIFE FROM A CHARGE
    • AC POWER
    • CALIBRATION
    • BATTERY LIFESPAN
    • CHECKING STATUS AND HEALTH
    • CHARGING
    • WHAT IS A CYCLE?
    • BATTERIES ARE NOT COVERED
    • BULGING OR SWELLING BATTERY


    ______________________________________________________
     
  5. PDFierro macrumors 68040

    Joined:
    Sep 8, 2009
    #5
    Wait, you want to do this wirelessly? Not possible.
     
  6. Mr MM macrumors 65816

    Mr MM

    Joined:
    Jun 29, 2011
    #6
    with widi is actually possible, but apple doesn't support it, since their wifi cards are made by broadcom and not intel
     
  7. GSPice macrumors 68000

    GSPice

    Joined:
    Nov 24, 2008
    #7
    I think the OP was talking about battery life being at 100%. It's not an issue but as the post above said people still worry about it as if its old tech
     
  8. traumuhhtize thread starter macrumors member

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    Jul 6, 2012
    #8
    Not wirelessly, I don't mind the cables. I was talking about the magsafe being plugged in, sorry for the confusion.
     
  9. Zeov macrumors 6502a

    Zeov

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    Apr 1, 2011
    Location:
    Odense
    #9
    doesn't really matter if the power comes from the wall or the battery of the laptop... it's possible.
     
  10. traumuhhtize thread starter macrumors member

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    Jul 6, 2012
    #10
    How then? That's why I created this thread.
     
  11. PDFierro macrumors 68040

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    Sep 8, 2009
    #11
    You could connect your MBP to the monitor without the computer being plugged into the wall. But then that defeats the purpose.

    There is really no way around this. But it is not going to do damage to your battery by plugging it in and having it connected to an external monitor.
     
  12. traumuhhtize thread starter macrumors member

    Joined:
    Jul 6, 2012
    #12
    I'm connected to a tv so I don't think there's a way around this. I guess I'll have to keep it plugged in then.
     
  13. snaky69 macrumors 603

    Joined:
    Mar 14, 2008
    #13
    Keep it plugged in, you're not damaging anything.

    People's mind are still stuck in the Ni-Cad age of batteries. Li-Pol batteries can be used every which way you darn feel like using it. So long as I doesn't get excessively hot or cold, or excessively drained, it'll still die a slow death at around 800-1000 cycles, whether you kept it plugged in 100% of the time or not.
     
  14. Yahooligan macrumors 6502a

    Yahooligan

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    Aug 7, 2011
    Location:
    Illinois
    #14
    Run the "NoSleep" app/kernel extension and your MBP won't go to sleep when unplugged from power and the lid is closed, can be configured to have NoSleep enabled or disabled when plugged in, on battery, or both.

    Or am I missing something? I run NoSleep on both MBPs without issue because I don't want to lose my network connections when I close the lid and move around the office, etc. You could use this to prevent it from sleeping while plugged into the TV and the lid is closed.
     
  15. Zeov macrumors 6502a

    Zeov

    Joined:
    Apr 1, 2011
    Location:
    Odense
    #15
    The same way you would if the laptop was plugged into the wall ? Am i missing something here ?

    Or do you mean you want to power the external monitor via the internal macbook battery? .. I highhly doubt thats possible.
     
  16. traumuhhtize thread starter macrumors member

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    Jul 6, 2012
    #16
    It says on the app that it won't keep laptops awake when the lid is closed. So do you have an old version or something?

    Yes that's what I mean.
     
  17. Yahooligan macrumors 6502a

    Yahooligan

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    Aug 7, 2011
    Location:
    Illinois
    #17
    I think you may be looking at the wrong NoSleep app, it's not the one in the App store. The entire purpose of the NoSleep app I'm referring to is to keep the laptop awake with the lid closed.

    http://code.google.com/p/macosx-nosleep-extension/
     
  18. traumuhhtize thread starter macrumors member

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    Jul 6, 2012
    #18
    Thanks I'll try it out!
     

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