Battery question again.. Kind of?

Discussion in 'Mac Basics and Help' started by Peter Franks, Dec 21, 2011.

  1. Peter Franks macrumors 65816

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    #1
    Not another battery question, Well kind of.

    Is it normal for a fully charged MBP battery to use it's whole power just copying 1 disc which takes around 45 to 48 minutes or so. I would usually do that plugged in, I know, but just wondered if it happens with all you guys. I probably should ask this in the MBP forum, but I'm guessing it's common?

    The big users for me are flash, QT and any disc playing, DVD. But...... copying 1 x 45 minute dub on to a DVD is a 100% battery killer.
     
  2. GGJstudios macrumors Westmere

    GGJstudios

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    May 16, 2008
    #2
    It varies, depending on what other processes are running, what system settings you have, and what your battery's type and condition is. Read the BATTERY LIFE FROM A CHARGE section of the following link. This should answer most, if not all, of your battery questions:
     
  3. Peter Franks thread starter macrumors 65816

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    #3
    Yeh, thanks. Battery has never been great, 7 months old, but just thought odd that one burn can drain it. I 'quit' safari, email etc and everything in dock when I do it, but it still drains
     
  4. GGJstudios macrumors Westmere

    GGJstudios

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    #4
    Launch Activity Monitor and change "My Processes" at the top to "All Processes". Then look to see what may be consuming system resources.
     
  5. Peter Franks thread starter macrumors 65816

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    #5
    kernel_task and Safari at around 260MB+ main highest ones. Real Mem.
    What is the '0' in the PID column, it's the only one with a '0' by it?

    Or is it CPU that makes the difference, most between 0 to 7 for something like windows server
     
  6. GGJstudios macrumors Westmere

    GGJstudios

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    #6
    Sort in descending order by CPU. Post a screen shot.
     
  7. Peter Franks, Dec 21, 2011
    Last edited: Mar 3, 2012

    Peter Franks thread starter macrumors 65816

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    #7
    Wouldn''t keep still!!!
    Gives you rough idea... but they keep coming and going. What order are they normally in before I clicked CPU in the column descending, because they were static then. Weird


    Was I supposed to click bottom one too in the list?
     
  8. GGJstudios macrumors Westmere

    GGJstudios

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    #8
    You can click the CPU column header again, to switch between ascending and descending. Yes, the ranking will constantly change, as different processes use more or less CPU.
     
  9. Peter Franks thread starter macrumors 65816

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    #9
    Oh was it on CPU to start with, thought it might have been kind or process name because there was hardly any movement before I clicked it, What is that kernel task or is it irrelevant. Guessing there's nothing there that can affect a lousy battery life
     
  10. GGJstudios macrumors Westmere

    GGJstudios

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    #10
    Kernel task is your Mac operating system.
     
  11. Peter Franks thread starter macrumors 65816

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  12. Peter Franks thread starter macrumors 65816

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    #12
    is there any obvious sign when the MBP shuts off at 4% instead of going down to 1% that the battery is now even worse than it used to be?
     
  13. GGJstudios macrumors Westmere

    GGJstudios

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    #13
    No. Again, I encourage you to read the Battery FAQ which I posted.

     
  14. Peter Franks thread starter macrumors 65816

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    #14
    Fair do, it's just the first time it's happened like that since I've had it.
    Don't suppose you'd know why the one step movie is taking longer than normal do you, for films of the same length. Up to 30 or so mins more than usual. The performance/high/best etc. is not changeable in one step is it? It does it for you I presume?
     
  15. GGJstudios macrumors Westmere

    GGJstudios

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    #15
    I don't understand what you just said. What are you talking about?
     
  16. Peter Franks thread starter macrumors 65816

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    #16
    When burning a 1 hour 30 minute film to DVD it now takes longer than it used to. Is it because RW discs take longer to burn than normal +R discs.
     
  17. GGJstudios macrumors Westmere

    GGJstudios

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    #17
    I haven't got a clue. It may have to do with whatever settings you have selected in the app you're using to burn.
     
  18. Peter Franks thread starter macrumors 65816

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    #18
    Did anyone read anything from this as to why I've got such a lousy battery life, and now a dead charging extension lead as from today!...
     

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