HandBrake on battery power

Discussion in 'MacBook Pro' started by testerdennis, Aug 18, 2011.

  1. testerdennis macrumors member

    Joined:
    Aug 7, 2011
    #1
    1st Post, 1st Mac I have a 2011 MBP 13" i7.
    Can someone tell me if it is normal for HandBrake to eat up the battery time as quick as it seems. Full charge started HandBrake the time went down to 1 hour.

    Thanks
     
  2. Merkyworks macrumors 6502

    Joined:
    Oct 14, 2008
    #2
    yes handbrake will KILL battery time, when encoding your cpu will max out at 100% duty and that kind of kills battery time. plus you have an i7 which will use more power than the base cpu for the 13" MBP.
     
  3. testerdennis thread starter macrumors member

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    Aug 7, 2011
    #3
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    Thank you Merkyworks.
     
  4. accessoriesguy macrumors 6502a

    Joined:
    Jul 8, 2011
    #4
    yeah and if you also have a 7200RPM hard drive, you get some better performance but also lose battery life and your computer heats up more.
     
  5. snaky69 macrumors 603

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    Mar 14, 2008
    #5
    Same principle as human beings really: the more you're doing the more energy you need to do it. Handbrake maxes out all your processor cores so that it can render faster, downside of that is that it eats battery for breakfast.
     
  6. testerdennis thread starter macrumors member

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    Thank you very much everyone I was unaware that HandBrake alone would max out the processors.
     
  7. grahamnp macrumors 6502a

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    Jun 4, 2008
    #7
    Handbrake is will take all your CPU can give. I used to use it to run down the CPU when calibrating the battery. :D
     
  8. Gav2k macrumors G3

    Gav2k

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    #8
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    Op tbh tasks like handbrake will eat your battery even on the mains.
     

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