Macbook Pro said about 6 hours of battery remain and 10 mins later says 2 hours Help

Discussion in 'MacBook Pro' started by irunthistown, Apr 15, 2011.

  1. irunthistown macrumors newbie

    Joined:
    Jan 26, 2011
    #1
    Can someone explain this ? I just opened final cut and watched a couple videos on Quicktime.
     
  2. alust2013 macrumors 601

    alust2013

    Joined:
    Feb 6, 2010
    Location:
    On the fence
    #2
    It's just basing that estimation on current usage, so watching videos uses more power, and will decrease your estimation.
     
  3. GGJstudios, Apr 15, 2011
    Last edited by a moderator: Apr 16, 2011

    GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #3
    Your battery life is determined by a number of factors, including screen brightness, WiFi, Bluetooth and what you have running. This should answer most, if not all, of your battery questions:
     
  4. irunthistown thread starter macrumors newbie

    Joined:
    Jan 26, 2011
    #4
    So it can drop by 4 hours in less than 10 mins ?
     
  5. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #5
    Yes. Read the FAQ I posted. It also helps to calibrate your battery, to make sure your readings are accurate. Instructions are in that FAQ.
     
  6. superericla macrumors 6502

    Joined:
    Sep 27, 2010
    #6
    It estimates the battery life based on what you're doing. All that it is saying is that with Final Cut and those quicktime movies oven you should only expect 2 hours of battery life. The expected battery life would increase if you lowered your usage (i.e. closed quicktime or final cut).
     
  7. mark28 macrumors 68000

    Joined:
    Jan 29, 2010
    #7
    If you open up final cut pro, then it uses up more CPU and hence a bigger battery drain.
     
  8. legreve macrumors regular

    legreve

    Joined:
    Nov 22, 2010
    Location:
    Denmark
    #8
    The battery time you have read regarding 7 hours life, Is with 50% brightness or so and minimal usage... the more you have running the less battery you have and playing a movie Is one thing that really sucks battery...
     
  9. mrwonkers macrumors 6502

    mrwonkers

    Joined:
    Oct 31, 2004
    Location:
    Cyberia
    #9
    The only way to deal with this is to throw your MBP out of the nearest window.
     
  10. iMackPro macrumors 6502

    Joined:
    Mar 31, 2011
    #10
    +1.


    especially if you have the higher end 15 with the big boy GPU
     
  11. Fubar1977 macrumors 6502a

    Fubar1977

    Joined:
    Jul 30, 2010
    Location:
    North Yorkshire, UK
    #11
    Final Cut and quicktime both chew up the battery to some degree, especially FCP.
    I can comfortably get 7 hours plus out of my mid 2010 15" i5 on light useage (web browsing etc) but if I start hitting the meaty apps then that battery will plummet.
    Ripping a DVD in handbrake will reduce it from 7 hours plus to around 90 mins for example.

    Also, do follow GGJ`s guide and calibrate your battery, it won`t improve the life of the battery but you will get more accurate estimates.


    Better yet, switch to percentage instead of time remaining, you stress about it less I find...
     

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