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

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


    Feb 6, 2010
    On the fence
    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


    May 16, 2008
    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

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


    May 16, 2008
    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

    Sep 27, 2010
    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

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


    Nov 22, 2010
    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


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

    Mar 31, 2011

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


    Jul 30, 2010
    North Yorkshire, UK
    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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