Battery Life on MacBook Pro

Discussion in 'MacBook Pro' started by DeadPixel217, Dec 12, 2011.

  1. DeadPixel217 macrumors member

    Jul 22, 2011
    I know many many others are suffering the same problem as me when it comes to battery life on a MacBook Pro. I get a MAXIMUM of 2 hours with brightness bow, no backlight and locked to the integrated GPU. This is completely unacceptable and far short of the 7 hour promise. I'm reading forums and I get 2 hours? Is there anyway to get Apple to sort out this problem? I didn't pay several thousand pounds for a laptop that holds its charge less than my first generation netbook.
  2. simsaladimbamba

    Nov 28, 2010
    Have a look at Activity Monitor (Applications / Utilities /) and select All Processes and sort by CPU to see what the culprit may be.

    image below uses sorting by CPU as an example
    Further reading:
    Check out the section titled "BATTERY LIFE FROM A CHARGE" in the following FAQ:

    This should answer most, if not all, of your battery questions:
    Apple Notebook Battery FAQ by GGJstudios
  3. Bernard SG macrumors 65816

    Bernard SG

    Jul 3, 2010
    OP: You have two MBP's, which one are you talking about?
  4. simsaladimbamba

    Nov 28, 2010
    The OP only has one 2011 15" MBP and a 2007 MB, according to the signature. Or are you referring to something else?
  5. Bernard SG macrumors 65816

    Bernard SG

    Jul 3, 2010
    oops! I misread the MB to an MBP.

    OP do you effectively get only 2 hours battery life (forget what is being displayed) ?
    Do you have a battery utility (like coconut or iStats) to check your battery health?
  6. miniConvert macrumors 68040


    Mar 4, 2006
    Kent, UK - the 'Garden of England'.
    Mhmm, been on my late 2011 for 1h 10 so far and I've got 6h 23 remaining... keyboard backlight is on and my display brightness is a few notches up from minimum.

    In other words, as other posters are alluding to, there's something happening on your machine that's draining the battery and it certainly isn't typical for everyone. Either you've got a runaway process munching CPU cycles or your battery is duff.
  7. navseawif macrumors newbie

    Dec 2, 2011
    I saw a huge drop in battery life on my mid 2010 MBP after "upgrading" to Lion. I have since went back to Snow Leopard, but I'm still not seeing 7 hours like I was prior to the switch to Lion. I now get about 4 hours. I do play games on FB that are flash intensive. I find that when I do anything that involves Flash player, it causes the battery to drain super-fast, fans kick on, and computer heats up excessively. This was NOT the case before updating the OS to Lion.
  8. GuitarG20 macrumors 65816


    Jun 3, 2011
    if you downgraded back, then Lion shouldn't be the issue... are you sure your computer battery isn't just getting old/vents are getting clogged with dirt particles?
  9. GGJstudios macrumors Westmere


    May 16, 2008
    This is common, no matter which version of Mac OS X. Flash is notorious for being demanding on system resources. It's true in Lion, SL and Leopard.
  10. thundersteele macrumors 68030

    Oct 19, 2011
    If I don't watch flash, I get 6-7 hours with the brightness set above medium.
  11. vitzr macrumors 68030


    Jul 28, 2011
    I'm also enjoying 7+ hours with my 15" Mid 2010 MBP running 10.6.8. It's returned great battery run times since I bought it new when Apple released this model. Frankly I'd be happy with 5 or 6, I didn't expect to get such outstanding life.

    I'm so glad I decided not to take the risk that is Lion, instead leaving well enough alone.

    That said, the path I took since I was somewhat interested in trying Lion, but not at the expense of my other trouble free Macs, was to buy a new 13" 2011 MBA. I'm disappointed in the relatively short & inconsistent battery life. I can't even quote a time since it varies a lot.

    This tells me there's an inherent issue that still needs to be sorted out by Apple. I guess time will tell. At least, for me it's just a secondary laptop running an OS that I'm not fond of anyway. Perhaps as time goes by Apple will improve it.
  12. freshass macrumors newbie

    Feb 4, 2011
    just surfing the web and listening to itunes i get btween 6-8 hours depending on the lighting condition i need. this is also on an ssd.
  13. djfergi macrumors newbie

    Dec 6, 2011
    I just picked up my MBP 3 days ago. I'm getting about 6 hours or mixed use. I'm extremely happy with that seeing as though I came from a windows based laptop that would maybe get 3.5 hours or mixed use.
  14. WarpSpawn macrumors member

    May 30, 2011
    I've not actually ran the battery down fully yet on my late 2011 13" but projected time remaining tends to put it around 6-7 hours for light use and 5 ish watching videos. A Flash ad or two on a website seems to reduce that substantially though.

    ETA: Trying to use Handbrake on battery reduces it to about 1.5-2 hours. Not that I would normally use the battery for that but I was just trying to get an idea of what is likely the worst case scenario so it was either that or gaming which has a similar effect (but that wold not run the optical drive).

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