Thinking about taking my MacBook pro to Apple...

Discussion in 'MacBook Pro' started by iphone305, Sep 18, 2011.

  1. iphone305 macrumors member

    Joined:
    Mar 19, 2011
    #1
    My 2011 13' MacBook Pro is only giving me about 4 hours of battery. All i do is surf the internet (really no flash) and listen to music. The battery decreases about 15% on sleep overnight. So if i take it to Apple what will their response be? Will they fix it or send me home? I've already done the calibrate.
     
  2. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #2
    Your battery life from a charge is determined by many factors. Also, it's normal to use about 1% of battery power for every hour of sleep. It's also possible your Mac didn't stay in sleep mode the whole time. This should answer most, if not all, of your battery questions:
     
  3. GGJstudios macrumors Westmere

    GGJstudios

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    May 16, 2008
    #4
  4. GuitarG20 macrumors 65816

    GuitarG20

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    Jun 3, 2011
    #5
    couldn't the pram not properly working in sleep cause the problem the OP is posting about losing a lot of battery while the computer is asleep?
     
  5. GGJstudios, Sep 18, 2011
    Last edited: Sep 18, 2011

    GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #6
    No, NVRAM and RAM are two different things, and neither will affect the Mac's ability to enter or stay in sleep mode.

     
  6. yusukeaoki macrumors 68030

    yusukeaoki

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    Mar 22, 2011
    Location:
    Tokyo, Japan
    #7
    Is the time just given from the indicator or does it actually run for only 4 hrs?
     
  7. iphone305 thread starter macrumors member

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    Mar 19, 2011
    #8
    it actually runs for 4 hours.
     
  8. rockyroad55 macrumors 601

    rockyroad55

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    Jul 14, 2010
    Location:
    Phila, PA
    #9
    That's odd. Calibrating might not work since that only helps the counter. I'd say bring it in to Apple, it's a free diagnosis anyway.
     
  9. Badrottie Suspended

    Badrottie

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    May 8, 2011
    Location:
    Los Angeles
    #10
    my one year old battery only give me 4 hours...thinking about getting a new battery?
     
  10. iphone305 thread starter macrumors member

    Joined:
    Mar 19, 2011
    #11
    Taking my MacBook Pro to Apple on sunday. Any idea what their response will be?
     
  11. GuitarG20 macrumors 65816

    GuitarG20

    Joined:
    Jun 3, 2011
    #12
    did you use iStat or CoconutBattery to tell you your battery health?
     
  12. iphone305 thread starter macrumors member

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    Mar 19, 2011
    #13
    92%
     
  13. iphone305 thread starter macrumors member

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    Mar 19, 2011
  14. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #15
    If your health is 92%, it's doubtful there's anything wrong with your battery. Did you read the Battery FAQ I posted, which describes factors related to battery life from a charge?
     
  15. GuitarG20 macrumors 65816

    GuitarG20

    Joined:
    Jun 3, 2011
    #16
    how many cycles?
     
  16. iphone305 thread starter macrumors member

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    Mar 19, 2011
    #17
    Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_3 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8J2 Safari/6533.18.5)

    105
     
  17. Badrottie Suspended

    Badrottie

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    May 8, 2011
    Location:
    Los Angeles
    #18
    it can't be right…..am I lucky? this is only one year old battery???

    Screen shot 2011-09-24 at 8.26.08 PM.png
     
  18. GuitarG20 macrumors 65816

    GuitarG20

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    Jun 3, 2011
    #19
    my battery has 100% health and close to 100 cycles...
     
  19. Badrottie Suspended

    Badrottie

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    May 8, 2011
    Location:
    Los Angeles
    #20
    something is wrong with istat...I dunno.
     
  20. GuitarG20 macrumors 65816

    GuitarG20

    Joined:
    Jun 3, 2011
    #21
    nope. coconut just confirmed it. i guess i just have an awesome battery :p
     
  21. alust2013 macrumors 601

    alust2013

    Joined:
    Feb 6, 2010
    Location:
    On the fence
    #22
    If you're talking about the computer in your sig, 4 hours is great. They were advertized to last 5, but that never really happened.
     
  22. Badrottie Suspended

    Badrottie

    Joined:
    May 8, 2011
    Location:
    Los Angeles
    #23
    Are you talking about real fruit coconut? :) I am talking about my battery with istats.

    ----------

    that is good to know but 372 cycles with perfectly 100% health is not making any sense.
     
  23. GuitarG20 macrumors 65816

    GuitarG20

    Joined:
    Jun 3, 2011
    #24


    OH YOU. I'm gonna assume that you actually know that i'm using coconutbattery and not mashing a coconut into my computer keyboard (while yelling RAWR, no less)
     
  24. Wattser93 macrumors regular

    Joined:
    Sep 6, 2010
    #25
    I own a 2010 MBP and do what I can to maximize battery life. I have a 7200RPM HDD, so I'm sure it's hurting battery life some, but the performance boost is worth it for me.

    I used to get about 5 hours of battery life, with JUST internet browsing. Going from Chrome to Safari increased battery life 2 hours, going to click to flash and adblock, another hour. I went from 5 hours of light browsing, to 8 hours of light browsing, by simply changing my browser to Safari and getting rid of the background ads and flash that were sucking up the CPU power.

    Now I'm getting 8 hours or more of browsing with just Safari and Outlook open, with Outlook being run in the background.

    Just out of curiosity, I unplugged my MBP and used it for about 5 minutes without the charger so the battery timer would stabilize. It estimated 9 hours of battery life remaining. I then opened iTunes and started playing some music through the internal speakers with volume at about 25%. My battery timer went from 9 hours remaining, to 5:30 remaining. iTunes put about an 8-10% load on the CPU just playing music in the background.

    Unfortunately the huge battery life numbers Apple posts are over inflated for marketing. I've got about 12 hours on a charge doing strictly word processing with bluetooth and airport off. Otherwise, I've never made it to the 10 hour claim while using Safari, Excel, or anything else. 9 hours is about the best I can get while doing anything other than word processing.
     

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