Does Your New i5 i7 Battery Life Suck? Upset and Pissed?I Have a Solution(A real one)

Discussion in 'MacBook Pro' started by rmbrown09, May 10, 2010.


What Kind Of Battery Life Does Your i5 / i7 get? (Assuming auto brightness, BT off)

  1. Around what Apple has said, 8 - 9 hours, doing medium load type of stuff

    17 vote(s)
  2. 5 - 6 medium load stuff

    41 vote(s)
  3. 4 or less, WTF

    26 vote(s)
  1. rmbrown09 macrumors 6502a


    Jan 25, 2010
    So, like many of you, I was somewhat disappointed at my battery life on the "7-8 hour" batteries.

    I was getting around 4 or less. (calculated, maybe over time it would have lasted longer)

    So I did some simple reading and found that you are supposed to completely drain your battery (once a month) and then charge it again!

    I did this and now look at me!

    no more impotent battery.



    Right now I am running a legit battery test, doing a mix of forum watching, YouTube viewing, etc (medium light stuff)

    Settings for this test
    Backlight is set to max
    Backlit keys are at max
    The 330m has not been engaged once

    I unplugged my lappy at 1:00, and am going to see what kind of life I truly get. See if maybe the calculations are just cutting it short.
    Update later

    This is my status an hour and a half later (1:00 - 2:30)

    After 2 hours now
    (1:00 - 3:00)

  2. horiveira macrumors newbie

    Mar 4, 2010
  3. Bill Gates macrumors 68020

    Bill Gates

    Jun 21, 2006
  4. rmbrown09 thread starter macrumors 6502a


    Jan 25, 2010
    though the information is very public and known to many, for many others, it is not.

    This thread is simply;

    1. Alerting those who didn't know

    2. Proving it works

    3. To Piss off Bill Gates
  5. allmIne macrumors 6502a


    Sep 17, 2008
    United Kingdom
    Hey, glad it worked for you. I've done this religiously since getting my MBP a year ago, and I can still get 7+ hours if I need to. Nothing worse than people complaining about batteries when they're not taking care of them!

    Disregard Bill Gates' response; given some of the threads around here lately, you're absolutely right in assuming many don't know about this. I'd wager it was they who were a little slow on the uptake, in that regard, if they'd somehow missed the 'zomg my battery doesn't last 8 hours' threads. ;)
  6. velocityg4 macrumors 601


    Dec 19, 2004
    That and I think a lot of people leave their brightness turned up with WiFi and Bluetooth on while using the CPU a lot.

    Conversely I think manufacturers should have to list battery life under a worse case scenario. As in CPU and GPU at max usage, WiFi and Bluetooth on, USB and Firewire powering devices to their full capability, hard drive writing, DVD drive burning a disc and screen brightness at maximum. Then they can also list moderate and light usage battery life with detailed explanations of each.

    Edit: I get the full stated time on my batteries. Though the only time I really can test it is on a plane. In which case I am playing movies with screen brightness on one bar and the movies are DVD's ripped to VideoTS folders (which I think the OS can handle with less CPU usage than heavily compressed video).
  7. JRob65a6 macrumors regular


    May 5, 2009
    If that was the case most PC computers would be rated in minutes than hours...
  8. allmIne macrumors 6502a


    Sep 17, 2008
    United Kingdom
    Why should they? A tiny percentage of users use their computers, on a regular basis, on DC power, like that.
  9. SMP 4JC macrumors newbie

    Feb 16, 2010

    i am very pleased with the results i am getting. i have the 15" i7 with the 7200 hd. i have been getting around 6 hrs on a charge and that is while running photoshop, after effects, premiere and an external usb drive. Screen brightness is one dot under full.
    this kills any PC laptop.
    WOW i love this new machine well worth the wait.
    Stop finding fault and enjoy it or take it back and buy a PC (piece of Crap) :D
  10. mdnz macrumors regular

    Apr 14, 2010
    The Netherlands
    Yeah because he has a company that manufactures laptops.
  11. paintballswimgu macrumors 6502

    Feb 13, 2010
    he uses bootcamp. That explains the slow uptake
  12. rmbrown09 thread starter macrumors 6502a


    Jan 25, 2010
    Actually it was in reference the forum member named bill gates above who for some reason doesn't like this thread.

    But cool
  13. unamused macrumors 6502

    Oct 25, 2009
    i hope you guys realize that this "technique" is not specific to macbooks, or even laptops...

    Pretty much any newer rechargeable battery powered device can be helped with this.
  14. 7thMac macrumors 6502

    May 10, 2010
    Does this deep discharge really improve battery life? I understand that it helps to "calibrate" the battery gauge, but is there a real benefit in run time?
  15. nconnella macrumors regular

    Nov 1, 2008
    I posted another thread but no one is responding. I'm guessing my battery is defective because on a full charge with brightness at 50%, keyboard light off, bluetooth off and non-flash web browsing my computer reads at about 5:15.I'm really bummed because even on idle I don't even see 8 hours. I have a battery replacement waiting at the Applestore and I'm hoping it will fix it. I was hoping someone could confirm they had the same problem and a replacement fixed it.
  16. ozreth macrumors 65816


    Nov 5, 2009
    You arent the only one, Im on my third i7 replacement and theyve all been the same. Most people around seem to be getting the same.
  17. syfuman macrumors newbie


    Apr 17, 2010
    i just unplugged. im at 6:14 remaining at 94%.

    Charge Information:
    Charge remaining (mAh): 6795
    Fully charged: Yes
    Charging: No
    Full charge capacity (mAh): 6995
    Health Information:
    Cycle count: 10
    Condition: Normal
    Battery Installed: Yes
    Amperage (mA): -1355
    Voltage (mV): 12242

    screen brightness is 4 bars below max, bluetooth off. 15" Hi Res Glossy / i7 / 7200rpm
  18. Horus macrumors regular


    Mar 5, 2009
    I get ~7 hrs, while:

    -Web Browsing with Safari + watching some videos.
    -IM with Adium
    -Playing music with iTunes.
    -Using Pixelmator, just for a while, it triggers the 330m.
    -Backlight keyboard at minimum.
    -Screen brightness at 33%.

    In conclusion, I am very happy with the Battery Life.
  19. rmbrown09 thread starter macrumors 6502a


    Jan 25, 2010
  20. MBHockey macrumors 68040


    Oct 4, 2003
    New York
    as long as i'm running the intel HD graphics card and not the nvidia 330m, i get 8-9 hours web browsing.
  21. MattMJB0188 macrumors 68000

    Dec 28, 2009
    Today I got exactly 5:35 before it went into sleep mode. I am now calibrating mine. Today watched several youtube clips. Decoded a video, browsed and ripped several cd's into itunes. Never had the display shut off automatically. Bluetooth off and screen brightness right under 50%. Hopefully I'll get a little longer now that I have calibrated it.
  22. rmbrown09 thread starter macrumors 6502a


    Jan 25, 2010
  23. RossMc macrumors 65816


    Apr 30, 2010
    Newcastle, UK
    I have just done mine for the first time since getting my MBP about 2 weeks ago and it says.

  24. SMP 4JC macrumors newbie

    Feb 16, 2010
    what app is that you have that shows the cpu stats on the top menu bar?
  25. RossMc macrumors 65816


    Apr 30, 2010
    Newcastle, UK

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