1 2 Previous Next 18 Replies Latest reply: Apr 3, 2012 8:40 PM by Alvin Martinez
pennyng Level 1 Level 1 (0 points)

i just bought my macbook pro not long ago. around 2months?

and my battery is going down really quick. 1% every 3 mins and i only have firefox on and my backlight is turn off. my brightness is turn on to the middle.

i was looking at my friends macbook. doesnt seem to be going down so quickly.

what is wrong with it?


MacBook Pro (13-inch Late 2011), Mac OS X (10.7.3)
  • 1. Re: my macbook pro battery is going down 1% every 3 mins
    TeenTitan Level 4 Level 4 (2,410 points)

    Have you looked to see what your computer is processing?

     

    If you quite firefox, and use safari instead dose the issue go away?

    What are you doing in firefox? how many windows are open?

    Have you verified all your internet plugins are update?

  • 2. Re: my macbook pro battery is going down 1% every 3 mins
    pennyng Level 1 Level 1 (0 points)

    nothing is taking over my computer process.

     

    safari does the same thing to me.

    i only have one or two tabs running. i am jus serving the web. looking at facebook and trademe etc jus normal webpages.

  • 3. Re: my macbook pro battery is going down 1% every 3 mins
    TeenTitan Level 4 Level 4 (2,410 points)

    Any streaming music, or streaming video or downloading a big file?

     

    DId you try using activity monitor to look at CPU use? if so, how much of the CPU was firefox or safari taking? Did you see any thing else taking a large perecnatage of the CPU? For instance maybe shockwave or flash.

     

    Also what are your battery stats? (apple menu, about this mac, more info button, system report button, in the left column under hardware, click on power, there should be a section labeled Battery Information.)

     

    Have you check to see what your energy saver settings are? (apple menu, system prefrences.., energy saver, battery tab.) Is put the hard disk to sleep when not in use checked?

     

    Also did you isntall Adobe Flash and or Shockwave on the computer?

  • 4. Re: my macbook pro battery is going down 1% every 3 mins
    pennyng Level 1 Level 1 (0 points)

    no i am not streaming any music or video if i do, the percentage will go down more.

     

    nope most of my stuff are at 0% and firefox is taking around 10-20%?

     

    this is my pwer info

     

    Battery Information:

     

      Model Information:

      Serial Number:    W02024A9XD3LA

      Manufacturer:    SMP

      Device Name:    bq20z451

      Pack Lot Code:    0

      PCB Lot Code:    0

      Firmware Version:    201

      Hardware Revision:    000a

      Cell Revision:    165

      Charge Information:

      Charge Remaining (mAh):    4378

      Fully Charged:    No

      Charging:    No

      Full Charge Capacity (mAh):    5187

      Health Information:

      Cycle Count:    16

      Condition:    Normal

      Battery Installed:    Yes

      Amperage (mA):    -968

      Voltage (mV):    11976

     

    System Power Settings:

     

      AC Power:

      System Sleep Timer (Minutes):    10

      Disk Sleep Timer (Minutes):    10

      Display Sleep Timer (Minutes):    10

      Wake on AC Change:    No

      Wake on Clamshell Open:    Yes

      Wake on LAN:    Yes

      Display Sleep Uses Dim:    Yes

      PrioritizeNetworkReachabilityOverSleep:    0

      RestartAfterKernelPanic:    157680000

      Standby Delay:    4200

      Standby Enabled:    0

      Battery Power:

      System Sleep Timer (Minutes):    5

      Disk Sleep Timer (Minutes):    10

      Display Sleep Timer (Minutes):    3

      Wake on AC Change:    No

      Wake on Clamshell Open:    Yes

      Current Power Source:    Yes

      Display Sleep Uses Dim:    Yes

      Reduce Brightness:    Yes

      RestartAfterKernelPanic:    157680000

      Standby Delay:    4200

      Standby Enabled:    0

     

    Hardware Configuration:

     

      UPS Installed:    No

     

    AC Charger Information:

     

      Connected:    No

      Charging:    No

     

    yahh i put my mac to slp when im not using it.

  • 5. Re: my macbook pro battery is going down 1% every 3 mins
    TeenTitan Level 4 Level 4 (2,410 points)

    The battery looks good to me. Nice max capcity.

     

    1% every 3 minutes works out to be what 5 hours?

     

    If you have installed flash on the computer, that would explain why your missing 2 hours. For instance Dump Flash, Get 2 Extra Hours of Battery Life.

     

     

    When I use firefox, I load a page it spikes to like 18-23% CPU. and then after the page loads it drops to like 1% and stays there. At least until I load another page. I also notice that when I scroll in firefox , firefox uses 100% cpu. So lots of scrolling in firefox will effect battery life.

     

    If your seeing 20% CPU when firefox is open, and your doing nothing in firefox. then 20% would seem a little high.

  • 6. Re: my macbook pro battery is going down 1% every 3 mins
    pennyng Level 1 Level 1 (0 points)

    so do u use safari?

    is safari a better internet explorer?

     

    does urs do down that quickly?

  • 7. Re: my macbook pro battery is going down 1% every 3 mins
    TeenTitan Level 4 Level 4 (2,410 points)

    yah, but I do have flash installed. If I un-install flash I get much closer to 7 hours.

  • 8. Re: my macbook pro battery is going down 1% every 3 mins
    pennyng Level 1 Level 1 (0 points)

    soo for safari

    it does have firefox problem?

     

    'When I use firefox, I load a page it spikes to like 18-23% CPU. and then after the page loads it drops to like 1% and stays there. At least until I load another page. I also notice that when I scroll in firefox , firefox uses 100% cpu. So lots of scrolling in firefox will effect battery life.

     

    If your seeing 20% CPU when firefox is open, and your doing nothing in firefox. then 20% would seem a little high. .

  • 9. Re: my macbook pro battery is going down 1% every 3 mins
    TeenTitan Level 4 Level 4 (2,410 points)

    scrolling in safari uses a noticeable amount of CPU power. Some people have reported using click2flash, or some thing like it, can help improve battery life. (assuming flash is installed)

  • 10. Re: my macbook pro battery is going down 1% every 3 mins
    pennyng Level 1 Level 1 (0 points)

    what is click2flash

     

    btw thanks alot for ur replies n etc

     

    sooo how many % is ur comp going down by????

  • 11. Re: my macbook pro battery is going down 1% every 3 mins
    TeenTitan Level 4 Level 4 (2,410 points)

    About the same as yours close to 3 minutes. If you un-instaleld flash, you'd probable get closer to 4 minutes.

     

    My experince has been that even just intstalling flash seems to reduce battery life.

     

    ClickToFlash stops flash from automatically loading on web pages. This means when you go to websites and they have say a advertisment made in flash. That advertisment will not load, unless you click on it. Witch means your computer uses less power to render and display the web page.

     

    This also means, Lets say you go to you tube, the video may not load right away. instead you have to click on the allow flash video to load button, then you can click the play button.

     

    I tried clicktoflash. It was nice, but after a while I tired of having to click allow. I chose instead to just go with the battery life I get with flash installed.

  • 12. Re: my macbook pro battery is going down 1% every 3 mins
    pennyng Level 1 Level 1 (0 points)

    i installed flashblock but my battery is still going down every 3 mins

    ):

  • 13. Re: my macbook pro battery is going down 1% every 3 mins
    Alvin Martinez Level 1 Level 1 (35 points)

    You might want to also try changing the default disk sleep setting to a lower value. By default your disk sleeps after 10 minutes. Lowering to a number like 5 minutes may save some battery life. You need to go into Terminal to make the change: Save Battery by Spinning Down Hard Drive Sooner or use a general-purpose utility software like Cocktail or Onyx to adjust the disk sleep timing.

  • 14. Re: my macbook pro battery is going down 1% every 3 mins
    pennyng Level 1 Level 1 (0 points)

    hey there thx alot for the advice

    but is there actually a problem

    with my battery? if it is going down at 1% every 3 mins? or izzit normal? mine telling me how

    fast urs is going down by when u only have firefox open n only surfing web?? if my battery is not

    nrmall then i shall go to apple store to check upp

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