Previous 1 55 56 57 58 59 Next 2,643 Replies Latest reply: Dec 5, 2013 6:55 AM by Nickofari Go to original post Branched to a new discussion.
  • papalapapp Level 1 Level 1 (80 points)

    With 10.7.2 still only about 1 hour on a fully charged battery on my MB.

    Only running Safari and Mail. Can't see any unusual cpu-usage in the monitor. Something deeper down in Lion seems to be eating all the power. I don't think there will be a fix, Apple doesn't care about such problems as long as there are enough new customers lining up at the Apple Stores buying iDevices.

    (Sorry for ranting but this really makes me angry.)

  • McFunson Level 1 Level 1 (0 points)

    Poikkeus, nobody's arguing that using apps shouldn't reduce remaining battery life.

     

    The problem is that, since upgrading to Lion (or late versions of SL), the remaining life has decreased more than before.

  • rjj93 Level 1 Level 1 (0 points)

    okay guys i used lion for 2 months (on my macbook white - mid 2010.) and i thought **** it. even after installing 10.7.2, nothing changed, no battery fixes. so i reverted back to snow leopard with a fresh install, erasing everything, and  the battery life is increasing steadily. i'm still on 10.6.3. should i update it to 10.6.8? has anyone tried updating to 10.6.8? does 10.6.8 shorten the battery just like os x lion? thanks in advance to anyone who can answer. right now i have 93% battery left and its showing 10 hrs and 6mins remaining as i type. this is of course with minimum brightness and no sound but with wifi. so i think its back to the way it was. if ya'll wanna go back to SL, i would highly recommend doing a fresh install, erasing and deleting the partition and creating a new one for the new installation. good i went back to SL. not much of a difference in the interface, but a huge difference in the battery life. i get around 5-6 mins per battery life percent and thats pretty amazing.

  • Poikkeus Level 4 Level 4 (2,785 points)

    Frank_Iphone,

     

    Your measurements on the varying ways the MBP loses battery power is quite informative and impressive; I think users (and maybe in Apple staff) should be aware of the differences. But I have a different take on why some applications are power needy and others aren't.

     

    An application like MS Office has good battery life because activity is related to the slow activity (punching keys, for example), which doesn't involve much power loss. Mac Mail involves quickly retrieving or authoring documents every once in a while, and iCal doesn't involve much activity, either.

     

    However, if you author DVDs on Toast or use Safari, the activity level is considerably higher. Using Toast requires a lot of power, as the disk drives in contant motion. With Safari, you're constantly accessing information page by page, with a wealth of graphics (and heat). Flash, as an authoring application, doesn't use too much of your battery, but in webpages, the graphics really tax your MBP. Skype uses so much of your battery because the application is continually accessing the internet, constantly updating, every second it's active. Applicatons that constantly check in on the web are always going to be battery hogs.

     

    Three unsurprising culprits I've noticed are (1) web applications, like Safari and Skype, that are constantly recycling, (2) graphics applications, which are also dependent in intensive web usage. In addition, (3) burning applications like Toast command constant physical movement of the drives.

     

    McFunson,

     

    I believe we're both on the same page. We agree that the power usage in Lion is significantly higher than with SL. We agree that our options for improving battery life are limited. In my post, I just wanted to provide a context for the decline in energy across seveal Apple devices.

  • lillfredrik Level 1 Level 1 (0 points)

    I'm running 10.6.8, the attached pic shows how my battery has behaved, starting from left is when i installed lion, middle stat is 2 weeks after, to the right at top is when I reinstalled SL.

     

    So I lost 4% in 2 weeks and now I've gained 2% in 3 days.battery.png

  • lesliefromstockton-on-tees Level 1 Level 1 (25 points)

    Well, 10.7.2 installed and there is a difference.  I was getting about 2 to 2.5 hrs on a full charge, now, well it bounces around alot but so far on my first charge I am on 3 - 4 hours but still a long way from 7hrs.  Screen set to 30%, web brousing only via WiFi and a dash of email.

     

    Still some work to do Apple?

     

    Oh just dropped to 2hrs then back up to 3:44hrs... strange!

     

    Also reset PRAM after upgrade and full recharge.

     

    Will report back as the days go by.

     

    What are other people getting?

  • Franc_Iphone Level 1 Level 1 (10 points)

    polkkeus, you are right and herein lies the problem.

     

    So, I can simply reproduce one example of a battery killer app by starting twitter (with WIFI turned on or off) and minimize it. My battery goes down by about 2 hours so we know something must be happening. HOWEVER, and this is why this is all so screwed up. CPU shows 99% idle. No network traffic and no disk activity. Basically, my MAC think's it's doing NOTHING but battery life will be 2-3 hours less with TWITTER running in background. This is what leads me to believe also, the new Graphics controller is being turned on by older software and left on. That's kind of the only other battery drain. BTW - I have an SSD so no disk spinning for me!


    See my point. And of course Twitter running in background did NOT take 2 hours of the battery life on SL.

     

    COME ON APPLE. THIS IS NOW A BREEZE TO REPRODUCE.

  • Poikkeus Level 4 Level 4 (2,785 points)

    Franc_Iphone,

     

    The question comes down to this: what happened between early-to-mid SL that was so energy thrifty, and turned energy greedy with Lion? More to the point, what can a user do to improve the battery again?

     

    Reducing dependence of wifi wouldn't hurt. An increased dependence on Maglife adapters will extend the life of a charge. Increasing the size of the lithium battery is a possibility - in 2012, or supplimentation with add-on battery packs like HyperJuice. Reverting to SL will certainly improve the battery.

     

    But it's not the user's job to figure out the niceties. It's Apple's job to maintain the long life of a lithium battery to be competitive with other laptop makers. I'm not a Windowz fan, but at least they got this part of the equation right.

     

    APPLE - HOW ABOUT AN EFFICIENT POWER SOLUTION?

  • terifromwinchester Level 1 Level 1 (5 points)

    Does Apple read these posts? I am visiting the Genius bar in the morning. I am under AppleCare warranty and will press for an updated battery. I rarely get over 2 hours on a full battery. That is far less frustrating then the response time. It takes a long time to boot up and it takes several minutes for a few programs to open. It is beyond slow..... it is super slow response time.

  • terifromwinchester Level 1 Level 1 (5 points)

    That did nothing for me. I have done everyting, and I mean everything that I have read on here; well, at least all the things I could find. Nothing has changed. Battery life is still very low and response time is slower than than Christmas.

  • FastTJR Level 1 Level 1 (5 points)

    @terifromwinchester

    What apps launch at login? (you can check by looking in System Preferences > Users)

    Have you looked at Activity Monitor to see if there are any high CPU consuming processes?

    Have you run Console to see if any apps or processes are generating a lot of error messages?

  • nachomadrid Level 1 Level 1 (0 points)

    Franc_Iphone wrote:

     

    This is what leads me to believe also, the new Graphics controller is being turned on by older software and left on. That's kind of the only other battery drain.

     

    Have you tried with gfxCardStatus 2.1 in order to control for the graphic card? Could you please do the benchmarks selecting "Discrete only" and "Integrated only"?

     

    I had the same problem (2-3 hours maximum battery life) when I installed Lion from scratch. My solution (3 weeks ago) was to clean install SL, install all the updates, then upgrade to Lion installing updates to finally install everything (apps, personal stuff, etc. but from scratch even though I could have used time machine user migration in order not to restore my previous User/Library directory, just in case).

     

    I have been using my 15' MBP early 2011 with 6-7 hours battery life constantly every day without a problem using Firefox, mail, iCal with Boom, Moom, bluetooth, wifi, gfxCardStatus and smcFanControl and time machine in the background (even using Aperture for a couple of hours reduces it very little)...

     

    Maybe the SL legacy battery driver is not overwritten in the upgrade and that's why it works? (don't think so but just guessing or writing nonsense). Battery with 98% health and 65 cycles (since April 25th). I have just installed a SSD drive mantaining the HHD (user folder in the SSD except for Documents, Downloads, Movies, Music and Pictures using symlinks) and my battery life has gone up to 8-9 hours (when I just start the system, I have 10-11hrs reported).

     

    Hope you have any luck with the gfxCardStatus...

  • putnik Level 3 Level 3 (780 points)

    terifromwinchester wrote:

     

    Does Apple read these posts?

    No, this is a user forum. You should put in a bug report using this form:

     

    https://bugreport.apple.com/cgi-bin/WebObjects/RadarWeb.woa/wa/signIn

  • William Kucharski Level 6 Level 6 (14,890 points)

    The question comes down to this: what happened between early-to-mid SL that was so energy thrifty, and turned energy greedy with Lion? More to the point, what can a user do to improve the battery again?

     

    Do note your battery has been used quite a bit since then, so you wouldn't get the same battery life you did even if you went back to what you saw as the "thrifty" releases of Snow Leopard.

  • Poikkeus Level 4 Level 4 (2,785 points)

    A valid point - and that's one of the reasons why I replaced the lithium battery a little over two months ago.

     

    I'm at 21 cycles and the battery is listed as in "good" condition. But I

    still get a disappointing 3-hours-and-change before I'm down to 0% battery.

     

    I read in these pages how gfxStatus might mitigate possible issues with the graphics card, increasing battery life....but my machine is from 2009, and there's only one graphics card. Can't be used.

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