11 Replies Latest reply: Nov 21, 2012 1:51 PM by vladitto
florinsm Level 1 Level 1 (0 points)

With Lion OS battery drains faster, max 2h instead of 5-7h with Snow Leopard. Any ideas why, and how could I fix this issue? Also system seems to run slower. Thank you


MacBook Pro, Mac OS X (10.7.2)
  • 1. Re: battery life with Lion
    Linc Davis Level 10 Level 10 (118,305 points)
  • 2. Re: battery life with Lion
    Jimmy Kats Level 1 Level 1 (10 points)

    have you seen any improvments since upgrading to lion?

  • 3. Re: battery life with Lion
    florinsm Level 1 Level 1 (0 points)

    Hi Jim. Battery problem solved after reinstalation of Lion.

     

    On the other hand Mac's performance dropped. Start up time for ex increased a lot, and the Mac is slower. I regret I upgraded to Lion. For sure I won't upgrade to Mountain Lion.

  • 4. Re: battery life with Lion
    Jimmy Kats Level 1 Level 1 (10 points)

    is your hard drive the standard one that came with the mac or have you upgraded to an SSD?

  • 5. Re: battery life with Lion
    florinsm Level 1 Level 1 (0 points)

    Standard hard drive

  • 6. Re: battery life with Lion
    petermac87 Level 5 Level 5 (4,205 points)

    florinsm wrote:

     

    Hi Jim. Battery problem solved after reinstalation of Lion.

     

    On the other hand Mac's performance dropped. Start up time for ex increased a lot, and the Mac is slower. I regret I upgraded to Lion. For sure I won't upgrade to Mountain Lion.

    Been reported by some. Some also claim improvement with Mountain Lion. Most do not have any issues. I have 5 Macs 4 of which are MBPs and none have a battery or performance issue. Read the post that Linc put up and you may find something that will address your issue.

     

    Cheers

     

    Pete

  • 7. Re: battery life with Lion
    Didier92 Level 1 Level 1 (5 points)

    Hello,

     

    If you use Time Machine you can disable local backup which is a new feature of Lion. (Time Machine use the free space of your had drive, and if needed (run out of free space) removes the backup. IMHO, this fonctionality eat a lot of power for a poor usage (for me, this is totally useless). To disable it open a terminal and type: sudo tmutil disablelocal. TimeMachine will stop to run continously and Spotlight will have less files to index. You should have a gain of 30% battery life. And keep in mind:

     

    - Snow Leopard Kernel was running in 32bits (x86) mode on MB(P). If you force 64 bits in SL, battery life will drain faster  than in 32bits. Core 2 Duo are not optimized as Core iX for 64 bits instructions set. Lion and Montain Lion are 64 bits OS and Kernel is running in 64 bits mode.

     

    - There was a lots of optimizations for new gen GPU but not compatible with olders. A simple webpage 'scrolling' eat more power with a nvidia 9400M than with a Intel integrated GPU.

     

    - Battery indicator formula has changed and is more accurate.

     

    Finally, don't forget to perform PRAM/SMC reset and adjust screen brightness and keyboard light. This will 'calibrate' the light sensor. You will need to do it multiple times ( depending on the ambiant light) then it should stabilize and auto-adjustement will work as it worked under SL.

     

     

    In conclusion:

    Disable local TM Backups

    Don't use too much Mission Controls and spaces (fullscreens apps). Yes it's funny, but eat power. You can disable 'Dashboard as space' in mission control prefpane.

    Use an adblocker to avoid Adobe Flash advertisments. (Flash Player is a nightmare for battery life).

    Reset PRAM and SMC.

     

    Hope this help,

    Regards.

  • 8. Re: battery life with Lion
    Jimmy Kats Level 1 Level 1 (10 points)

    if you ever get the chance and are technically advanced with hardware upgrades... upgrade the standard hard drive in the macbook with an SSD, preferably one made by Corsair... and you will love your macbook pro, and all the speed it will have!!

  • 9. Re: battery life with Lion
    petermac87 Level 5 Level 5 (4,205 points)

    Jimmy Kats wrote:

     

    if you ever get the chance and are technically advanced with hardware upgrades... upgrade the standard hard drive in the macbook with an SSD, preferably one made by Corsair... and you will love your macbook pro, and all the speed it will have!!

    And this increases Battery Life?

     

    Pete

  • 10. Re: battery life with Lion
    Jimmy Kats Level 1 Level 1 (10 points)

    i apologize for the late responses.. faster read/write speeds should be the ultimate decision maker for the SSD but yes better battery life.. SSD's don't consume the amount of power that standard hard drives do

  • 11. Re: battery life with Lion
    vladitto Level 1 Level 1 (0 points)

    ACTUALLY, the computer is supposed to take a nap during the battery test - otherwise it's not fair.

     

    So after 3 hours, put it to sleep for 3 hours while continuing to count. Then continue with the monitor off. Thus, you arrive at the 'up to 7 hours' number.

     

    If still not 7 hours - then it must be FLASH PLAYER's fault.