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Battery drains fast on Mountain Lion compared to Lion?

19276 Views 69 Replies Latest reply: May 24, 2013 2:27 AM by spjuver555 RSS Branched to a new discussion.
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Sushant Calculating status...
Currently Being Moderated
Jul 30, 2012 8:39 AM

Hi,

 

I purchased a new MBP 13 two weeks ago and it had Lion installed on it. I was getting atleast 6 hours of battery life on Lion. I intalled Mountain Lion two days ago, and I can see my battery drain very fast. I get max of 3 hours or less on ML now. I don't use any extensive load applications yet, just Safari, mail, messages. I used these same ones before too.

 

Anyone else having battery drain issues after upgrading to Mountain Lion? I am wondering if I should go back to Lion or wait till Apple releases an update to this problem. I know the iPhone 4S had a similar issue and a new update solved the battery problem. Hoping there is something similar to this on MBP. I am not even sure if Apple knows about this problem. I love ML, just need this battery problem solved.

 

Thanks.

MacBook Pro, OS X Mountain Lion
  • Amanda_ML Calculating status...

    I am having the same issue too, though I have the previous generation macbook pro.  My battery drains a ton when I close my macbook and it never used to with OSx Lion.

  • softwater Level 5 Level 5 (5,370 points)

    Try resestting the PRAM and SMC and see if that helps.

  • bill 517 Calculating status...

    yes, my macbook air does the same thing, real fast, like 20% in 20 mins of low power usage, i had to re-install lion. apple said it seems to be a bug, and recomended that i do a full erase and re-install, but that had the same result.

  • KevinMHarper Calculating status...

    I'm having the same issue. My battery was draining a few minutes ago even while plugged in, and I have been getting random crashes every 5 to 20 minutes. Right now the battery charger is barely breaking even. It went from 70% to 24% in just a few minutes earlier today.

     

    Here are the facts:

     

    • Late 2008 Macbook Aluminum
    • 2 Ghz Intel Core 2 Duo
    • 4 GB 1333 MHz DDR3 RAM
    • Was running 10.6.8 until today.
    • Had some performance issues with EyeTV losing signal, and their tech support recommended upgrading to Mountain Lion. Since this is an extra Mac dedicated only to recording the Olympics, I thought this would be safe.
    • "Up"graded to Mountain Lion today and have had system crashes ever since. It's been a nightmare.

     

    Per a couple of different forum posts, I tried resetting PRAM, deleting apple.finder.plist, and resetting SMC. Still getting crashes.

     

    Any thoughts?

     

    Message was edited by: KevinMHarper

  • etresoft Level 7 Level 7 (23,895 points)

    KevinMHarper wrote:

     

    My battery was draining a few minutes ago even while plugged in

    That sounds like a hardware issue.

  • KevinMHarper Level 1 Level 1 (0 points)

    etresoft wrote:

     

    That sounds like a hardware issue.

     

    If it's a hardware issue, then Mountain Lion caused it. It was working fine before ML.

  • etresoft Level 7 Level 7 (23,895 points)

    Mountain Lion will allow a batter to get to 95% before charging back up to 100% to minimize wear and tear on the battery. If your system is doing anything different, it has a hardwre problem.

  • KevinMHarper Level 1 Level 1 (0 points)

    etresoft wrote:

     

    Mountain Lion will allow a batter to get to 95% before charging back up to 100% to minimize wear and tear on the battery. If your system is doing anything different, it has a hardwre problem.

     

    Look, I'm not wanting to argue, I just need advice. If you read my post, the crashing and fast battery draining was clearly brought on by Mountain Lion. And the battery draining issue was happening nowhwere near the 95% mark, it went from 70% to 25% in just a few minutes IMMEDIATELY after installing ML. Never had that issue before, then it crashed to the white screen of death about a dozen times in the last 6 hours since installing ML.

  • bill 517 Level 1 Level 1 (0 points)

    If it were a hardware issue, then there would have been some evidence of the issue prior to installing an upgrade to an OS. Hardware issues don't just appear after installing software. The facts are that the batt works fine on lion, and fails to maintain charge or report correctly after software install, and furthermore, after I reinstalled lion the issue went away. If you can see the cause and affect, then it is obvious that the OS is the issue. Now all we need to do is to get apple to come up with a fix.

  • LeafsMac Level 1 Level 1 (20 points)

    This is a widely reported issue if you do some Googling.  I'm not seeing anything strange with my early 2008 MBPro with a removable battery.  Even if it is an issue, like usual, Apple won't own up to it publicly.  Lion apparently had similar issues which disappeared after an update.  Cross your fingers.

  • etresoft Level 7 Level 7 (23,895 points)

    KevinMHarper wrote:

     

    Look, I'm not wanting to argue, I just need advice. If you read my post, the crashing and fast battery draining was clearly brought on by Mountain Lion. And the battery draining issue was happening nowhwere near the 95% mark, it went from 70% to 25% in just a few minutes IMMEDIATELY after installing ML. Never had that issue before, then it crashed to the white screen of death about a dozen times in the last 6 hours since installing ML.

    While your machine was plugged in? I can assure you that is not a feature of Mountain Lion - that is a hardware problem.

  • Norbert Dentressangle Level 1 Level 1 (0 points)

    etresoft,

     

    I wouldn't be so **** sure if I were you. Take alook around and you'll see that suddenly loads of ML upgraders have your 'hardware' issue simultaneously appear out of the blue.

     

    Coincidence, do I hear?.

  • etresoft Level 7 Level 7 (23,895 points)

    Norbert Dentressangle wrote:

     

    I wouldn't be so **** sure if I were you. Take alook around and you'll see that suddenly loads of ML upgraders have your 'hardware' issue simultaneously appear out of the blue.

     

    Coincidence, do I hear?.

    Coincidence indeed. Funny how these issues always crop up whenever a new operating system gets released. People refuse to accept they have something wrong and hope that some magical "bug fix" will repair their systems. All it does is make things worse. A battery draining while plugged in is a hardware issue.

  • al_b Level 1 Level 1 (0 points)

    Battery drains faster on ML on a MBP 13” - 3 hours at best I can tell that after 4 days from upgrade from SL. And it overheats... even when not charging is notably hotter then before. Neither do I think is a coincidence. A friend with almost an identical machine shouts similar complains - upgrading from Lion. It`s a real issue and obviously it`s software. Google search it to find the proof.

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