Yosemite battery drain & overheating!

Discussion in 'OS X Yosemite (10.10)' started by Magster2, Oct 21, 2014.

  1. Magster2 macrumors newbie

    Oct 21, 2014
    Hi Guys

    I installed Yosemite on Sunday and it turned out that the battery was drained in under 2h! I had nothing running on it, then watched a movie that was 1,5h long, it had 70% battery left when I started the movie and battery drained in under 1h! Also, there is that overheating problem that I never had on Mavericks.
    I have 11-inch, Early 2014 MacBook Air, Memory: 4 GB 1600 MHz DDR3, Processor : 1.4 GHz Intel Core i5. Got it couple of months ago and upgrade to Yosemite is the first problem I've had since I got it.

    Downgraded to Mavericks today... :(
  2. newellj macrumors 603

    Oct 15, 2014
    Boston, MA, US
    My late 2013 rMBP 13" ran on the hot side and used a lot of power for the first day or so after the upgrade to Yosemite. After about a day, it cooled down and calmed down and is actually running cooler than it was with Mavericks, and battery life is back to normal.

    It is possible that there was a lot of indexing and other background activity going on right after the Yosemite installation.
  3. thewap macrumors demi-god


    Jun 19, 2012
    After install reset smc, then reset pram (let the mac reboot 6-8 times while holding pram keys) - fixed the problem for me.
  4. thewap, Dec 27, 2014
    Last edited: Dec 27, 2014

    thewap macrumors demi-god


    Jun 19, 2012

    After my MBP 17" 2.8ghz mid 2009 core2 duo's (125GB SSD HD/ 240GB SSD optical bay) bout with Yosemite's install (screaming fans and overheating) things quieted down for a while until -

    The MBP started making noises that I thought was the left fan giving out.

    While popping the hood to take a look see, I noticed undue pressure pushing outwards on the case cover (uh oh...).

    Taking the cover off revealed catastrophic internal battery failure - ruptured outer battery case with internal battery modules swelled 2-3 times the size and soot all over the logic board and fans..

    While hard to pinpoint the battery failure on Yosemite install, logic would dictate that the early severe overheating was a major contributor to the battery failing (almost exploding IMO) on the core2 duo.

    Yosemite installed on my Late Oct. 2011 2.5ghz 17" MBP (500GB Mercury pro 6G SSD drive for the main drive and the 1T Electra 3G SSD in the optical bay), was painless and didn't even blink while indexing - running like a champ..

    Yosemite installed on my daughter's early 2011 MBP 15" 2ghz was also a breeze with no problems.
  5. sjinsjca macrumors 68020


    Oct 30, 2008
    More likely was the inverse: the battery failing dictated the severe overheating.

    That's an old machine. If that was the original battery in it, its lifetime was out of the ordinary. I hope you treated the machine to a new battery at that point!
  6. thewap macrumors demi-god


    Jun 19, 2012
    Could be the reverse..although didn't have the overheating in Mavericks -started immediately after Yo install.
    Your guess is as good as mine.

    Just opened it up, will order a new battery on Monday, and after I install it will see then how the core2 duo does.
  7. grahamperrin macrumors 601


    Jun 8, 2007

    With the information available, that's good advice from newellj.

    I can't find you writing about overheating elsewhere.

    Which component seemed overheated, and what was the temperature?

    (Did the Mac suddenly and unexpectedly stop to avoid overheating?)

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