Yosemite Upgrade vs Clean Install battery life

Discussion in 'MacBook Pro' started by aoaaron, Oct 23, 2014.

  1. aoaaron macrumors 6502

    Sep 4, 2010
    I can confirm from my experiences:

    Upgrade of Yosemite from a 2014 rMBP showed 3-5 hours of battery life per 100% charge.

    I then formatted and clean installed yosemite. Battery life is now 8 hours+ from a single 100% charge with improved battery life over Mavericks. If people are suffering from poor battery life on Yosemite's upgrades, give a clean install a go if you have time. It helped me :)
  2. Bending Pixels macrumors 65816

    Jul 22, 2010
    Personal recommendation only - clean install. Yes, it takes longer, but I've found that I tend to avoid any of the issues that some people who choose to do an upgrade (vs. clean install) run into.

    And yeah...it's a leftover conditioning (ala Pavlov's dog) from using WinDoze for too many years.
  3. GP-SE macrumors 6502

    Feb 27, 2013
    I usually do a clean install, however I went from Mavericks to Yosemite doing an upgrade though Mac App Store. I haven't had any issues at all, fast boot, and still getting identical battery life as Mavericks.
  4. blooperz macrumors 6502

    Dec 10, 2013
    Also did an upgrade through the App Store...no issues to report...battery life is fine...

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