Yosemite battery drain solution found?

As so many of us here, I experienced fast battery drain (and, oddly, charge) under Yosemite. The battery used to last 6+ hours for light work under Mavericks, but only 2-3 hours after I installed Yosemite. There were no cpu-hungry processes, PRAM and SMC reset wouldn't do anything. The battery would still last 2-3 hours only.


Not any more. I'm back on 5-6 hours. What happened?


Two days ago, I opened my Macbook Pro to clean out the fans. Careful as I am, I disconnected the battery cable from the logic board. I unexpectedly had to go away, so the cable was left unplugged for an hour or so. Later, I finished the job and put all back together. To my surprise, my battery appears to be fine after that! I've drained it to zero twice since that – it lasted much longer than it ever has under Yosemite.


Maybe someone else suffering from a bad battery might want to try this...

MacBook Pro (17-inch Early 2011), OS X Yosemite (10.10.1)

Posted on Jan 22, 2015 7:37 AM

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23 replies

Feb 18, 2015 1:25 PM in response to pariseau

Good luck with that! In the massive thread that details the logic board issue Tim Cooks email and other phone numbers were posted. No one got any positive results. In may case, the next time I'm where our Apple store is...2.5 hours away, I will be taking my MBP back to Mavericks. I'll have them do it. I can afford to do it with this particular laptop...nothing to lose. Now, someone said they did that and the problem still persisted. If that's true than I think we're all screwed. Apple does not seem to care about the minority of us that are experiencing a wide variety of problems. They would rather pursue the iCar and spend money revamping the stores and paying dividends. Psychologically, after 3 logic board replacements I really do feel like just chucking it into the garbage. But then they will and are not held accountable. By the way, my daughter did not upgrade to Yosemite and has no battery problems. Please post if you find any contacts...always worth a try. Even posted on the apple Facebook page....they never check that either.

Feb 18, 2015 1:29 PM in response to Diane1349

To be honest, the people at the genius bar and the senior advisor on the phone were trying their best to help me. But unfortunately, we couldn't solve the problem and at that point they had never heard of the issue before, telling me that if there would be a change in the battery life it should be a greater one since Yosemite is supposed to increase battery life (and that no update would worsen things on purpose, which actually makes sense). I just don't understand the fact that some computers are really okay where some others are not (my coworker had bought the same laptop only one year after me and his really is fine, lasting 8 hours on average).


My warranty was over a week after the issue so at this point I'm stuck with this issue until god knows when it will be fixed (if it will ever ber fixed).


EDIT: Sorry, was trying to respond to Pariseau 🙂

Feb 18, 2015 2:21 PM in response to pariseau

I don't think cleaning the fans did the trick in my case, but unplugging the battery from the logic board and thus apparently performing a "deeper" reset than PRAM/SMC (indicated by the fact that the device boots twice and the system clock is reset). I'd love to hear back from someone who actually tried to replicate this whether it worked for them. Anyone?

Feb 18, 2015 2:24 PM in response to pariseau

I couldn't agree with you more pariseau....frustrating. The only good thing is that my MBP issue was caught 1 week before my extended warranty was up. So far they have kept the replacements coming without charging me. In the mean time I bought a mac mini, giving up on laptops. It has two issues which seem to be related to Yosemite. My MBP now has the logic board issue and the battery drain issue. My husbands iPad has an issue. There were two issues with my iPhone. Quality is just not a company standard anymore. Yet I just can't go back to a PC, especially when they're now charging yearly just to use some of their products like Microsoft Office. NO way. It's only been in Jan of this year...going in for the 4th logic board, that the genius finally admitted there was a problem and Apple needed to do the right thing. But then we still have the problems don't we.

Feb 18, 2015 2:26 PM in response to pariseau

Just make sure that everything is backed up and that anything you don't want to lose is accounted for. It's not just wiping and replacing the osx. From what I gather that doesn't actually do the entire job. I wish I could be more specific but I just don't recall. Perhaps it has something to do with programs that had been updated to Yosemite compliance.

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Yosemite battery drain solution found?

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