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Lion is draining battery twice as fast as snow leopard

I just installed Lion on my mac book pro that i purcahsed less than a month ago and the battery has gone down from over 8 hours estimated to less than 4. I'm a college student and a good battery life is possibly the most important function of my computer. Will there be a patch to adress this issue anythime soon?


for now i may revert to snow leapoard, at least until this issue is adressed. Lion is nice, but it's not worth sacrificing my valuble battery life.

MacBook Pro

Posted on Jul 22, 2011 10:45 AM

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39 replies

Jul 31, 2011 10:46 AM in response to a brody

The SMC and power resets are the same for devices with an unremovable battery, like a MacBook Air.


I did both and my battery, which was already fluctuating, completely died, to the point where it's unable to provide power for more than 30 seconds or so. Apple confirmed that I have a power/battery problem.


The telltale sign is the screen that appears after logging in. It looks like grey linen paper -- then the screen goes black and the computer dies.


I suspect a Lion connection. The shop -- an indie Apple-authorized repairer, not an Apple Store -- will have to confirm or deny it for me tomorrow.

Nov 22, 2011 1:44 PM in response to PhangirloftheOpera

I hope it's not too late for me to jump in here. I bought a brand new MacBook Pro yesterday. I fully charged the battery and found it to report 10 hours available! I went about my day transeferring files, apps and other info from the old MBP to this one. After that I noticed that my battery, fully charged, only reported 3 hours of battery. After much troubleshooting, including following tips in this thread (non of which worked), I realized a small, but important detail - Bluetooth was on. My old MBP had bluetooth enabled. I'm assuming when I imported the settings from the old system, it also turned on BT on this laptop.


My suggestion, for anyone reading this thread, is to check your bluetooth settings. Make sure it's off if you don't need it on. If I enable BT, my battery life drops by about 66% immediately. No matter what I do, I can't get this battery to report more than 3 hours available with BT enabled (often less). If I turn it off, I fluctuate between 8 and 10 hours, depending on my activities.


Hope this helps!


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Lion is draining battery twice as fast as snow leopard

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