Is Apple's Mountain Lion causing big battery drains?

Apple launched the latest major software update to its Mac OS last week with OS X 10.8, better known as Mountain Lion. Apple later said that the update had already been downloaded three million times in its first four days. But is there a big software bug with the update that Apple missed?

That's the question that some Macbook Pro and Macbook Air users would like an answer for right now. Ars Technica reports that soon after the launch of Mountain Lion, many Apple laptop owners wrote posts in the company's support forums, stating that since they installed OS X 10.8 they have seen their battery life take a massive hit.

Some owners have said their battery life is now almost half of what was promised for Mountain Lion. A few users claim they can actually see the battery life graphic go down as they use their laptops.

After receiving no response from Apple last week, the company has finally started contacting laptop users who have reported the battery drain issues this week, asking them for system information and activity data. So far, there's no word on what might be causing this problem or how widespread the issue might be among Macbook Pro and Air owners.

Source: Ars Technica

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.Neo said,
As we all know Microsoft never had any issues right after they released a new Windows version.

The difference is of course that Apple fans never admit that there are problems or bugs in Apple software.

fetbaffe said,

The difference is of course that Apple fans never admit that there are problems or bugs in Apple software.


trolls != fans

You're listening to the wrong peeps, buddy, but I take it it suits your view, right?

GS:ios

fetbaffe said,
The difference is of course that Apple fans never admit that there are problems or bugs in Apple software.

Hello, I'm a Mac fan and I'm here to say that OS X has bugs in it - please to meet you.

Glassed Silver said,

trolls != fans

You're listening to the wrong peeps, buddy, but I take it it suits your view, right?

GS:ios

Just any colleague I had for the past 8 years. And I replied to statement that of course shifted focus to Microsoft.

"Yeah, but Micorosft eat babies!".

Mr Nom Nom's said,

Hello, I'm a Mac fan and I'm here to say that OS X has bugs in it - please to meet you.

Hello, nice to meet you too.

fetbaffe said,

The difference is of course that Apple fans never admit that there are problems or bugs in Apple software.


Apple fans don't know any better.

.Neo said,
As we all know Microsoft never had any issues right after they released a new Windows version.
No one says they don't. But here is the difference Sherlock. Microsoft doesn't get to test Windows on 100's of different PC models. Apple has ONE os and ONE computer and they claim to do so much in-house testing yet they never have problems in-house? Oh wait, SJ admitted they saw issues with the iPhone 4 and felt it was no big deal. They rather blame the user.

Honestly, I don't see why people even use Mac's. They aren't worth what they cost

TechieXP said,
No one says they don't. But here is the difference Sherlock. Microsoft doesn't get to test Windows on 100's of different PC models. Apple has ONE os and ONE computer and they claim to do so much in-house testing yet they never have problems in-house? Oh wait, SJ admitted they saw issues with the iPhone 4 and felt it was no big deal. They rather blame the user.

Honestly, I don't see why people even use Mac's. They aren't worth what they cost

Well said!

<snipped, as such comments were removed, and this could take the section off-topic>

#1 cause why your Mac can have battery issues after ANY in-place OS upgrade is a background service / daemon of some kind that is not cooperating with ML and causing high CPU usage.

Go check your Activity Monitor and system logs before whining about it and blaming the OS, shows your level of inexperience when you do that!

Edited by Calum, Aug 5 2012, 10:16am :

The CPU usage is much less under Mountain Lion (and the system also runs much cooler) and the battery life is still terrible.

virtorio said,
The CPU usage is much less under Mountain Lion (and the system also runs much cooler) and the battery life is still terrible.

It's because the battery life of your old laptop just sucks, you have to buy a new MacBook with Retina display in order to get super high quality battery life again.

I guess I should consider myself lucky, because if anything Mountain Lion has improved my MacBook Pro's battery life. I used it yesterday for about three hours, earlier today for roughly 2 hours, and have been currently using it for the past hour - all on battery. And my little battery indicator up in the menu bar says that I have 2:04 left. If true, that would be almost 8 hours total. My 15" MacBook Pro is from early 2009 - one of the first aluminum unibody models. I downloaded and installed Mountain Lion the day after it came out (I tried getting it on launch day, but of course by the time I got off work Apple's servers were hosed). One thing I should mention is that right after Mountain Lion successfully installed, I updated and ran the new version of OnyX and allowed it to go through a full cleanup sweep. Perhaps that is the difference between me and others?

Can't say for sure how battery life is affected, but my time-to-wake-up-from-standby has definitely increased (MBA 2011).

I have not noticed any difference in battery life with Mountain Lion. I am a developer and since Preview 4, performance has been fine. I'm using an Early 2011 15in Macbook Pro. I'm thinking like with iOS battery life, it is being drained by location and notification settings. I'm sure Apple will release a minor update in few weeks to fix any problems that appeared at launch.

+Rant Alert+
As for the trolling on both sides what wtf do expect with a new release of software. I don't think I have ever encountered a piece of software that was "perfect" out the gate. I hate that every thing has to be so political. Mac/PC, Liberal/Right, Fox/NPR. It's stupid and so much energy wasted.

I have the mid-2011 MBP 17" and I can tell you that just surfing the internet with nothing running and listening to Itunes drained by battery from 97% to about 45% in less than 1.5 hours. It is horrible. I called Tech Support already. This is stupid.

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