Q: Battery life dropped considerably on Mountain Lion.

Ok, so with my rBMP base, I used terminal to remove the notification center.

Now, I have slightly more power, but after 20 minutes of browsing the web with Safari, this is what I have:

I upgraded Lion to Mountain Lion, and would like very much to have the previous autonomy.

Maybe I'll return to Lion, but I am affraid that a wipe could remove stuff like iLife or even monitor calibration? What about the battery?

Please Apple, fix my battery

13" i7 MacBook Pro Mid 2012 (Purchased 10 days back)

Upgraded from Lion to Mountain Lion.

Battery is showing fully charged in 95%.

Battery last for 3 - 3.5 hours max with normal usage.

Have the same issue on my MacBook Pro early 2008 and on a my MacBook Air from 2008.

MacBook Air showed very poor battery life already under Lion. Seems to have got worse with Mountain Lion.

Hi, i have the same issues here:

Macbook white late 2009 2,26 ghz 8gb ram.

Ladingsinformatie:

  Resterende lading (mAh):          3545

  Volledig opgeladen:          Nee

  Bezig met opladen:          Ja

  Volledige laadcapaciteit (mAh):          4361

  Statusinformatie:

  Aantal cycli:          592

  Conditie:          Normaal

With Mountain Lion my batteryusage became 3 hours (normal usage), before it was about 6,5 hours.

My Macbook fan is constantly on and the Macbook becomes really hot in few minutes

I hope u will find and fix this issue really soon!

Chris, does your battery state "SERVICE BATTERY" ... it you have Apple Care, go get it taken care of and they will replace it right in the shop as you wait.  It's a quick and easy replacement.

As for another issue, I disabled notification and then re-enabled notification center according to directions found on this forum and elsewhere and I find that when I reboot, Notification Center no longer comes up automatically after a reboot.  I have to navigate to the file in CORE SERVICES and double click it to have it restart. 

Has anyone else renamed, killed, and then re-enabled the Notification Center and noticed this type of behavior?  I just want to be able to run ML to it's capacity trusting that Apple will fix the glitch with battery life.

I decided to pre-emptively send a new round of data to the tech I was working with (a utility called PowerMon).  More sample data to pass to the engineers.

Can't hurt.

HELP US APPLE, how many weeks has it been??????

Computer is running soooo hot, fan is always on, battery life is unacceptable now....

joe808joe wrote:

 

HELP US APPLE, how many weeks has it been??????

Computer is running soooo hot, fan is always on, battery life is unacceptable now....

Open Activity Monitor, select All Processes, sort by CPU and take a screenshot, post it here.

Hi there!

I've got the same problem! batterylifetime is about 3 hours... before the update it was about 7 hours. (mac book pro 15" 2011)

pls help! i just called the german support but they didn't know about the problem!

sers

I decided to open a ticket as I don't want to risk having early battery failure caused by this and it it not be covered as its a wear and tear item. When I spoke to apple care in Switzerland they didn't know about the  issue they put me through to the UK as I ran out of German vocabulary trying to explain. I was able to question the uk representative a bit more and he told me there have been no reports of battery drain on ML. I was advised to repair permissions and reset the PRAM, also to make an appointment at my nearest store for them to inspect the hardware.

I have a support ticket number.

I am running ML on a brand new rMBP and mid 2009 13" MBP.

The rMBP depleats under light use in just over 4 hours.

Besides the fact that the 99% of the new feutures are useless, the new os is killing my battery.... aren't they testing the os before selling it?? ...and thanks to the new way of upgrade the system i can't even go back to lion!!!

...you are not alone.... :-)

we are all waiting for an update.... apple support tells me i have to recover my device so i have the old software...

nice idea but ***** because of my data... it will be gone

Just downgraded to Lion from ML as I was getting sick of my new MBA's (mid 2012) drainage. Everything seems more or less back to normal. I've had at least 4 hours with some heavy use and seem to be getting closer to the 7-8 hours I used to get before upgrading to ML. Won't go back to ML till this is properly dealt with.

i'm setting up my NAS right now and i will save my data. i'm going to do the downgrade but i'm not sure if it's the right way.... the update wasn't for free :-(

I bought Lion in the app store, I checked my previous purchases and lion is available to download, so I aim guessing I can put this on a USB device and recover from it. I can reload files and applications using time machine from my NAS.

Enough discussion already. Apple has a broken ML. Apple absolutely has to fix ML's battery & heat problems.

W H E N?