PDA

View Full Version : Mountain Lion Battery Life Question




Ronin64
Jul 27, 2012, 11:13 PM
Hi, I was wondering how the battery life is with Mountain Lion? When I upgraded to Lion my battery life took a hit and was wondering if it will drop more with Mountain Lion.

Thanks in advance.



east85
Jul 27, 2012, 11:16 PM
Hi, I was wondering how the battery life is with Mountain Lion? When I upgraded to Lion my battery life took a hit and was wondering if it will drop more with Mountain Lion.

Thanks in advance.

It's definitely improved in Mountain Lion. I came from Lion and I can tell there is a vast improvement. Most people here have reported the same thing. I would suggest you back up your data and do a clean install of Mountain Lion for the best results.

dr.george
Jul 29, 2012, 09:47 AM
I'm getting terrible battery life on ML, draining super fast.

Bad as half the time.

Anyone else experiencing this??

east85
Jul 29, 2012, 09:48 AM
I'm getting terrible battery life on ML, draining super fast.

Bad as half the time.

Anyone else experiencing this??

Did you do a clean install or upgrade?

You may want to try a clean install if not.

http://osxdaily.com/2012/07/25/how-to-clean-install-os-x-mountain-lion/

dr.george
Jul 29, 2012, 10:30 AM
First did an upgrade, then a clean install. Same thing, horrible battery life.

GGJstudios
Jul 29, 2012, 10:47 AM
I'm getting terrible battery life on ML, draining super fast.

Bad as half the time.

Anyone else experiencing this??
It likely has nothing to do with ML, and more likely is a runaway process or other issue. Launch Activity Monitor
Change "My Processes" at the top to "All Processes"
Click on the CPU column heading once or twice, so the arrow points downward (highest values on top).
Click on the System Memory tab at the bottom.
Take a screen shot (http://guides.macrumors.com/Taking_Screenshots_in_Mac_OS_X) of the entire Activity Monitor window, then scroll down to see the rest of the list, take another screen shot
Post your screenshots (http://forums.macrumors.com/showpost.php?p=14126379&postcount=16).

There are many factors that impact your battery life. See the BATTERY LIFE FROM A CHARGE section of the following link for details, including tips on how to maximize your battery life.

This should answer most, if not all, of your battery/charging questions:
Apple Notebook Battery FAQ (http://forums.macrumors.com/showpost.php?p=9875442&postcount=23)

dr.george
Jul 29, 2012, 11:08 AM
It likely has nothing to do with ML, and more likely is a runaway process or other issue. Launch Activity Monitor
Change "My Processes" at the top to "All Processes"
Click on the CPU column heading once or twice, so the arrow points downward (highest values on top).
Click on the [/B]System Memory[/B] tab at the bottom.
Take a screen shot (http://guides.macrumors.com/Taking_Screenshots_in_Mac_OS_X) of the entire Activity Monitor window, then scroll down to see the rest of the list, take another screen shot
Post your screenshots (http://forums.macrumors.com/showpost.php?p=14126379&postcount=16).

There are many factors that impact your battery life. See the BATTERY LIFE FROM A CHARGE section of the following link for details, including tips on how to maximize your battery life.

This should answer most, if not all, of your battery/charging questions:
Apple Notebook Battery FAQ (http://forums.macrumors.com/showpost.php?p=9875442&postcount=23)

Here it is, any thoughts?

Goldfinger
Jul 29, 2012, 11:10 AM
It's much improved for me (early 2011 13" MBP). I also took a serious hit with Lion. With ML it seems more in line with Snow Leopard battery performance.

(upgraded, no clean install)

GGJstudios
Jul 29, 2012, 11:11 AM
Here it is, any thoughts?
I don't see anything there that would indicate high usage of system resources. Did you read the battery life info I suggested? There are some useful tips there for maximizing your battery life. You might also try resetting the SMC (http://support.apple.com/kb/ht3964).

duecedos
Jul 30, 2012, 03:16 PM
http://www.acgrafx.com/_pics/22_1.png
http://www.acgrafx.com/_pics/22_2.pnghttp://www.acgrafx.com/_pics/22_3.png
http://www.acgrafx.com/_pics/22_4.pnghttp://www.acgrafx.com/_pics/22_5.png
http://www.acgrafx.com/_pics/22_6.png
http://www.acgrafx.com/_pics/22_7.png

Please let me know if there is anything I can do to maximize the battery life/I don't need running.

alFR
Jul 30, 2012, 03:31 PM
Please let me know if there is anything I can do to maximize the battery life/I don't need running.

I'd get rid of Flash Player or install ClickToFlash for a start.

GGJstudios
Jul 30, 2012, 03:34 PM
Please let me know if there is anything I can do to maximize the battery life/I don't need running.
Begin by restarting your Mac to reset your page outs to zero. Then use your Mac as you normally would, periodically checking to see if you have any page outs under normal use.

Also, follow the suggestions here:
Performance Tips For Mac OS X (http://forums.macrumors.com/showpost.php?p=13817005&postcount=2)

sgtcasey
Jul 30, 2012, 10:32 PM
I have a 15" late-2011 MBP which I did a clean install of ML on. Before ML I had awesome battery life but since ML I can almost watch the battery percentage drop. Since the clean install I've installed Office 2010, Chrome, Handbrake, Citrix Receiver, and VLC only. I didn't see anything standing out in my processes list.

I decided to download and install gfxCardStatus and I noticed I was running on the discrete card (ATI) and not the integrated one. Odd since I am running on battery right now and I've not yet even installed anything which would even require the additional graphics card oomph.

Since forcing the graphics card to the integrated I've gone from 71% for 2.5 hours to 71% for 5 hours.

Is there an issue with ML not using the integrated card or is there a setting somewhere I'm missing? I'd prefer not to use a third-party app to do something I can do in the usual settings of my MBP.

Additionally, what might I be doing wrong compared to those who aren't having battery life issues with ML?

Thanks everyone.

Dave

Gorge
Jul 30, 2012, 10:39 PM
Mine is awful. I came home and my laptop was at 99%. With chrome, excel, and a 2nd monitor running, I'm at 97%. I just restarted my laptop and brightness is at 100%. I haven't been running any intense programs/sites either. I have an early 2011 13 in MBP

TyWahn
Jul 30, 2012, 11:53 PM
I seem to be having battery issues as well. I just took it off the charger maybe 20 minutes ago and now I am at 87% only web browsing and iTunes running.
I also just installed a brand new SSD and installed ML on it then did Migration Assistant. So I am not really sure which is to blame.

fins831
Jul 31, 2012, 07:37 AM
http://www.applefansite.com/2012/07/mountain-lion-users-reporting-battery-draining-issues/

I woke up this morning at 8:11AM EST and my battery was at 48 percent, it is now 8:35 and I am at 12 percent....I literally watched my battery drain 8 percent by navigating 3 websites from 8:30 to 8:35....this is amazing...its like 1-2 percent per minute right now, its just dropping like a rock.

wytwolf
Jul 31, 2012, 08:34 AM
Apparently chrome will activate the discrete video card more then safari. This will have a major impact in battery life.

fins831
Jul 31, 2012, 09:00 AM
Apparently chrome will activate the discrete video card more then safari. This will have a major impact in battery life.

What about firefox or aurora? I been using aurora and safari mainly, and this drain is just insane. don't use chrome ever really, it is installed but i rarely use it

skiphunt
Jul 31, 2012, 09:58 AM
I bought a mid 2012 Macbook Pro 13 i7 machine that had Lion on it. Upgraded to Mountain Lion and saw my battery performance go from nearly 7hrs under Lion to just over 2hrs under ML. I read several threads and tried all the SMC/PRAM resets, killing email accounts that I don't use much, turning off iCloud, etc. to no avail. They only made a marginal difference.

I was about to call Apple as a last resort, and then look at returning this machine since I'm still inside my return to BestBuy window.

On a whim, I started closing apps one by one that automatically launch on start up. After closing SugarSync, most of my battery performance came back. Closing DropBox helped some as well. Now, it appears that pretty much all my battery performance is back and possibly a bit more than before with Lion.

I haven't tested this for days or anything, but for the last few days I've only been consistently getting a little over 2hrs of performance on a full charge. Now, as of last night and this morning, I'm getting at least 7hrs and sometimes showing over 8hrs left. I've only been running Safari and Mail, but just closing SugarSync and DropBox seemed to have drastically improved my battery performance under Mountain Lion.

Predator69
Jul 31, 2012, 10:28 AM
Did an upgrade, I use a lot of Teamviewer and Browsing the on my MBA and after ML i notice a slight drop on battery life or is it because it just shows the percentage in ML?

I used to show the remaining hours on SL previously.

PLus I notice with ML my MBA built up heat just below the screen . Anyway notice the heat ?

dcorban
Jul 31, 2012, 12:40 PM
There appears to be a bug with Google Chrome where it forces the use of the discrete card. Maybe they will put their slick background autoupdate feature to use and fix this.

dr.george
Jul 31, 2012, 02:25 PM
I stopped using Chrome and battery improved A LOT.

Also updated flash.

Using safari now.

duecedos
Jul 31, 2012, 02:25 PM
Begin by restarting your Mac to reset your page outs to zero. Then use your Mac as you normally would, periodically checking to see if you have any page outs under normal use.

Also, follow the suggestions here:
Performance Tips For Mac OS X (http://forums.macrumors.com/showpost.php?p=13817005&postcount=2)

My system Early 2011 Macbook Pro 13" base model w/ 8 GB ram
2.3 Intel Core i5

I did as you guys suggested. It is still dropping a bit faster in the beginning (100%-80%) than before but it evens out in the middle of the charge (60%-30%) of the battery charge. My wife's Macbook Pro (Late 2001) seems to be having no issues but then again, she doesn't have anything running in the background. She only uses Safari and Word.

I now get about 5 hours of battery life out of it which seems about what I got with Lion. I can't remember but I think Snow Leopard was a bit longer. However, I can't confirm that.

I took a few extra steps to conserve battery life. Turned off TWITTER running as an app in the background. Turned of FACEBOOK, AUTOANSWER FACETIME, and maybe one more. I can't remember.

This gives me about 5+ hours now.

What kind of battery life should we be expecting from a Macbook Pro Early 2011 base model 13", 8 GB of ram? I think I'm very happy with 5 hours now.

GGJstudios
Jul 31, 2012, 02:28 PM
What kind of battery life should we be expecting from a Macbook Pro Early 2011 base model 13", 8 GB of ram?
As battery life depends completely on your configuration, settings and what you have running, there is no "expected" battery life. It can vary widely between users of the same model computer.

duecedos
Jul 31, 2012, 02:30 PM
As battery life depends completely on your configuration, settings and what you have running, there is no "expected" battery life. It can vary widely between users of the same model computer.

Thanks.

wolfaaron
Jul 31, 2012, 02:54 PM
My battery is shortened by 25% after the upgrade to Mountain Lion.

Here's a screenshot if someone wants to tell me if there's a problem:
http://f.cl.ly/items/3j1d1L243m1j0M3z1j3n/CPU.png

sgtcasey
Jul 31, 2012, 03:47 PM
I just uninstalled Chrome as well. I'll see how that might help with battery life. I've been getting more into Safari anyway.

Dave

fins831
Jul 31, 2012, 05:48 PM
Just charged my laptop to 100 percent, took it off charge closed lid, come back 1 hr later, 95 percent, log on to macrumors to type this, I have already dropped another 2 percent....there is so serious drainage going on.

JS82712
Jul 31, 2012, 06:09 PM
On my 2011 MBP, my usage time has always been...garbage since the lion upgrade (i miss SL), and ML didn't change any of that; I do, however, notice a significant improvement in standby/sleep time.

callan37
Jul 31, 2012, 06:41 PM
Initially, my battery life was horrible. However, since doing a clean install, it has been excellent, on par, or better than Lion. I have also stopped using Chrome. Not sure if either the clean install, or Chrome are the culprit, or if it was all just a co-incidence.

sgtcasey
Jul 31, 2012, 07:21 PM
Initially, my battery life was horrible. However, since doing a clean install, it has been excellent, on par, or better than Lion. I have also stopped using Chrome. Not sure if either the clean install, or Chrome are the culprit, or if it was all just a co-incidence.

I uninstalled Chrome a short while ago and I'm looking at 64% battery life with an expected time of 2:31. I originally did a clean install of ML but I think I'm going to do another clean install and skip the Chrome install this time.

Off to make a USB install drive.

Dave

fins831
Jul 31, 2012, 08:23 PM
I uninstalled Chrome a short while ago and I'm looking at 64% battery life with an expected time of 2:31. I originally did a clean install of ML but I think I'm going to do another clean install and skip the Chrome install this time.

Off to make a USB install drive.

Dave

I just got rid of chrome also, and my battery life has stabilized...Talked to my friend who's an apple genius other side of country and he said any apps not optimized for notification center could be draining the battery...Chrome was showing up in the notification center when I don't believe it was optimized for it, and causing a hiccup...my battery life has really stabilized...I went from 92-80 in about 18 minutes, deleted chrome, restarted and now I am at 76 percent 45 min later...so much better.

Good suggestion, glad its working for me.

sgtcasey
Aug 1, 2012, 09:22 AM
So far things look good. Last night I did a clean install of ML using my 8GB USB thumb drive and then installed Office 2010 and a few other apps from the App Store. Then I shut down the laptop and left it plugged in all night long to charge up.

I just fired it up this morning when I got to work and I'm sitting at 99% with 7 hours remaining. I'll leave it on all day to let the battery run down and then charge it up to 100% again.

Dave

GGJstudios
Aug 1, 2012, 10:42 AM
I'll leave it on all day to let the battery run down and then charge it up to 100% again.
If you're doing that to test it, no problem. However, you don't need to fully drain the battery every time you use it. If you're draining it for the sake of draining it (as opposed to not having AC power available), you're putting unnecessary cycles on your battery. Run on battery whenever you need to and plug it in whenever you can. You can plug or unplug at any time, regardless of the charged percentage. Just make sure you don't run on AC power all the time, as your battery needs to be used regularly to stay healthy. This should answer most, if not all, of your battery/charging questions:
Apple Notebook Battery FAQ (http://forums.macrumors.com/showpost.php?p=9875442&postcount=23)

VacTacks11
Aug 1, 2012, 11:20 AM
I recommend using gfxCardStatus. It's free and works in both Lion and Mountain Lion. It tells you when an app has changed the video card from Integrated to Discreet.

You can also use it to force all apps to use the Integrated video card (or the Discreet).

That could help with battery life.

GGJstudios
Aug 1, 2012, 11:21 AM
I recommend using gfxCardStatus. It's free and works in both Lion and Mountain Lion. It tells you when an app has changed the video card from Integrated to Discreet.

You can also use it to force all apps to use the Integrated video card (or the Discreet).

That could help with battery life.
Check out the BATTERY LIFE FROM A CHARGE section of the link in my last post for that and more ideas.

fins831
Aug 1, 2012, 12:09 PM
I took every non updated app that was showing up in the notification center in system preferences and just deleted it. Was just chrome, got rid of it, then turned my computer off, and reset the SMC, charged it fully to 100 percent, left it on the charger for 2.5 hours more, then just straight used the internet for the next few hours until it went to sleep automatically.

I then let it stay dead for 5 hours, charged to 100, then turned it back on.

This is what an Apple Genius told me to do, basically said calibrate the battery again, for me especially cause I am over 600 cycles and new OS might have messed things up, so the SMC reset + new calibration could help.

Currently seeing better battery times, less of a drain, but its only first charge since reset/calibration, but I am def happier I am back to getting 4-5 hrs instead of 2-3

GGJstudios
Aug 1, 2012, 12:11 PM
This is what an Apple Genius told me to do, basically said calibrate the battery again, for me especially cause I am over 600 cycles and new OS might have messed things up, so the SMC reset + new calibration could help.
Despite what the Genius said, the built-in batteries in the newer Mac unibody notebooks come pre-calibrated and do not require regular calibration (http://support.apple.com/kb/HT1490) like the removable batteries in older Apple notebooks. The SMC reset likely resolved your issue, with no calibration necessary.

It's important to remember than "Genius" is only their job title, and not necessarily an indication of their knowledge, experience or expertise.

fins831
Aug 1, 2012, 12:24 PM
Despite what the Genius said, the built-in batteries in the newer Mac unibody notebooks come pre-calibrated and do not require regular calibration (http://support.apple.com/kb/HT1490) like the removable batteries in older Apple notebooks. The SMC reset likely resolved your issue, with no calibration necessary.

It's important to remember than "Genius" is only their job title, and not necessarily an indication of their knowledge, experience or expertise.

I am aware lol, I am just glad that my problem is subsiding, so I figured if I did it, its worth mentioning, even if some might find it hokum. They are not geniuses, but sometimes can help...lot of times people on the forums know more about problems and solutions, or are aware of a certain problems and geniuses are oblivious...but my drain was a problem so I asked and listened...

Just passing the advice along.

wmouazzen
Aug 1, 2012, 12:56 PM
getting horrible battery life after the upgrade to mountain lion on my rMBP.

krspkbl
Aug 1, 2012, 01:08 PM
My battery life has improved since upgrading to Mountain Lion. I honestly expected it to be worse.

I suppose the fact that I installed an SSD at the same time as Mountain Lion has improved battery life a bit too, so, I can't really tell where the improvement is coming from.

On Lion I was getting 2.5hrs MAX. Mountain Lion gives me anywhere between 3-4 hours depending on what I'm doing and the settings. With normal usage I get ~3.5hrs out of a full charge.

My battery has had ~1400 cycles and is at 89% health.

Tunster
Aug 1, 2012, 02:53 PM
I've got similar issues and started a new thread on if anyone returned to Lion. No way was I going to continue with ML until this issue is resolved maybe in a subsequent update.

My MacBook Pro 13 (Early 2011) after an upgrade was suffering immensely. With general browsing (and avoiding Flash) or light application usage , I can now get a sensible 5 - 6 hours. Before hand with ML, anything I did seemed to make the CPU work much harder and I never got many opportunities where the laptop seemed cool. I can't post the stats I had, but some of the Apple background tasks seemed to peak and drop CPU constantly. I never saw the average CPU drop below 15 - 20%. Maybe a reinstall is what I needed but I'm not going to chance it until maybe 10.8.2 or 10.8.3 gets released.

Zmijutin
Aug 1, 2012, 03:27 PM
Not sure if ML is badly optimized for batteries or something else, but today i've calibrated battery after charging it for 5 hours and then running it down to zero (it took little less than 5 hours) and leaving it overnight to discharge to the minimum. in the morning I've plugged it AC and left for work. After 8 hours of charging battery capacity fell from 5200 mAh to 5100 mAh? How's that possible? Will it come back to some higher values or this is it? It really sucks that battery capacity drops that quickly. MBP is only 10 months old and it has 133 cycles.


Any tip?

ML is a clean install on an OWC SSD 6G.


Thanks!

clukas
Aug 1, 2012, 04:00 PM
As for myself, I have performed a clean install and am running a more or less default system with few installed apps, and have definately lost on battery life.

franc11s
Aug 2, 2012, 07:05 AM
This is a major problem for many people.

https://discussions.apple.com/message/19015287#19015287

duecedos
Sep 14, 2012, 12:08 PM
Thank you all for your help.
My battery life is now as good as I would expect.

I have since turned off Dropbox and Twitter while still running Calendar, Email, iTunes and Safari in the background with great battery performance.

You guys are great!

mikey2004
Sep 14, 2012, 04:13 PM
My battery life has dropped considerably since updating to Moutain lion. I use to get about 6-8 hours battery life, im lucky if I get 3 hours now and when my macbook is on charge the battery percentage only goes up to 99% no longer 100%

GGJstudios
Sep 14, 2012, 04:18 PM
My battery life has dropped considerably since updating to Moutain lion. I use to get about 6-8 hours battery life, im lucky if I get 3 hours now and when my macbook is on charge the battery percentage only goes up to 99% no longer 100%
It's normal that your battery may stop charging between 93-99%. For details, read the CHARGING section of the following link. The link below should answer most, if not all, of your battery/charging questions. If you haven't already done so, I highly recommend you take the time to read it.
Apple Notebook Battery FAQ (http://forums.macrumors.com/showpost.php?p=9875442&postcount=23)