Macbook Pro Retina battery life fix

My machine came with Mountain Lion 10.8.2 a few weeks ago. When battery was charged to 100%, I had about 2,5 hours of battery time remaining (as showed when clicking the battery icon on top of the screen). I did the procedure below and now I have between 5 and 7 hours. I'm yet to test the real life battery time.
Another user wrote that the problem is said to be created by a corrupt file created by Migration Assistant and that the file needed to be removed through the procedure below. Interestingly enough, I didn’t use Migration Assistant when setting up my machine (I think I opened Migration Assistant at one point just to check it out, but I didn’t use it to transfer any files or settings). Also, after doing the procedure, the file was still there, however with today’s date. Nevertheless it seems to have worked very well for me, so it may be a good idea to try the procedure even if you have never used Migration Assistant.
Before doing the procedure, I took a copy of the file in case I later would regret deleting it and want to restore it. Open Finder. While holding down the Alt key click on the Go menu and select Library (if you don’t hold down the Alt key, Library won’t show on the menu). From the Library folder, open the Preferences folder. Then copy (but in my opinion don’t remove) the file com.apple.desktop.plist to another place that you can remember. It might be a good idea not to delete this file directly from Finder, since after I had completed the procedure, the file was still to be found in the Preferences folder (with today’s date).
The procedure:
In this procedure, leave out all quote marks “ “
Open Terminal (by going to the Applications folder and from there the Utilities folder and from there opening Terminal).
On the keyboard type “cd ~/Library/Preferences/” and hit Enter.
Now type “rm com.apple.desktop.plist” and hit Enter again.
Finally, type “killall Dock” and hit Enter.
After doing this I restarted my machine and let the battery go down to 0 % in order to then charge it up to 100 %.
Kristoffer

Did this work for you?
Why do all the reviews out there (MacWorld, Engadget, etc.) claim they have 7 hours and we all end up with 2-4 hours. I think all the media is focused on selling products for Apple and do no really do any testing of their own.
Shame that even the guy who sold me this laptop 4 days ago claimed that I should get 6-7 hours of battery life and all I have seen so far is 2 maybe 3 hours at most.

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im having the same problems, bought my 13" MacBook Pro last week and the battery is terrible on it, but i googled it and a lot of other people are having the same issues

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Why doesn't the Macbook Pro's battery life last anywhere near 5 hours, as advertised? This is my second one and it lasts 2. It's false advertising, and Apple doesn't seem to making a big deal or know anything about it, which i'm sure they do. Since their general practice is to deny problems exist in all their products, i'm here to make it known that the most recent Macbook Pro has a severe battery issue and it needs to be addressed.
I'm running OS X 10.8.3, Bluetooth is off, and haven't installed any third party software.

My MacBook Pro is over a year old and still gets 2.5 to 5 hours, depending on how intensively my application activity is hitting the CPU and disk. Remember that battery life depends on usage and component loads. You could get 1 hour editing HD video since it would hit all cores and slam the disk constantly, or 8 hours in a cabin in the woods with wifi and Bluetooth turned off, only writing text files, and with the backlight turned down and no disc in the drive. You should check Activity Monitor to make sure you don't have some processes using unusually high amounts of CPU for long periods of time (like browser tabs running Flash ads in the background, chewing up CPU and battery power without even being seen).
Like mende1 says, there are not huge numbers of Mac users getting only 2 hours, or the world would have heard about it by now and MacBook sales would be down. If you are only getting 2 hours there is something going on local to your machine or usage habits.
Terry Mele wrote:
Since their general practice is to deny problems exist in all their products
That's not strictly true. Apple has often announced updates or repair/exchange programs to address various problems that had come up over time. Maybe not always, but it does happen. They also have often helped me and my friends when we brought in Macs that were out of warranty and had problems. They had no legal obligation to work on our Macs for free, but they did anyway.

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I just bought the new macbook pro retina 2013 (first macbook!) I wanted to know what I can do to extend the life of the battery. Right know, I start charging the battery once it gets to about 60%. I keep the charger plugged in when im at home and left the battery discharge at uni. Would doing this having any advatange or disadvantage for the battery?
Also once the battery reaches 100%, would it overcharge if it is kept plugged in? or would it just start to use the power from the adapter instead of the battery
Anyother tips?
Thanks

Look at these links. They will provide you with all the information you need regarding MBP
batteries:
http://www.apple.com/batteries/notebooks.html
http://support.apple.com/kb/HT1446
csupinski is 100% correct, the OS will not allow the MBP battery to be overcharged.
Ciao.

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Hello guys,
I would like if someone could help me and give me tips for protecting the battery life for macbook pro retina, as I work for long hours on my macbook for about 8 hours so i keep it plugged on and from what I heared that it affects the macbook battery life. What is the good things to do in order to keep the battery live longer.

Keep it plugged in whenever possible.
If you keep it plugged in all the time, make sure that at least twice a month run it on
battery until the battery charge level drops to about 50 to 40%.
Do not let the battery charge run down to 0%.
That will affect battery health negatively.
For battery information:
Click  in the menu bar.
About This Mac > More Info.. > System Report > Hardware > Power > Battery Information
For more on batteries:
http://www.apple.com/batteries/notebooks.html
Maximize Runtime / Tips for maximizing your battery charge
http://support.apple.com/kb/HT1446

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What % is the battery at? If it's at 95% and above, it won't charge. It must get lower to charge. If it was lower than that and it won't charge no matter what, you'll need to contact AppleCare because you can't service that laptop yourself for this issue if it is a bad battery.

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Macbook pro retina battery won't charge fully

Hello,
Im not sure why but my 1 year old macbook pro retina 15inch won't fully charge. It gets to a charge between 75% and 88% and it will at that point stop charging.
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FF

Have you tried resetting SMC?
Reset SMC. http://support.apple.com/kb/HT3964
Choose the appropriate method.
"Resetting SMC on portables with a battery you should not remove on your own".
Best.

Late 2013 13" Macbook Pro Retina Battery Issues

Just got my new MacBook Pro 2 days ago and been using it for web surfing (Safari), few coding projects, skyping and listening to music mainly. Somehow the battery lasts for about 6 hours at it's best and not only that but the battery estimate is not correct at all. I charged it to 84% and it said 12 hours left then at 70% after exactly 54 minutes of battery usage it said 5 hours and 50 minutes left.
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District_58 wrote:
Hi. I have a same problem with my new MBP 13 RETINA (late2013)
Battery life is BAD! I'm using it without Skype for 2 days, but still, just a web browsing can't kill charge so fast.
How bad is bad? How long is your battery lasting?
What does your Activity Monitor show under the Energy & CPU tabs? There does seem to be an intermittant issue in Mavericks where after coming out of sleep, the kernel_task process will start using ~100% of a CPU forever. This will drain the battery really quickly, and seems to require a reboot to fix. I run iStat menus, and it's pretty obvious in the CPU graph menu when this happens, as the graph shows a constant 25% overall CPU utilization.
When you say you are just web browsing, what are you doing? What browser, and what kind of websites?
A lot of folks on the MacRumors forums are reporting really bad battery life if they use Opera. Try Safari instead.
If you are watching Flash based videos or otherwise visiting Flash heavy websites, that will hurt battery as well. If you can import the videos you want to watch into iTunes they should use much less battery. If you are using Safari and the Flash stuff on the websites is ads or other stuff you don't need to see, install Click 2 Flash to stop it from automatically loading.
Finally, try to keep your screen brightness as low as is comfortable. Half brightness or lower can help.
I get a consistant 10+ hours of battery life using my Late 2013 system all day for browsing with Safari, editing photos with iPhoto & Preview, and creating documents with Pages. I have BlueTooth disabled, and brightness at 1/2 or less.
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I have a MacBook Pro 15", with a processor 2.4 GHz Intel Core i7 and memory 4 GB 1333 Mhz DDR3 running OS X 10.7.2. It was purchased only a week ago and I'm noticing horrible battery issues. I have checked Activity Monitor and nothing, even while I'm browsing the Internet is using a large amount of CPU, so I'm a bit confused. I know that this is an issue that many people are facing as I can see from all the other discussions. Has anybody found a solution to this issue at this point, or has Apple released any information about an update ot fix the issue, anything at all? Just pretty disappointed since I came from an early 2008 MacBook Pro which had about a 4 hour battery life and was expecting a new Mac with 7 hours at least. Thanks everyone for the help, sorry for a question that I'm sure every is sick of.

Calibrating the battery is a slightly more specific process than Chris suggests. Instructions are here:
http://support.apple.com/kb/HT1490
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so basically my macbook pro is only lasting 2 hours on battery, its supposed to last up to 7. I only light work that dosent work the macbooks battery too hard, i use low brightness, and i dont have crazy stuff installed i keep it clean. I called apple and they told me that 2 hours is not normal, that i should be getting 7 hours max wit what i do, especially the retina macbook pro since it has an avanced battery and hardware.
they remotely accessed my macbook and said that the battery issue and heat issue is software related, and they said my macbook software issues was virus related. they told me that i would need to pay them the support package so they can run their software remotely to my mac to fix the virus related issue.
so my question is, is this really possible, for battery and heat issues to be affected by software and virus, or is it just an excuse so they can get my money.
even if it is true, cant i just fix it by reinstalling a new copy of osx to my macbook pro and the virus will be deleted. or isnt there a software that can delete this specific virus for me? what options can i take?

You're missing my point. I know that watching movies is more intensive than web browsing and maybe the problem is to do with VLC.
When I watch a movie through quick time I still have an estimated 6h26m remaining with 65% battery left. In comparison when I watch a movie on VLC it showed around 3h left with the same amount of battery left.
Also, I'm not sure if this is to do with VLC or if it was a coincidence, but my CPU was at around 30% (system) and the temperature doubled.

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Hey guys, I just got a MacBook Pro 13" with Retina Display and the battery life seems quite mediocre compared to what it's promised to have.
I get about 3:00 when editing lightly using Aperture which I know isn't the most simple application. I'm just worried cause Apple promises 7 hours, I know that is web surfing but (correct me if I'm wrong) I don't think that Aperture would be using double the power. My brightness is at 50%, backlit keyboard off aswell as bluetooth.
This is also my battery stats.
Model Information:
Serial Number:          C0123660VNGDY3N7S
Manufacturer:          DP
Device Name:          bq20z451
Pack Lot Code:          0
PCB Lot Code:          0
Firmware Version:          511
Hardware Revision:          000a
Cell Revision:          1155
Charge Information:
Charge Remaining (mAh):          6677
Fully Charged:          Yes
Charging:          No
Full Charge Capacity (mAh):          6677
Health Information:
Cycle Count:          4
Condition:          Normal
Battery Installed:          Yes
Amperage (mA):          -67
Voltage (mV):          12443
System Power Settings:
AC Power:
System Sleep Timer (Minutes):          10
Disk Sleep Timer (Minutes):          10
Display Sleep Timer (Minutes):          10
Wake on AC Change:          No
Wake on Clamshell Open:          Yes
Wake on LAN:          Yes
AutoPowerOff Delay:          14400
AutoPowerOff Enabled:          1
Current Power Source:          Yes
DarkWakeBackgroundTasks:          1
Display Sleep Uses Dim:          Yes
PrioritizeNetworkReachabilityOverSleep:          0
Standby Delay:          4200
Standby Enabled:          1
Battery Power:
System Sleep Timer (Minutes):          10
Disk Sleep Timer (Minutes):          10
Display Sleep Timer (Minutes):          2
Wake on AC Change:          No
Wake on Clamshell Open:          Yes
AutoPowerOff Delay:          14400
AutoPowerOff Enabled:          1
DarkWakeBackgroundTasks:          0
Display Sleep Uses Dim:          Yes
Reduce Brightness:          Yes
Standby Delay:          4200
Standby Enabled:          1
Hardware Configuration:
UPS Installed:          No
AC Charger Information:
Connected:          Yes
ID:          0x0921
Wattage (W):          60
Family:          0x0085
Serial Number:          0x00070622
Charging:          No
Are these stats normal?
Thanks in advance!

I keep my MBP plugged into mains about 90% of the time - and on battery about 10%. I seldom let it run down below a 30% charge and my battery is still at 98% battery health after 8 months.
Just be certain that you do run on battery occasionally, if you're plugged into mains the majority of the time. At least twice a month, let your battery drain down to 10-40% and then plug your computer back in. This will keep the ions moving and give you a healthy battery for years to come.
Clinton

2012 Macbook Pro Retina battery loses charge quickly.

Any guesses or fixes? I do not abuse it in any way. Randomly in the last three days the battery has had about half the power it normally does. All I'm currently running on it are Firefox and iTunes, everything else is and has been closed since I noticed the problem.

Hello JLaT,
I definitely understand your concern with your battery on your MacBook Pro. I found a couple of resources that I think might help with this.
The first thing I recommend is resetting the System Management Controller (SMC) when the battery does not appear to be charging properly.:
Resetting the SMC on portables with a battery you should not remove on your own
Note: Portable computers that have a battery you should not remove on your own include MacBook Pro (Early 2009) and later, all models of MacBook Air, and MacBook (Late 2009).
Shut down the computer.
Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.
On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
Release all the keys and the power button at the same time.
Press the power button to turn on the computer.
Note: The LED on the MagSafe power adapter may change states or temporarily turn off when you reset the SMC.
You can find the full article here:
Intel-based Macs: Resetting the System Management Controller (SMC)
http://support.apple.com/kb/HT3964
I also recommend reviewing the following resources for more information about prolonging your battery life:
Mac notebooks: All about batteries
http://support.apple.com/kb/HT1446
Apple Batteries - Notebooks
http://www.apple.com/batteries/notebooks.html
Thank you for using Apple Support Communities.
Best,
Sheila M.

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Hi,
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It's normal. Read the threads in the "More Like This" column. Or call Apple Care. You're still under warranty.

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Energy Saver - If it's not there, read your user manual and the Help menu.

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