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View Full Version : so...is Apple ever going to fix this draining battery issue




wassup121
Dec 24, 2012, 01:15 PM
Still very annoyed that my 2011 13" MBA with ML battery drains so unbelievable fast.

I was seriously at 70% about 15min ago just browsing the forums and i'm already at 63%

Complete hogwash! Waiting for a patch Apple....:mad::mad::mad:



GGJstudios
Dec 24, 2012, 01:16 PM
Still very annoyed that my 2011 13" MBA with ML battery drains so unbelievable fast.

I was seriously at 70% about 15min ago just browsing the forums and i'm already at 63%
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.

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)

53x12
Dec 24, 2012, 01:23 PM
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.

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)


Wow you sure are quick GGJ!

OP, as GGJ pointed out, there are many factors that influence the battery life of the MBA. I also have a 13in MBA and have no problems getting ~7.5hrs on a charge.

Some factors to think about:

-Do you have bluetooth on?
-Do you have screen set to max brightness?
-Do you have a strong wifi signal or does your computer have to search for a stronger signal?
-Do you frequent websites with a lot of flash?
-Do you download a lot of files while surfing?


There are many factors that go into how long your battery will last.

Mrbobb
Dec 24, 2012, 01:39 PM
If ur still on 10.8.0 should immediately update to 10.8.2.

Maniraja
Dec 24, 2012, 02:17 PM
Expect to be either ignored or be bombarded with people rushing to Apple's defence stating the bleeding obvious. My battery was rubbish even on the latest 10.8.2 version. First time I've had a problem with Apple since ditching PC's ten years ago. My battery life went from a 7 hour battery life doing the normal things I do to a 2.5 hour battery life doing the same things. This happened exactly the same time I upgraded to 10.8. I tried all the things I could find like those battery reset things. It was just like having a PC, spending more time trying to get the machine to work instead of using the bloody thing. Any way to cut a long story short I did a fresh install by downloading the OS onto a USB drive and installing it from there. This worked. I hope it works for you if you try it. It isn't exactly straight forward so check out some guides on you tube before having a go. Good luck.

Mrbobb
Dec 24, 2012, 02:49 PM
Reloading from clean is always a good thing to try. When I was with windows I had a procedure where right after a clean install, I would make an IMAGE out of it, and anything happen after that am able go reload and back to a known-to-be-good state in 15 mins.

GGJstudios
Dec 24, 2012, 03:05 PM
My battery life went from a 7 hour battery life doing the normal things I do to a 2.5 hour battery life doing the same things.
I challenge that. Your battery life dropped because there was an increase in power demands. You simply need to isolate the source of the higher power demand. I've seen too many of these baseless claims that battery life suddenly dropped significantly doing the same thing. Such claims are absolutely false.

2IS
Dec 24, 2012, 08:52 PM
I challenge that. Your battery life dropped because there was an increase in power demands. You simply need to isolate the source of the higher power demand. I've seen too many of these baseless claims that battery life suddenly dropped significantly doing the same thing. Such claims are absolutely false.

I wonder whats more baseless, these claims or your claim that these claims are baseless?

racer1441
Dec 24, 2012, 10:10 PM
I challenge that. Your battery life dropped because there was an increase in power demands. You simply need to isolate the source of the higher power demand. I've seen too many of these baseless claims that battery life suddenly dropped significantly doing the same thing. Such claims are absolutely false.

Bingo. Had a similar issue, ended up being a printer software eating CPU cycles like a MoFo.

Acorn
Dec 25, 2012, 12:20 AM
my battery life on my 2010 macbook pro now on mountain lion doesnt come close to the battery life it had with snow leopard. it also takes a stupid amount of time just to shut down compared to snow leopard as well.

the battery life on my 2012 macbook air running mountain lion isnt bad. however i run ultra low brightness ( 1 notch) so it has helped alot. im not sure about no 7 hours though.

my 2010 macbook pro running snow leopard was the best. i easily got 8+ hours with wifi on but low brightness.

Maniraja
Dec 25, 2012, 03:47 AM
I challenge that. Your battery life dropped because there was an increase in power demands. You simply need to isolate the source of the higher power demand. I've seen too many of these baseless claims that battery life suddenly dropped significantly doing the same thing. Such claims are absolutely false.

I was delighted with the battery life of my 9 month old MacBook Air. I was in a library in September no mains lead and I updated to 10.8 when it was released. Fired it up and all worked wonderfully as always. That is until I glanced at the battery %. It was down way below what I was expecting to see. Before my eyes the battery level dropped like a stone and an afternoon session that would end with 50% battery life was cut short as my Air shut down flat as a pancake. My battery life did not return at 10.8.1 or 10.8.2. It did return when I installed 10.8.2 from a USB drive. You can call be a liar all you like but that's what happened.

Bob Coxner
Dec 25, 2012, 11:32 AM
Wow you sure are quick GGJ!

OP, as GGJ pointed out, there are many factors that influence the battery life of the MBA. I also have a 13in MBA and have no problems getting ~7.5hrs on a charge.

Some factors to think about:

-Do you have bluetooth on?
-Do you have screen set to max brightness?
-Do you have a strong wifi signal or does your computer have to search for a stronger signal?
-Do you frequent websites with a lot of flash?
-Do you download a lot of files while surfing?


There are many factors that go into how long your battery will last.

MBA 13" 2011. Bluetooth off, located about 5 feet from the router, no downloading while surfing. I do have the screen set to max brightness.

I got 6-7 hours when I first bought it. Now I'm lucky to get 3 hours with ML. The battery itself seems to be in good shape. Coconut Battery says 43 cycles and 93% capacity remaining. Sure looks software related to me.

TheRealDamager
Dec 25, 2012, 12:50 PM
Screen brightness is one of the top battery killers - I'm surprised you ever saw 6-7 hours on max brightness.

krravi
Dec 25, 2012, 03:14 PM
I challenge that. Your battery life dropped because there was an increase in power demands. You simply need to isolate the source of the higher power demand. I've seen too many of these baseless claims that battery life suddenly dropped significantly doing the same thing. Such claims are absolutely false.

Are you implying that no matter what,Apple can make no mistake(Bad battery, software glitch..) and it's *always* the user's fault? How about giving someone the benefit of doubt?

Mrbobb
Dec 25, 2012, 03:45 PM
Bingo. Had a similar issue, ended up being a printer software eating CPU cycles like a MoFo.


Exactly.

Many times is not that the user is doing more, is that the user at some point downloaded an app, updated something and that something is spanning a background task that a normal user doesn't know nor care in most circumstances until, uh? how come my battery...

I wish Apple has a built-in power use analyzer by processes, so one can look at at an history and compare before and after.

Not saying THIS is that case, Apple is not perfect <gasp! blasphemy>

velo
Dec 25, 2012, 08:39 PM
There's a Mountain Lion bug that has Dock running at over 100% cpu. When I hear or see the fans running up I check activity monitor. That seems to be the culprit for me.

GGJstudios
Dec 26, 2012, 09:07 PM
MBA 13" 2011. Bluetooth off, located about 5 feet from the router, no downloading while surfing. I do have the screen set to max brightness.

I got 6-7 hours when I first bought it. Now I'm lucky to get 3 hours with ML. The battery itself seems to be in good shape. Coconut Battery says 43 cycles and 93% capacity remaining. Sure looks software related to me.
Exactly. It's not the OS itself. It's most likely an app or process that is consuming system resources and drawing more power. You just need to troubleshoot to find what it is.
Are you implying that no matter what,Apple can make no mistake(Bad battery, software glitch..) and it's *always* the user's fault? How about giving someone the benefit of doubt?
No, I'm not implying that. There have been cases of defective batteries, although such cases represent a very small fraction of Mac notebooks. It's also not the user's fault. It's a matter that something is drawing more power, causing shorter battery life. Rather than blame the OS, it takes a bit of troubleshooting to isolate the issue, which is almost always a case of settings or apps running that the user wasn't aware of. Blindly accusing or defending Apple or the OS isn't going to solve the problem. Launching Activity Monitor and gathering facts is a more prudent approach.
There's a Mountain Lion bug that has Dock running at over 100% cpu. When I hear or see the fans running up I check activity monitor. That seems to be the culprit for me.
This is a good example of what I'm talking about. There was a specific process that was running amok. Once that is identified and corrected, battery life should return to normal.

Johnny Alien
Dec 27, 2012, 07:02 AM
MBA 13" 2011. Bluetooth off, located about 5 feet from the router, no downloading while surfing. I do have the screen set to max brightness.

I got 6-7 hours when I first bought it. Now I'm lucky to get 3 hours with ML. The battery itself seems to be in good shape. Coconut Battery says 43 cycles and 93% capacity remaining. Sure looks software related to me.

Is Coconut battery correct? When did you buy it? It just seems odd that a year old computer only went through 43 cycles.

Bob Coxner
Dec 27, 2012, 11:45 AM
Is Coconut battery correct? When did you buy it? It just seems odd that a year old computer only went through 43 cycles.

It's plugged in most of the time.

JamesJesney
Dec 28, 2012, 02:46 AM
It's plugged in most of the time.

Got to say leaving it plugged in all the time won't do the battery any favours, I used to leave my windows netbook plugged in and the battery went from 2-3 hours down to 7 minutes xD

wolfpuppies3
Dec 28, 2012, 02:42 PM
OP - There is no "issue" for Apple to "fix." It is entirely dependent on you and your usage of your machine.

wassup121
Dec 30, 2012, 12:26 PM
MBA 13" 2011. Bluetooth off, located about 5 feet from the router, no downloading while surfing. I do have the screen set to max brightness.

I got 6-7 hours when I first bought it. Now I'm lucky to get 3 hours with ML. The battery itself seems to be in good shape. Coconut Battery says 43 cycles and 93% capacity remaining. Sure looks software related to me.


this is basically me too. except Coconut says i have 80 cycles, 91% capacity, and the mac is only 7 months old.

I haven't changed anything i do on my computer (pre Mountain Lion and post). Just the incredible battery life drop is annoying. Going from 6 hours to 3 of normal web surfing, no downloading or movie watching...

jknight8907
Dec 31, 2012, 07:01 PM
OP - There is no "issue" for Apple to "fix." It is entirely dependent on you and your usage of your machine.

So when I get 5 hours battery life on average, then update to Mountain Lion and now get 3 hours doing the exact same tasks, it's MY fault? :confused:

GGJstudios
Dec 31, 2012, 07:06 PM
So when I get 5 hours battery life on average, then update to Mountain Lion and now get 3 hours doing the exact same tasks, it's MY fault? :confused:
How exactly did you verify that you're running the exact same tasks?

jknight8907
Dec 31, 2012, 07:10 PM
How exactly did you verify that you're running the exact same tasks?

If the OS added new or additional processes that run in the background and burn the battery, that is not my fault and in fact is the whole point of complaint. If you mean programs that I have open, well, when Outlook and Chrome are usually all I ever have open, it's not hard to see I'm using it in exactly the same way before & after.

GGJstudios
Dec 31, 2012, 07:11 PM
If the OS added new or additional processes that run in the background, that is not my fault. If you mean programs that I have open, well, when Outlook and Chrome are usually all I ever have open, it's not hard to see I'm using it in exactly the same way before & after.
So decide what default processes you don't want and disable or eliminate them. The fact is your battery drain will not be significantly different if you are, indeed, running the exact same tasks.

If you're having performance issues, this may help:
Performance Tips For Mac OS X (http://forums.macrumors.com/showpost.php?p=13817005&postcount=2)

jknight8907
Dec 31, 2012, 07:15 PM
So decide what default processes you don't want and disable or eliminate them. The fact is your battery drain will not be significantly different if you are, indeed, running the exact same tasks.

If you're having performance issues, this may help:
Performance Tips For Mac OS X (http://forums.macrumors.com/showpost.php?p=13817005&postcount=2)

SystemUIServer is the only suspicious task running, bouncing between 4% and 55% CPU usage. Everything else is stable and very low CPU usage.

GGJstudios
Dec 31, 2012, 07:17 PM
SystemUIServer is the only suspicious task running, bouncing between 4% and 55% CPU usage. Everything else is stable and very low CPU usage.
And you're looking at All Processes, not My Processes, right? If so, that sounds like it may be your culprit.

jknight8907
Dec 31, 2012, 07:28 PM
And you're looking at All Processes, not My Processes, right? If so, that sounds like it may be your culprit.

Correct. I did some quick research on that task and found some people link it to the status bar buttons, specifically the Time Machine shortcut. I turned off the time machine shortcut and SystemUIServer stays below 7% now. Looks like 'Google Chrome Renderer' is another big one when looking at webpages with lots of photos, and may turn out to be the truly big issue over SystemUIServer.

Maniraja
Jan 2, 2013, 06:39 PM
How exactly did you verify that you're running the exact same tasks?

For me it was three months from the very minute I uploaded 10.8 (and 10.8.1.and 10.8.2). The things I tried included deleting printer drivers, install from the app store, removing vodafone drivers, pram and that other thing resets, and much more, everything I could find I tried. I live up in the mountains in Southern Europe away from Broadband so it wasn't until I found myself back in the UK in December that I tried the one option left, a clean install from a USB stick drive. Everything back to normal immediately. The day I installed 10.8 I didn't install anything else as it was during my rare visit to the library. Straight away the battery was rubbish and straight away after an install from the USB stick drive three months later I got a decent computer back.

JonLa
Jan 4, 2013, 01:28 PM
My Air is a 2010 C2D with 4gb of ram - the battery life isn't great and at times it seems to fly down when using it on battery. I've tried using the steps in this thread to diagnose what is causing the drain, if there is one, but no joy. I suspect a clean install is my next route, but I need to work out how to restore the settings of certain apps, like itunes, and wipe others...