How is battery life after updating to Yosemite?

jpadhiyar

macrumors regular
Original poster
Oct 15, 2012
165
20
Ahmedabad, India
Am I the only one experiencing fast battery drain after updating my Macbook Air with Yosemite?

How is battery life of your Macbook after Yosemite update???
 

p3ntyne

macrumors 6502
Jan 10, 2014
406
3
Sydney, Australia
Am I the only one experiencing fast battery drain after updating my Macbook Air with Yosemite?

How is battery life of your Macbook after Yosemite update???
You're probably not the only one but with DP2, it is pretty much the same as Mavericks. I have been using Photoshop, Illustrator and downloading Office for Mac + Premiere Elements 12 for about 3 and a half hours with 67% remaining.

Battery life was terrible in DP1 though.
 

PsykX

macrumors 6502a
Sep 16, 2006
933
347
Am I the only one experiencing fast battery drain after updating my Macbook Air with Yosemite?

How is battery life of your Macbook after Yosemite update???
Well the battery icon has been redesigned to be much longer than in Mavericks, which means that you gain about 20% by installing Yosemite. :D

In all seriousness though, I haven't really tested it on my 2009 MBP, because it was too slow to use and would simply end up frustrating me. I installed DP2 yesterday on it, it's better but I can still see a few red processes that affect my performance largely. Once this is gone, I might be able to test it out. If anything, battery performance should be <= what you see in Mavericks, because they haven't worked it out in Yosemite like what they did in Mavericks (Time Coalescing).
 

mmomega

macrumors 68040
Dec 30, 2009
3,562
1,733
DFW, TX
Battery life has improved from DP1 to DP2 but it still isn't where it was in Mavericks.

I have not timed it yet but my battery indicator would show 13 hrs or more in Mavericks whereas it shows 9 and under on Yosemite.

Did we get new emojis ?:eek:
 

jeanre

macrumors member
Jun 5, 2014
38
1
Remember the is a lot of debug code in the background so don't expect awesome battery life
 

haravikk

macrumors 65816
May 1, 2005
1,494
21
That's great. However, it's draining so fast in my latest MBA... :(
Have a look in Activity Monitor; a number of people have noticed the UserEventAgent process eating up huge amounts of processor time, which will lead to slow downs and more power consumption (in this case, battery consumption). If you notice this process misbehaving, then you should be able to quit or force quit it from Activity Monitor to get things back to normal, but before you do you should profile the process and send the resulting report to Apple at http://bugreport.apple.com so they can get this fixed.

For any beta I'd recommend enabling a CPU monitor, there is one in Activity Monitor, as it will show you if you're suddenly seeing high CPU usage, at which point you can have a look in Activity Monitor to see if you can find the culprit.
 

jpadhiyar

macrumors regular
Original poster
Oct 15, 2012
165
20
Ahmedabad, India
Have a look in Activity Monitor; a number of people have noticed the UserEventAgent process eating up huge amounts of processor time, which will lead to slow downs and more power consumption (in this case, battery consumption). If you notice this process misbehaving, then you should be able to quit or force quit it from Activity Monitor to get things back to normal, but before you do you should profile the process and send the resulting report to Apple at http://bugreport.apple.com so they can get this fixed.

For any beta I'd recommend enabling a CPU monitor, there is one in Activity Monitor, as it will show you if you're suddenly seeing high CPU usage, at which point you can have a look in Activity Monitor to see if you can find the culprit.
That's great piece of advice. However, after updating to beta 3, things seems bit normal.
 

Michael Goff

Suspended
Jul 5, 2012
13,329
7,415
I'm getting about 5 hrs playing 720p video on my MBA.

That seems about normal, compared to Mavericks.
 

usajag2015

macrumors newbie
Mar 29, 2011
2
0
Battery life is significantly worst than Mavericks

My battery life has been fairly abysmal. But everything else seems to be working as good if not better than Mavericks.
 

Motawa

macrumors 6502
Jun 24, 2012
354
248
It sucks

I am getting only 4-5 hours on macbook pro late 2013 13 inch. Battery has only 20 cycles and 97% design capacity...
 

ABC5S

Suspended
Sep 10, 2013
3,395
1,646
Florida
I've been getting 10 hours. You probably have spotlight reindexing.
This might be true. Got lousy battery life upon first install of Yosemite PB5, but now after a full day and a half, I'm getting about 10 hours or so.
 

TechGod

macrumors 68040
Feb 25, 2014
3,177
914
New Zealand
This might be true. Got lousy battery life upon first install of Yosemite PB5, but now after a full day and a half, I'm getting about 10 hours or so.
I hit the 11hrs yesterday. 3/4 brightness and no keyboard brightness on.

3 tabs on Safari, 6 in Opera and a pages document open.
 
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