Battery life improvements?

SVTmaniac

macrumors 6502
Original poster
Jan 30, 2013
351
345
I watched the keynote live, but didn't hear any mention of any battery life improvements with Yosemite. I know when Mavericks was announced, longer battery life was one of the big things they mentions.

Does anyone know if Yosemite will be bringing any more battery life improvements? As long as it doesn't actually hurt battery life I'm happy, but any improvements are always welcome.
 

Dulcimer

macrumors 6502a
Nov 20, 2012
781
222
I can only recall the part where Craig mentioned that HTML5 video playback will last 2 hours longer at 1080p (Netflix) in Safari. With the exception of this, I don't think there'll be any major battery improvements. That was a Maverick's thing ;)
 
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SmOgER

macrumors 6502a
Jun 2, 2014
658
36
Not sure if the OS updater did some cleaning up and this is the result of it, but I can definitely see some battery life improvements. It may not be true and I maay be completely off, but it looks like this new OS has some kind of sleeping/lazy screen feature to save the power. When you don't scroll in Safari for some time, it decreases the focus on it, so when you decide to scroll again, for a second it stutters abit, then "wakes up" and scrolls again smoothly.
 
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cookies!

macrumors 6502
Jul 3, 2011
456
131
I'm confident that there will be some battery life improvement brought by a more optimized backend in the OS, but for DP1, I'm noticing severely impacted battery life (from 12 to 4 hours) at the moment. I'm going to leave the thing on all night to make sure it finishes indexing (I can't tell if it still is) and then make the decision to downgrade after that.
 
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iJcaP

macrumors 6502
Jun 19, 2010
295
22
So far on beta battery life has been quite terrible. REMEMBER IT'S BETA- so no surprise. But I hope as betas progress battery life does improve. I have a 2013 Macbook Air and on Mavericks it lasted around 11 hours. with Yosemite- below 7 hours.

How's the battery for everyone else (Mavericks vs. Yosemite)
 
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impulse462

macrumors 68000
Jun 3, 2009
1,940
2,537
So far on beta battery life has been quite terrible. REMEMBER IT'S BETA- so no surprise. But I hope as betas progress battery life does improve. I have a 2013 Macbook Air and on Mavericks it lasted around 11 hours. with Yosemite- below 7 hours.

How's the battery for everyone else (Mavericks vs. Yosemite)
Yep, I second this. I have a 2013 Air and I was getting 12-13 hours of battery life on Mavericks. So far with Yosemite I have around 7 hours.
 
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iJcaP

macrumors 6502
Jun 19, 2010
295
22
Yep, I second this. I have a 2013 Air and I was getting 12-13 hours of battery life on Mavericks. So far with Yosemite I have around 7 hours.
Literally ecstatic to hear I'm not the only one! Thanks for the response!
 
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Mr. Retrofire

macrumors 603
Mar 2, 2010
5,039
470
www.emiliana.cl/en
So far on beta battery life has been quite terrible. REMEMBER IT'S BETA- so no surprise. But I hope as betas progress battery life does improve. I have a 2013 Macbook Air and on Mavericks it lasted around 11 hours. with Yosemite- below 7 hours.

How's the battery for everyone else (Mavericks vs. Yosemite)
DPs contain always a lot of debug code. That makes the apps/frameworks slower and requires additional energy and CPU cycles.

Wait for the GM version!
 
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Fusilero

macrumors newbie
Jun 3, 2014
13
0
London
Battery life has pretty much halved (rMBP Late 2013) but I'm sure it will keep improving over the coming months. After all this is only DP1.
 
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TexasChemE

macrumors 6502a
Oct 28, 2011
766
8
Searched for this too see if everyone else was experiencing this as well. The DP is destroying my Late 2013 rMBP's battery.
 
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JohnDoe98

macrumors 68020
May 1, 2009
2,488
99
On Mavericks I got about 11-12 hours battery life.

On DP1 about 4-5 hours.

DP2 9-10 hours.

I noticed in DP1 Safari was wasting a ton of power and was extremely unstable, often crashing my entire OS and forcing a reboot. In DP2, so far, it seems considerably improved. All this is expected of course.
 
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0000757

macrumors 68040
Dec 16, 2011
3,894
849
I'm running a 13-inch MacBook Pro manufactured in October of 2011. My battery's gone through 942 cycles and according to Battery Health I'm at 91% in terms of capacity.

With DP1 I noticed my battery would drain A LOT faster than with Mavericks and DP2 it's improved but Mavericks still had optimal performance.

I'm using Yosemite as my only OS (Because I'm a risk-taker...also everything important of mine is on externals or in the cloud and what I save on my computer isn't much important stuff) but I might consider jumping down to Mavericks...or doing a clean install when the Public Beta is available.
 
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Serban

Suspended
Jan 8, 2013
5,159
926
So people who has macbook pros will get about 4-5h of battery ? oh my god we are back to stone age :D
 
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