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MBA 2011 increased battery with Mavericks?
- Thread starter Poly
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You might see the few tweaks in Mavrix help (when it's been fine-tuned) but in all seriousness, older macs won't see anything significant. The new Haswell processors will do most of that work.
I haven't noticed anything myself but have no way to quantify this universally as all battery usage is user-dependant and subjective at best.
I haven't noticed anything myself but have no way to quantify this universally as all battery usage is user-dependant and subjective at best.
Mavericks is better on battery life on these models.
Battery health itself shouldn't be impacted one way or the other.
Battery health itself shouldn't be impacted one way or the other.
I think it's more efficient, and puts tasks to sleep when they aren't being opened.
I forgot but I think the way it utilizes CPU was re-done in Mavs, no?
I forgot but I think the way it utilizes CPU was re-done in Mavs, no?
Yeah.
http://www.apple.com/osx/preview/advanced-technologies.html
And compressed memory reduces the SSD/HDD power consumption (OS X uses less swap files for the virtual memory).
Your link refers to Mavericks being tested on a Haswell processor:
Testing conducted by Apple in May 2013 and June 2013 using production 1.8GHz Intel Core i5-based 13-inch MacBook Air systems
Again, the OP is talking about a 2011 machine. The theory is sound but I don't think you'll see that much magical improvement on older hardware. That's been my experience anyway. It does go hand-in-hand with the newer Intel CPU's though.
I noticed an improvement with battery life between ML and Mavericks with the same Machine, a rMBP from 2012, with an Ivy Bridge CPU.
So yes, the gain is there even with older CPUs.
But with Haswell, it'll probably be even better.
So yes, the gain is there even with older CPUs.
But with Haswell, it'll probably be even better.
And it may very well be however, we'll have to wait for somebody to quantify that gain (if any) on generic processors and do some official benchmarks once 10.9 is released. And those will be forthcoming.
But for now it's irresponsible to provide definitive testimonials based on one's "gut feel". (Mine included). After all, there's a reason why Apple references all those Haswell footnotes when touting their claims.
I'm not really into the OS X update scheme....maybe you can tell me an estimated release? Are there any rumors?
Actually, the Haswell i5 is a 1.3 GHz CPU. The tested model is likely an Ivy Bridge 2012 MBA model, which came stock with a 1.8 GHz i5 CPU.
???
Why would current benchmarks posted on Apple's site be based on a chip they no longer use in the MBA?
???
Why would current benchmarks posted on Apple's site be based on a chip they no longer use in the MBA?
Your guess is as good as mine. I'm just pointing out that the Haswell specs don't match up to the specs they quote as the testing model.
Yes, you'll see an improvement. I was running the first few Mav dp's and saw a significant increase in battery life on my '11 13" mba. It's clear the new os is better at managing resources and I look forward to the public release as my mba has a steadily declining battery health and could use any savings I can get for daily use life.
Apple can replace your MBA or MBP battery:
http://support.apple.com/kb/index?page=servicefaq&geo=United_States&product=Macnotebooks
(select Battery Replacement)
Not at all. Mavericks does more in less time via timer coalescing. See also:
http://arstechnica.com/apple/2013/06/how-os-x-mavericks-works-its-power-saving-magic/
Yep, I know that. I even tried the "my battery is below 85% in less than 300 cycles after a year of use" at an Apple store and they offered to "charge me for a replacement battery". Gee, thanks for the generous offer, I thought. I'll live with it til I can't get by, before popping for a new one.
That a good result. How did you get a battery health rating? Also do you usually use your macbook plugged in?
I use Coconut Battery. It says 89% health for my 22months old MBA 13" mid2011.
Actually I always let the battery drain to 2-5% and then plug it in to charge back up to 100%. I have to charge the battery every second day with my average usage. So i only use it while charging when i need it of course but i unplug it at 100%. So i don't use it like a desktop where you let it plugged all day, no matter that you already have 100% battery.
Is that bad? Or is it good how i do it?