|Oct 23, 2013, 02:16 PM||#1|
13-Inch 2013 MacBook Air Gets Up to 15 Hours of Battery Life With Mavericks
In his lengthy and ultra-detailed review of Mavericks, John Siracusa of Ars Technica conducts battery benchmark tests to measure Mavericks' power saving features on both a 2007 MacBook Pro and a 2013 13.3-inch MacBook Air.
While both systems saw notable battery gains going from Mountain Lion to Mavericks, the 2013 MacBook Air in particular saw impressive improvements of up to 30 percent, lasting for more than 15 hours in some instances.
For his battery tests, which were conducted using OS X 10.8.5 and the GM build of Mavericks, Siracusa created a light Web browsing and text-editing automation script, including websites that used Flash. In his tests, battery life varied significantly, but provided, on average, an increase of two hours of work time.
While Timer Coalescing bundles low-level operations into a single batch action that reduces CPU utilization by up to 72 percent, App Nap cuts down on the power usage of apps that are not running in the foreground, reducing their overall power draw by up to 23 percent. Compressed Memory also works in conjunction with these two features, compacting the least used processes so less time is spent reading and writing virtual memory swap files on disk, which improves power consumption.
There's also a new power saving feature built directly into Safari, called Power Saver. With Power Saver, Safari intelligently detects plug-in content playing in the margins of a website and pauses it, preserving battery life.
During Apple's October 22 event, Apple's senior vice president of Software Engineering Craig Federighi also highlighted Mavericks' battery saving capabilities on the new 13-inch MacBook Air, noting that the operating system provides an extra hour of web browsing and an hour and a half of extra video time.
Mavericks is available for free from the Mac App Store and is a one-step update for all Mac users running OS X Snow Leopard and above. It can be installed on most computers produced after 2007. As of this morning, total Mavericks adoption hovered at approximately seven percent.
Article Link: 13-Inch 2013 MacBook Air Gets Up to 15 Hours of Battery Life With Mavericks
|Oct 23, 2013, 02:19 PM||#6|
Thats so crazy!
I was amazed when my MBA could do 11-12 hours, now it "can do 15"
Thats boggled my mind.
2013 MBA, i5/256/8 with a Samsung Display
2011 Mac Mini 2.3GHz i5, Focusrite 2i2, White Audioengine A2, Blue Snowball Mic
iToys: White iPhone 5, White iPad 3, ATV3, Time Capsule, Airport Express.
|Oct 23, 2013, 02:20 PM||#9|
Wow. The 13" MacBook Air (Mid 2013) is a keeper!
13" MacBook Air (Mid 2013) + Dual 27" Thunderbolt Display
15" MacBook Pro with Retina Display (Mid 2012) + 24" LED Cinema Display
TV | Time Capsule | iPod | iPhone | iPad Air/mini
|Oct 23, 2013, 02:21 PM||#13|
Getting nearly 45 additional minutes of battery time out of a 2007 Macbook Pro is pretty impressive.... And people say Apple doesn't support old hardware!
Macbook Pro w/ Retina Display 2012
iPad Air 128GB w/ LTE
|Oct 23, 2013, 02:22 PM||#16|
How much of an imrpovement did the 2012 15" retina macboks get?
|Oct 23, 2013, 02:24 PM||#22|
Wow - I keep trying to convince myself that I don't NEED a new 13" mba, but dang, that is some crazy long battery life. My current 2011 13" base model, with a battery at 81% health, is getting almost 5.5 hours on Mavericks (I was getting just over 3 on ML), which isn't bad, but to almost triple that amount would be fantastic. I could travel without a charger, the same way I do with my iPad now.
Sort of makes having an iPad with 10 hours of battery life seem a lot less desirable - at least to me it is.
|Oct 23, 2013, 02:25 PM||#24|
Yeah, that's pretty astounding (I realize there's a notable amount of deviation depending on the exact apps/services running). Even with -20-30%, this is to the point where I could meet a couple of my partners outside the office for an all day-er, and not have to worry about bringing a power supply or being near an outlet.
"It is not daily increase but daily decrease; hack away the unessential." ~Bruce Lee
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