Mountain Lion OS X 10.8.1 Improves Battery Life Somewhat
Earlier this month, Arstechnica had reported that many users had found a significant decrease in battery life after upgrading to OS X 10.8 (Mountain Lion).
Ars writer Chris Foresman, after extended testing, discovered that the battery life of his Retina MacBook Pro review unit dropped 38% from its previous 8-hours.
The same findings were reported by many others in Apple's own support forums, and there were some reports that the development versions of OS X 10.8.1 may have addressed this issue.
MacObserver has conducted battery life tests on the final release build of OS X 10.8.1 to see if there had indeed been any improvement. Their testing process included using an Automator script that launched several apps and navigated to websites. The script would cycle this process continuously. The tests were run on a 2011 Macbook Pro. Here are their findings:
First, they were able to confirm the drop in battery life when going from OS X 10.7.4 to OS X 10.8. The drop they measured was 33% (2 hours and 10 minutes) just from upgrading OS X to 10.8. The "No WiFi Icon" was a "fix" of suggested by one of their readers, but showed no appreciable effect. They did find that OS X 10.8.1 (beta and release) builds did improve the battery life stats, adding as much as 52 minutes in their testing. The overall numbers, however, are still well under their battery life measurements in OS X 10.7.4 (Lion).
Apple is currently testing OS X 10.8.2, but there's been no word if that build helps further improve battery times back towards OS X Lion levels.
Popular Stories
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices.
Below, we recap key changes rumored for the iPhone 17 Pro models as of May 2025:
Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone X ...
With the design overhaul that's coming this year, Apple plans to rename all of its operating systems, reports Bloomberg. Going forward, iOS, iPadOS, macOS, tvOS, watchOS, and visionOS will be identified by year, rather than by version number. We're not going to be getting iOS 19, we're getting iOS 26.
iOS 26 will be accompanied by iPadOS 26, macOS 26, tvOS 26, watchOS 26, and visionOS 26...
The popular messaging app WhatsApp has teased a long-awaited iPad app, which would be offered alongside its existing iPhone and Mac apps.
The official WhatsApp account on X today reacted with an eyes emoji to a post saying that WhatsApp should release an iPad app. This could be a hint that Meta is gearing up to release WhatsApp for iPad, which has already been available for beta testing via...
WWDC 2025 is just two weeks away as of today, with Apple's opening keynote scheduled for Monday, June 9 at 10 a.m. Pacific Time.
During the keynote, Apple is expected to announce iOS 19, iPadOS 19, macOS 16, watchOS 12, tvOS 19, visionOS 3, and other software updates, along with new Apple Intelligence features. In some years, there are also hardware announcements at WWDC, but there are no...
Apple has scrapped some of the features that it had planned for its rumored smart home robot, according to Bloomberg's Mark Gurman.
"I'm told that Apple has pulled some bolder features from the device that could reappear in subsequent models," wrote Gurman, in his Power On newsletter this week. However, he did not reveal any of the specific features that were pulled.
Apple made this...
Apple is reportedly preparing to implement significant iPhone hardware redesigns each year for the next three generations.
According leaks from the Chinese supply chain disclosed by Weibo user "Digital Chat Station," Apple plans to carry out a series of phased industrial design changes affecting different parts of the iPhone across three consecutive years: 2025, 2026, and 2027. The changes...
Apple had plans to offer a Starlink-like satellite home internet service in collaboration with Boeing, The Information reports.
Starting in 2015, Apple held discussions with Boeing about "Project Eagle," a plan to launch a service to provide wireless internet services to iPhones and homes. The companies would have launched thousands of satellites into orbit around the Earth to beam internet...
