Mac laptop owners report shortened battery life after Mountain Lion upgrade
- 06 August, 2012 17:44
Apple is investigating reports of shorter battery life on Mac laptops that customers have upgraded to OS X Mountain Lion, according to the company's support forum.
Owners of MacBooks, MacBook Pros and MacBook Airs began reporting problems shortly after Mountain Lion launched on July 25. The longest thread on Apple's discussion forum thus far kicked off on July 31. As of Monday, it included more than 460 messages that had been viewed nearly 28,000 times. Both numbers are high for an Apple support thread.
According to user reports, battery consumption is considerably faster than before the upgrade to Mountain Lion, with a resulting shorter battery lifespan. Others claimed that even after a full charge, their laptops were reporting significantly less time remaining compared to when they were running OS X Lion or Snow Leopard.
"Bought a 13[-in MacBook] Air with Lion installed, and when fully charged, and nothing running it reported 6 hours 45 minutes remaining," said someone identified as "Salty777" in a message posted to the forum today. "After upgrading to Mountain, in exactly the same condition, it's reporting 4 hours 30 minutes remaining."
Others said their battery life had been slashed as much as 50% after installing Mountain Lion.
Some users said that they had been contacted by Apple's technical support, who asked that they submit Activity Monitor logs and other information for examination.
"They sent me a data capture app which records background activity that they will use to find the issue," noted "stevo_c" in a message early today. "I can confirm this is definitely a software (OS) issue as the guy that was dealing with me said that an update will be issued via the app store as soon as they can work a fix."
An opt-in poll conducted by the Apple-centric blog 9to5Mac.com said over a third of the 1,800 who took part reported battery issues after upgrading to Mountain Lion.
Apple has faced battery life complaints before, most recently last fall with the then-new iPhone 4S, which owners said was racing through its power supply at a prodigious rate.
If the problem can be addressed with a software update, as "stevo_c" said, that update could appear this month. Last year, Apple shipped the first update for Lion, OS X 10.7.1, four weeks after the operating system went on sale; in 2009, Apple was even faster, releasing 10.6.1 just 12 days after the debut of Snow Leopard.
Unlike Microsoft, Apple does not keep a regular update schedule for its operating system, and does not alert users before it ships bug fixes and security patches.
Apple released OS X Mountain Lion on July 25. It can be downloaded from the Mac App Store for $19.99.
Gregg Keizer covers Microsoft, security issues, Apple, Web browsers and general technology breaking news for Computerworld. Follow Gregg on Twitter at @gkeizer, on Google+ or subscribe to Gregg's RSS feed. His email address is firstname.lastname@example.org.
Read more about macintosh in Computerworld's Macintosh Topic Center.
Join the CIO Australia group on LinkedIn. The group is open to CIOs, IT Directors, COOs, CTOs and senior IT managers.
- Cost Savings Through Virtual Patching
- FAQs: Small and Midsize Business Guide to Mobile Security
- Webroot® SecureAnywhere™ Business - Endpoint Protection Technocal Overview
- A Forrester Consulting Thought Leadership Paper - The State Of Endpoint Protection
- Proven Value with the Oracle Database Appliance
Why change management doesn’t work
Larry Page wants to see your medical records
Dual-Persona Smartphones Not a BYOD Panacea
After two-year hiatus, EFF accepts bitcoin donations again
CIOs struggle to deliver timely mobile business apps: survey
Advanced Targeted Attacks
The new threat landscape has changed. Cybercriminals are aggressively pursuing valuable data assets, such as financial transaction information, product design blueprints, user credentials to sensitive systems, and other intellectual property. Simply put, the cyber offense has outpaced the defensive technologies used by most companies today. Find out more on how to protect against the next generation of cyber-attacks.
Hybrid IT Service Management: A Requirement for Virtualisation and Cloud Computing
When competition is tough and resources are limited, corporate leaders are depending on growing their existing capabilities in order to grow their business. Information technology can be a unique catalyst for business growth, delivering a competitive advantage when creatively applied to established and emerging problems. Read more on what trends are accelerating the value of IT.
Endpoint Security and Virtualisation
Besides form factor, virtual systems are not really that different than physical systems. They both use the same operating systems and applications. They both present users with computing resources such as RAM and hard drives. Consequently, the ability to exploit vulnerabilities in a physical environment will present a significant threat to virtualised environments as well. This paper examines the different endpoint security methods for virtualised environments and presents how Endpoint Protection security provides optimal performance, protection and manageability.