In an industry that gets off on throwing obscure benchmarks at buyers ( anyone?), laptop battery life is one of the easiest to understand. It's also long been one of the least useful, critics charge, due to the industry's deceptive use of the dominant standard, the created by the Business Applications Performance Corp.

Unlike benchmarks that only measure battery life, MobileMark 2012 Lite measures battery life. Higher display brightness than MobileMark® 2007, as well as support for screen dimming during periods of user inactivity.

(BAPCo), an industry consortium whose members include Intel Corp., Dell Inc., Hewlett-Packard Co., Advanced Micro Devices Inc. 'Everyone in the industry knows this benchmark is wildly optimistic and that the actual battery life you'll get is often less than half what MobileMark suggests,' wrote analyst 'This is because MobileMark measures battery life much like you might measure gas mileage if you started the car, put it in neutral, and coasted down a long hill.' The latest MobileMark 2007 report measures laptop battery life under three scenarios: reading a document, watching a DVD movie, and doing a 'representative' mix of productivity tasks, such as reading and composing documents, editing photos and encoding Flash videos (see. But rather than using an average time based on all three measures, BAPCo designates its third scenario as the way most people use their laptop. There are several problems with this, according to critics.

First, doubters such as AMD or more of the time. Second, MobileMark's 'productivity' scenario assumes that users, when active, are using only software such as Adobe Photoshop or Microsoft Office. They don't test usage of music or video applications such as iTunes or Windows Media Player, games or Web browsing.

The test also assumes that Wi-Fi is turned off. That seems particularly unjustified today, since netbooks are touted as on-the-go, Web-centric devices, or Finally, MobileMark 2007 allows PC vendors to set their laptop screen brightness at the lowest possible setting, provided it is no lower than 60 nits (a nit is a measure of brightness. The problem, again pointed out by AMD, is that 60 nits, being only about one-fifth of most notebook PCs' maximum screen brightness. According to an, a Windows community site, fewer than 15% of respondents run their notebooks that dim. BAPCo defended its MobileMark benchmarks. 'The content of BAPCo benchmarks are vigorously debated and cooperatively developed by BAPCo members according to a long and rigorous process,' the company said in an e-mailed statement. 'As is the case with all BAPCo benchmarks, MobileMark 2007 was approved by BAPCo according to a democratic voting process similar to ones used by most industry work groups.'

Did you go to the country on your day out? At the History Museum Lesson 3. At the Library Lesson 4. At the Cinema Lesson 5. On a school trip Lesson 6. At the amusement park Lesson 7. My best day out Lesson 8. At the school radio station Lesson 9. The first pearl Lesson 10. Dumbo UNIT 3. Do you like TV? What's on TV? Films for you and me Lesson 3. Oct 28, 2017 - pm Hockey goufake,. Did you go to the country on your day out? At the History Museum Lesson 3. At the Library Lesson 4. At the Cinema Lesson 5. On a school trip Lesson 6. At the amusement park Lesson 7. My best day out Lesson 8. At the school radio station Lesson 9. The first pearl Lesson 10. Dumbo UNIT 3. Do you like TV? What's on TV? Films for you and me Lesson 3. Oct 26, 2017.. Oct 30, 2017.

Despite the criticism, many vendors are willing to tout the battery life from the Productivity test as their overall MobileMark score. See these offers from,, Only Acer Inc. (download identified its MobileMark time as a productivity score.

Asus Inc., Apple Inc. And Toshiba Corp.

Didn't mention MobileMark on their Web sites. In late June, a class-action lawsuit was filed in U.S.

District Court in San Jose, targeting Intel Corp. For, 'essentially rigging those tests to inflate the battery life of laptops powered by its chips.' Intel denied the claims, and noted that the same law firm, Girard Gibbs of San Francisco, unsuccessfully filed a separate class-action lawsuit against Intel several years earlier, according to the Mercury News. Intel also disputes the claim that the public is being misled. 'Anyone who criticizes consumers' intelligence when shopping for laptops is underestimating the consumers,' an Intel spokesman told the Mercury News.

Carol Hess-Nickels, director of marketing for business notebooks at HP, took the same line. 'I'd say we are pretty pleased with the benchmarks used today,' she said in an interview last month several days before the lawsuit was filed. 'I've not personally gotten complaints.' HP claims business netbooks such as the and the can run up to eight hours, or a full business day, on an optional, extended battery. Lenovo, which has for its laptops on extended batteries, acknowledges there is a problem, however.

'We don't really like the fact that something is supposed to get four hours and users routinely say, 'We divide that number by two and that's what we get,' said Lenovo segment marketing manager David Critchley in an interview, also several days before the lawsuit's filing. Dell appears to agree with Lenovo. 'Customers expect the advertised battery life to reflect the way they really use the product,' Ketan Pandya, head of AMD-based products at Dell, As a counterbalance, some magazine reviewers go overboard to turn off all of a laptop's power-saving features, Critchley said, which is equally inaccurate. 'We put a lot of time and effort into our power manager,' he said.