ASUS UL80Vt Battery Life

Battery Life - Idle

Battery Life - Internet

Battery Life - x264 720p

Relative Battery Life

The coup de grace for the UL80Vt is the battery life. Look at those charts and try to find anything else for $800 that can match the ASUS UL80Vt. (Note: the ASUS UL30Vt doesn't count, since it's pretty much the same laptop in a slightly smaller package.) Netbooks are able to offer competitive battery life, sure, but they're less than half as fast. The best-case Idle battery life tops out at just over 14 hours, but even a more demanding test where we load four web pages every 60 seconds - including one page with three Flash ads - still ends up at nearly 10 hours using the IGP and stock CPU speed. What's more, you can run with Turbo33 and the G210M and still get over 6.5 hours of web surfing.

We've dropped the other video playback tests, mostly because they're all very similar to the x264 results. HD DivX will last about 10-15% longer, and lower resolution videos would also improve on the results, but in general you can expect 5 to 6 hours of video playback with the UL80Vt.

The relative battery life is the final element, putting things into perspective. The UL80Vt has a higher capacity battery, so getting more mobility is somewhat expected. In the lowest power mode (IGP + stock CPU) the UL80Vt can provide nearly seven minutes per Wh, which is just slightly less than the ASUS 1005HA netbook. Turn on Turbo33 and battery life drops by about 10%. Running stock with the G210M enabled on the other hand results in a drop of 46%. Internet surfing with Turbo33 + G210M doesn't really change compared to stock with G210M, with only a 1% drop. The results here are in a test that happens to be more demanding than our MacBook testing, so the stellar battery life is even more impressive. Is it any wonder we're impressed with the ASUS UL80Vt? You get awesome battery life with reasonable gaming and application performance, all for just $800.

ASUS UL80Vt Gaming Performance ASUS G51J Application Performance
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  • JarredWalton - Tuesday, December 15, 2009 - link

    Sorry... I didn't think to test the mic. Built-in mics range from passable to lousy, so any time I use a mic I use a headset.
  • Devo2007 - Tuesday, December 15, 2009 - link

    I commented on the first article that seemed to have an odd layout (conclusion on the first page, etc.) so it's only fair that I chime in with an update. This one was much better! I liked getting the introduction, then an overall opinion on the next page. Kudos for also providing a quick link to view the technical details of the laptop as well.
  • Visual - Tuesday, December 15, 2009 - link

    Not having both laptops at least on the same page if not the same graph for the performance benchmarks was a weird choice though. I realize they are in completely different leagues, but still an easier comparison between the two would have been nice.
  • JarredWalton - Tuesday, December 15, 2009 - link

    The games are all run at completely different settings (for obvious reasons). 3DMark06/Vantage also run at 1280x768 on the lower spec laptops, unless you connect an external LCD. Since they all run at that setting I've kept the results. I thought about combining everything, but I've got two sets of spreadsheets with results: one has the high-end stuff and the other has low-end options. Putting together all the charts already takes forever and a day, and combining them all would potentially increase the time and just make the charts more confusing. (I'm still not sure I did the right thing on the last few charts where I combined results.)
  • davepermen - Tuesday, December 15, 2009 - link

    my powerplans never mess up. never did on vista, never do on win7. but i never install specific powerplan-tools, just a clean os install, and then let it be (and reconfig the power plan, like the password-after-standby and such).

    so far, i haven't encountered your issue on all the machines i've tested.

    weird.
  • iamezza - Wednesday, December 16, 2009 - link

    It has happened to me fairly often since I did a clean install of 7 on my Desktop PC. Password on resume, hard drive timeout and monitor timeout are the ones that get reset for me.
  • cerebro - Tuesday, December 15, 2009 - link

    Just put SetPower on it (google it). It lets you configure the power settings based on time of day and takes into account whether the machine is plugged in or not. It uses scheduled tasks so it doesn't consume resources other than when it is switching plans for you.
  • aos007 - Tuesday, December 15, 2009 - link

    I have on the other hand ran into them quite often, especially on my laptop. I have the opposite problem - the damn thing just won't stay asleep and often I wake up finding it's on even though the lid is closed. And if it's not plugged in, you can imagine what kind of charge is left in it. I was getting it in Vista and I'd say it's probably even worse in Windows 7. I am guessing it has something to do with Microsoft's implementation of DLNA, I mean access to multimedia libraries and streaming. Microsoft specifically talks about devices needing to be able to wake up remotely when queried. That's all fine and dandy and even desired in a desktop but a laptop should really be a special case. Especially once the lid is closed.
  • The0ne - Tuesday, December 15, 2009 - link

    I have issues too, with and without clean installs. Sleep sometimes doesn't even trigger. Screen goes blank, screensaver, even though I turned it off. Very strange behaviors in Windows 7. This is for laptops though and I have not encounter anything with deskstops. There are other various strange little quirks in Windows 7 as well.

    Most annoying thing is the windows explorer restarting itself. I think I figured out what's been causing this problem and have since accidentally fixed it. Its was one of the codecs with the k-lite codec full package that was screwing things up. Bastard. None of the tricks via Google worked for me except for this.
  • JarredWalton - Tuesday, December 15, 2009 - link

    I'm guessing that it's possibly linked to the OEM software. Still, I'm 99% positive I had it happen with the Clevo W870CU and a clean install of Vista. I know on an Acer system I uninstalled every piece of software that was loading at startup, along with removing/disabling some services, and it STILL happened. Gah! I also don't like how many OEMs limit your setting on the critical battery percentage to 5%... I had to manually hack that on the G51J to make it 1%.

    At any rate, it was something I've encountered enough during the past couple of years that I finally wanted to mention it. ASUS on the UL80Vt is particularly annoying if you use the button on the keyboard (the ExpressGate "power" button) to switch between plans, as it will jack with all sorts of settings. To my knowledge, there's no way to edit the defaults that it sets on most of the plans (i.e. the Power4Gear Battery Life option will turn on "auto-hide taskbar" every time you activate it).

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