Netbook Battery Life Comparison

We've expanded our battery life testing on netbooks to include many scenarios, at least for this initial look. Since most netbooks don't include optical drives, we ripped our standard test DVD to a hard drive and copied those files over. Obviously there's a benefit to not powering a spinning DVD, but even without that advantage the netbooks provide much better battery life than higher performance laptops. Note also that battery results from the GIGABYTE M1022 are missing in several of the charts; at five or more hours (plus recharge time) per test, we'll be working on getting the remaining results for a couple more days.

Battery Life - Idle

Battery Life - Internet

Battery Life - Xvid Video

Battery Life - DVD Video

Battery Life - DivX Video

Relative Battery Life

Few laptops are able to come anywhere close to the same battery life using a moderately sized battery, and the ASUS 1005HA in our worst-case test (720p DivX playback) still provides 35% more battery life than the Gateway NV58 at idle. Besides DVD playback from the hard drive, we included battery life testing using HD DivX and SD Xvid formats. It's interesting to note that the Acer 751h essentially ties the 1005HA in the DivX test, while it trails in most of the other battery life tests by over 10%. Xvid playback is also closer at only 5%, so the GMA 500 hardware looks like it handles certain video playback scenarios better than the GMA 950.

The ASUS 1005HA by default ships with their Super Hybrid Engine software enabled and set to "Auto" performance. This results in a 12% underclock on battery power, improving battery life in the Internet test by 5.6%. Considering most people buying netbooks aren't ultra concerned with raw performance in the first place, the boost in battery life is a nice extra. If you prefer to run the CPU at stock performance, selecting the "High Performance" setting within the Super Hybrid Engine utility will allow you to do so. You can see the difference between the two settings on the Internet and Relative Battery Life charts above. We ran the remaining tests using the "Auto" setting.

Note that we calibrated all of the test laptops to run at 100 nits brightness (give or take about 5% as many laptops don't provide fine enough control to hit 100 nits exactly). Considering the ASUS 1005HA and the Gigabyte M1022 have virtually identical hardware, we were a little surprised that the battery life relative to battery capacity favored the ASUS 1005HA by 37% (and we'll recheck that score before the final review). Either the battery in the M1022 is flaky or ASUS has done a lot more work in fine-tuning the power saving features on the 1005HA. However, even at idle we didn't reach the advertised 10.5 hours of battery life; we could likely do so if we reduce the LCD brightness to its minimum level, but that's not how most people will use their netbooks.

Overall, despite the 10.5 hour claim being somewhat exaggerated, the 1005HA routinely manages over 6.5 hours of battery life in situations that are known for taxing laptops. You'll have enough time to watch three or four full-length movies without recharging, if that's what you're after. If you stick to less strenuous usage like surfing the web or basic office tasks, getting eight hours or more out of the 1005HA between charges is possible. And you get all that in a package that only weighs 2.8 pounds; that's not something you'll get from a regular laptop.

Netbook Performance Comparison Netbook LCD Quality


View All Comments

  • Mithan - Thursday, August 20, 2009 - link

    I want it for Internet, Word Processing, Email and maybe the odd crappy old game, so I dont need a killer video card.

    Still, 1.2 isnt enough speed..
  • gaiden2k7 - Thursday, August 20, 2009 - link

    they do have one - it's called a mac :p

    and you can bootcamp W7 if you so desire

    drawback? cost.
  • orenlevy - Thursday, August 20, 2009 - link

    as i Open the New 1005 i noticed immediate the charger plug that shrink to size of is absolute drawback case when u move the notebook when connected to charger it is so fragile connection .i already have this problem with 1 client it is too thin for notebook world.
    besides the surface of the touch pad
    is strange if your finger little wet it is heard to controls the mouse.
    that's all for now.
  • vlado08 - Thursday, August 20, 2009 - link

    Is it possible to compare the Acer Timeline 3810T (Intel ULV Core 2 Solo SU3500) with these netbooks (Intel atom) Reply
  • bingeboy86 - Thursday, August 20, 2009 - link

    This is a great netbook for making a hackintosh.

    Only annoyances are no access to the wifi card or the HD with out really taking the machine apart. Other then that I've loved it.

    Here is a good read if you want to install osx on it:">
  • jabber - Thursday, August 20, 2009 - link

    ....when I saw the vertical res was still 600 in the spec list. Reply
  • Visual - Thursday, August 20, 2009 - link

    it is also again using the old chipset and crap video, really disappointing.
  • JarredWalton - Thursday, August 20, 2009 - link

    Acer AO751h is 1366x768... but it's not a clean win by any stretch. Review should be up next week. Reply
  • crimson117 - Thursday, August 20, 2009 - link

    CPU = z520 = boo, hiss!">

    Am I really expecting too much for a ~$320 netbook without any obnoxious drawback? They fixed one thing (the screen size) but at the same time they ruin another (the much crappier processor), making this a compromise sidegrade instead of a sure-buy.
  • JarredWalton - Thursday, August 20, 2009 - link

    And just because the LCD resolution and size are "better" doesn't make the LCD the better choice overall. The ASUS display looks *much* nicer than the low contrast 751h... but I do have to say the 1366x768 resolution is much more desirable. There are a few other netbooks coming out with 11.6" LCDs as well; hopefully one of them will work better. Reply

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