Battery Life

When Apple announced that the MacBook Air would have a 5 hour battery life I couldn't help but laugh. As Charlie over at the Inquirer pointed out, Apple did nothing new with the MacBook Air. The tough engineering was done by Intel and the component suppliers, Apple simply designed the chassis. Because Apple is doomed to use off the shelf components like everyone else, there's no magical way Apple can deliver 5 hours of battery life where its competitors have failed.

Close to 5 hours is attainable on the Air, but only in a very light usage scenario. Realistically you're looking at 2 - 4 hours of battery life out of the MacBook Air depending on what you're doing. In order to help set expectations, we've got a few battery life tests we put together (the descriptions of the tests were mentioned earlier on the SSD battery life page).

Battery Life: Wireless Internet + MP3 Playback

Apple's 5 hour claim is laughable but not as much as I expected. If I wanted to I suspect I could hit 5 hours by making the web browsing test less stressful, but my focus was on real world usage scenarios, not proving Apple correct. Regardless, 4 hours and 16 minutes doing what I consider to be the intended usage model of the Air is respectable. It's not great, but it's not terrible either.

The SSD improves things considerably, and it's worth noting that the fastest MacBook Pro can also offer similar battery life despite having a more power hungry CPU and screen (thanks to a larger 60WHr battery). The aging Core Duo based MacBook Pro put up an absolutely dismal time, which just goes to show you how much things can change in two years.

Battery Life: DVD Playback

The DVD playback test is also decent, you can watch a full length movie on the Air (even The Godfather). But watching two back-to-back isn't possible (although I do think you could squeeze two viewings of Rambo in there and frighten your fellow airline passengers).

Once again we see that the Air gives us better battery life than the original MacBook Pro, and a time that's competitive with the fastest MacBook Pro. Armed with an SSD, the battery life is the best Apple offers today.

Battery Life: Heavy Downloading + XviD Playback + Web Browsing

And then we have the multitasking scenario. At just under two and a half hours, this isn't your do-everything notebook. That should've been obvious from the get-go with the whole lack of an optical drive, 2GB memory limit and no built-in Ethernet port. The MacBook Pro advantage here is the greatest it has been in all of our tests, giving almost 30% more battery life than the standard Air.

Performance Summary & Subjective Feel Thermals & Strange Issues
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  • mattbull08 - Monday, February 18, 2008 - link

    actually a lot less "cool" but a much better option would be a panasonic T5 thicker but lighter than the MBA but with twice the battery life... and that last is really important in something you always carry and use all day, anything which can't go a full day without a charge is just not worth the expense (I know the T5 will do a UK->West Coast flight on a single charge).

    The only real loss is less performance (do you really need it on the road??) and nowhere near as nice a screen.

    Really depends on what your usage is... but I'll get a T5 when my current notebook goes thanks.
  • blumenbach - Thursday, February 14, 2008 - link

    "OK, so then the Sony TX, the Fujitsu P7k, the Toshiba Portege, the Dialogue Flybook, the Panasonic Toughbook, the Dell XPS1210, the Sony SZ, The LG XNote."

    The only one in this list that could compare with the MBA is the Portege, and even here it feels and looks like a plastic toy in comparison to the MBA. The display isn't near as sharp or bright on the Portege, and it's much slower. I owned the Sony, and Anand's review is right on: the cramped keyboard and tiny display made it a definite chore to use ergonomically.

    So, yes, just like the MP3 player (iPod) and smartphone (iPhone) Apple has taken the ultralight class, studied what others have done, and have set a new benchmark by redefining what is possible with these devices.
  • themadmilkman - Thursday, February 14, 2008 - link

    "Redefining what is possible with these devices?" That's taking it a bit far, and I'm a rabid Apple fanatic. The MBA is a first effort, and just that. I spent a good amount of time playing with one at the Apple Store yesterday, and the only thing I can say about it is that it is simply too large. I can do without the ports, the external drive, the non-removable battery, etc., since none of those things really affect how I use my laptop. But if the MBA were reduced to an 11" or even 12" screen with a slightly smaller bezel around the screen, I would buy one. Until then, it's worth it to just carry the extra two pounds and buy a MacBook.
  • ninjit - Wednesday, February 13, 2008 - link

    Regarding the 8 hour time-to-charge you noticed a few times. Did you calibrate the battery when you first got the Macbook Air.

    I've seen similar behavior on Macbook Pros before, when new or after buying a new battery - and it's almost always because the user failed to collaborate the battery initially.

    It's one of those simple things that manufacturers tell people to do (for good reason in this case), but most ignore.
  • Omega215D - Wednesday, February 13, 2008 - link

    I noticed that you missed the page down and page up buttons. I have to say that I like scrolling with the trackpad much better. Place two fingers on it and slide downward makes this a nice feature.

    To me the LED backlighting made the blacks a little richer and less prone to showing bleed like the regular LCD on the MacBook, did you feel this way too? I wished that LED backlighting is available for the regular MacBook like the one I just bought.

    I like the way Apple did keyboard lighting on the Air than the one on the MacBook Pro. Black keys with lighting works much better than lighting on silver keys in my opinion. This being said I get by just fine using the light from the screen to illuminate my keys.

    On a final note, there's no need to miss the right click button on the track pad, I just set the pad to accept clicks and allowed for two finger tapping to be a right click. I find it pretty difficult to go back to other laptops.
  • Omega215D - Wednesday, February 13, 2008 - link

    I noticed that you missed the page down and page up buttons. I have to say that I like scrolling with the trackpad much better. Place two fingers on it and slide downward makes this a nice feature.

    To me the LED backlighting made the blacks a little richer and less prone to showing bleed like the regular LCD on the MacBook, did you feel this way too? I wished that LED backlighting is available for the regular MacBook like the one I just bought.

    I like the way Apple did keyboard lighting on the Air than the one on the MacBook Pro. Black keys with lighting works much better than lighting on silver keys in my opinion. This being said I get by just fine using the light from the screen to illuminate my keys.
  • bpurkapi - Wednesday, February 13, 2008 - link

    When I first heard rumors of the Air I was excited. But seeing that there is no opportunity to upgrade it is worthless to me. For $1800 the ability to upgrade should be standard. This makes me really enjoy the smaller and more affordable EEEpc. If the purpose is just basic internet and note taking the EEE is a much better choice for a college kid, then the overpriced Air. I see the air as a status notebook, at 13.3 it is not really an ultra portable, yes it is light but the form factor is not that portable. I believe the size of the EEE is about as small as one can go without serious drawbacks. I think the Air will sell like the iTV. I just wonder why Apple would release this subpar product following the iPhone? You would think it would have been a tablet and actually had a smaller form factor. As of now the Air is worthless compared to other portables. Why would anyone buy this when the Macbook has better specs and is only 2 pounds more. The thinness of the Air is a gimmick and really doesn't provide much more portability.
  • Griswold - Tuesday, February 19, 2008 - link

    But its a clear winner! This is why:

    http://www.abload.de/image.php?img=macbookcommodor...">http://www.abload.de/image.php?img=macbookcommodor...
  • Mathue - Thursday, February 14, 2008 - link

    ""EEEpc. If the purpose is just basic internet and note taking the EEE is a much better choice for a college kid""


    I dunno, the EEEpc is way too small. In my job on the road, field and office I need a light machine that has REAL keys. My fingers are large since I do actually do 'work' in addition my eyesight isn't what it once was. The tiny screen on the EEEpc might as well be an iPhone with the text size. And for heavens sake, if the 'Surf' EEEpc has a RAM slot, darn-it, put a door on it so you don't have the pull the machine apart! I also, much as I dislike it, must have perfect Word, Excel and Powerpoint compatibility, (Watching a colleague running Ubuntu on a Thinkpad July of last year for a pre-made company presentation was painful) the OEM linux 'office like' application doesn't give me that, at least there is office on the Mac. And don't say run XP on one of those, I deal with enough XP foibles as it is then to have to run it on a 7" screen with cramped keys. As it is the Air probably barely fits for me, but the EEEpc just goes way too far size wise and is even less of use.
  • brianb - Friday, February 15, 2008 - link

    I can't wait for Anandtech to review the Lenovo X300 and do a side-by-side comparison:

    http://www.maccomplainer.com/macbook-complaints/le...">http://www.maccomplainer.com/macbook-complaints/le...

    I still think the main disadvantage of the MB is the 4200 RPM PATA. If I were a business user, the HD speed would drive me insane with all the documents and spreadsheets I may have to edit on the plane, train, etc.

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