Battery Life & Charging

Chrome OS has never struck me as being particularly optimized for low power consumption. Despite using relatively power efficient hardware and being paired with a 30Wh internal battery, the Chromebook 11 barely lasted 5.4 hours in our web browsing battery life test. Local video playback was even worse at 4.8 hours.

Web Browsing Battery Life (WiFi)

Video Playback Battery Life (720p, 4Mbps HP H.264)

Under heavy multitasking scenarios I wouldn’t be surprised to see more significant drops in battery life as well.

Charging is the other unique aspect to the Chromebook 11. Rather than a proprietary connector to an AC adapter, the Chromebook 11 features a standard microUSB connector for power. I asked Google if the Chromebook 11 implemented the USB Power Delivery specification, designed to deliver up to 60W over microUSB, unfortunately the answer there was no. There's a 200 kΩ resistor between ground and the ID pin of the Chromebook 11's charger serving as the signal that the charger can pull more current and supply up to 15.75W over the microUSB cable/connector.

You can charge the Chromebook 11 using any microUSB cable + charger combo, although power delivery will be limited to whatever the charger supports. You’ll also get a warning under Chrome OS:

Similarly, the Chromebook 11’s charger can be used to charge other microUSB devices but only at the maximum rate supported by the device.

When connected to the Chromebook 11, the bundled charger quickly ramps up to 3A @ 5.25V after a brief period, presumably where it confirms that the attached device is capable of handling increased current delivery.

Charge time is incredibly quick thanks to the 15.75W charger. The adapter draws a maximum of 21W at the wall (just under 80% efficiency, no 80Plus certification here it seems) and can completely charge the Chromebook 11 in roughly 2.5 hours.

WiFi & Performance Final Words
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  • Krysto - Tuesday, October 15, 2013 - link

    Also:

    "If you’re looking for the Chromebook 11 to last you for 5 years..."

    Why would you expect that from a $280 machine? I don't even keep my Core i7 machines for that long.
  • DanNeely - Tuesday, October 15, 2013 - link

    That's very user dependent; and the casual web user systems like this are marketed at are very much the use it until it breaks type, not chase the newest and shiniest people.

    Until the power jack died a few weeks ago my Mom was happily using a netbook I bought in 08. If an oven-reflow is able to resurrect it, I wouldn't be surprised if she keeps using it until something else breaks.
  • tat tvam asi - Tuesday, October 15, 2013 - link

    Totally off topic:
    Waiting to read AnandTech's take on Imagination Tech's new MIPs core:

    Imagination reveals first MIPS ‘Warrior P-class’ CPU core:
    http://www.imgtec.com/News/Release/index.asp?NewsI...
  • hechacker1 - Tuesday, October 15, 2013 - link

    Thanks for the review. I almost preordered this because overall it does appear to be a really nice machine.

    I can live with the 5 hour battery life; I rarely have to be away from an outlet that long.

    But the poor multitasking, and poor web FPS means I won't be happy using this browsing the web and writing the occasional document/code.

    Now if I could get a full blown copy of linux on this, then I wouldn't mind the performance considering how much you can tweak linux to run on low power machines.
  • Hung - Tuesday, October 15, 2013 - link

    I wish you had talked about the timing. I assume the primary market is students who don't need anything other than media playback, productivity, and web browsing. The release happened way too late. All those students who could have appreciated it already have devices. I guess HP could hope for some Black Friday sales. I doubt it will fare well against the new crop of netbooks come Christmas.

    But damn, I bought the Chromebook 3 literally a month ago and I'm pissed. It's a great device and all, but the display is terrible. Hopefully, the 11 uses the same connectors and I can just buy an LCD off eBay for <$80.

    I can definitely see myself using the Chromebook for another year. With flashblock, browsing seems perfectly adequate. More often I find myself longing for better display uniformity and viewing angles, or contrast in well-lit indoor conditions. I rarely wish for more power, although I do observe occasional checkerboxing. And while I agree about the good keyboard (I hate chiclet and that fact that everyone has moved to it), the touchpad could use a higher sensitivity setting. It's a little too slow at the highest setting, although it's probably limited by the low resolution of the touchpad itself.
  • Hung - Tuesday, October 15, 2013 - link

    Forgot to mention, it's a great supplemental device. However, I would definitely not recommend it as a primary computer. I built a great desktop a few years back and have been incrementally upgrading it over time. But you can't lug any kind of tower around to meetings, interviews, conferences, classes or out to a cup of coffee.
  • moejurray - Tuesday, October 15, 2013 - link

    I've been using the Samsung A5(?) for about a year now. It's fine. The price makes it easier to carry in a backpack, and let kids use it. What I mean is the shear value is low, so the care and worry about it are less than say, my old MBP.

    What bothers me most is the lack of horsepower that shows itself with stammering scrolling, slow page load times, and uneven video playback, even on Youtube - which I find surprising from Google.
    Other stuff:
    - The lack of stiffness makes it feel cheap. The mousepad is not smooth and taping, double clicking and other gestures are not always recognized.
    - I'm a cloud user, so the little on-board storage is not an issue. And I've yet to get any warning on filling what there is.

    So I'm looking forward to trying out a newer version. Hopefully it takes care of these concerns, and I can pass my old one down to a kid.
  • quagga - Tuesday, October 15, 2013 - link

    Thank you for this! I actually won one of these recently from Google so I expect it to show up eventually. Based on what I've read, this is basically the Samsung Chromebook in a new case with a better keyboard and screen. I find it odd the product literature keeps talking about how it has a 60% color gamut. I have no idea what that means - 60% of sRGB, 60% of Adobe RGB?
  • CrushingBore - Tuesday, October 15, 2013 - link

    So does the battery test for ChromeBook include loading pages which load Flash? If so could that explain the poor results as Flash is a known CPU hog? How about repeating the Tablet Web Browsing Test (WiFi) for the ChromeBook or disabling Flash and repeating the existing test?
  • OneOfTheseDays - Tuesday, October 15, 2013 - link

    Chrome OS is a joke of an OS, which is why they have roughly 0.02% marketshare.

    The only people pimping these obviously inferior solutions are tech reviewers with Google hardons that desperately want to see MSFT dethroned. Sadly, Anand is becoming more and more like them every day.

    If a Windows laptop ever came out with this poor peformance, battery life, etc. it would get slammed 6 ways from Sunday. But because this is Google it gets reviewed favorably.

    I'd ask yourself why hasn't this site even reviewed the Lumia 1020? Seriously, this POS is more important? Give me a break.

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