Battery Life

The Transformer Book T100 features an integrated 31Wh battery. As the keyboard dock doesn’t include an extra battery, that’s all you get. The good news is that Intel’s Atom Z3740 is built on the company’s first 22nm SoC process and it’s paired with LPDDR3. At least on the silicon front, the T100 should be fairly power efficient. Granted there are still the PMIC, display, WiFi and other components to worry about, but here’s to hoping ASUS did a reasonable job there as well.

Unfortunately ASUS delivered our T100 review sample less than 48 hours ago and I’ve been using it non-stop since then. I think I technically broke embargo by using it at a press event but it’s the only way I’d get enough time with the thing under my belt to feel comfortable writing about it. The bad news is that I only had enough time to provide a battery life teaser. I’m still running more data but for now all I’ve got is our WiFi web browsing test.

The T100’s results are presented with the keyboard dock attached and with the display calibrated to 200 nits:

Web Browsing Battery Life (WiFi)

Battery life looks decent at just over 8.5 hours on a single charge. In practice I had no complaints about battery life while using the device. It feels more like a tablet in that regard and less like a notebook, which is a good thing. Once again we’re seeing ASUS redefining what we’ve come to expect from an entry level notebook PC here. Even compared to Chromebooks we see the T100 do extremely well. I’m curious to get a better feel for how Bay Trail performs in the battery life department, which I’ll be doing over the coming days. So far the results look good but not quite stellar if you compare it to traditional Android/iOS tablets. I am curious to see how BT running Android would turn out.

CPU, GPU & Storage Performance Final Words


View All Comments

  • ricardodawkins - Friday, October 18, 2013 - link

    then buy something with 4GB of RAM or that can be upgraded. This is a 350.00 tablet. Reply
  • popej - Friday, October 18, 2013 - link

    I agree, 2GB for Windows hardware is substandard. My 3 years old netbook supports 2GB. Reply
  • Khato - Friday, October 18, 2013 - link

    Out of curiosity, does the Intel Power Gadget - - work with Baytrail? Would be quite interesting to see what it reports for package power under the various workloads if it does. Reply
  • Penti - Friday, October 18, 2013 - link

    This is a good example why Intel's approach of really low-end devices succeeds and why Microsoft's Windows RT attempts fail. Intel gets ~30 USD, Microsoft still gets a fair share of licensing money but the user gets a full 2013 Home edition suite including damn macro/vba-support that RT doesn't provide. It supports connected standby (Surface 2 don't), but I would wait till these devices run 64-bit Windows. It does show that when they run the exact same platform and Metro is basically just the start screen that is still powered by Win32 underneath it does make RT entirely pointless. It has still better battery life than first gen RT-devices. Dock is obviously an necessity for all the Win32 apps this thing is suppose to run Reply
  • jhoff80 - Friday, October 18, 2013 - link

    " It supports connected standby (Surface 2 don't)"

    Surface Pro 2 doesn't. Surface 2 (and the Surface RT, for that matter) will of course support Connected Standby.

    As for macro and VBA support, it might be useful to you, but how common is that stuff in general? Seems pretty rare these days to me.
  • Krysto - Friday, October 18, 2013 - link

    Could do without the sensationalist title. Reply
  • nathanddrews - Friday, October 18, 2013 - link

    8+ hour battery life, under 1" thick, under 3lbs, full Windows OS, IPS touchscreen, detachable base for tablet mode, $350. How exactly is that not redefining entry level? I sure as H-E-double hockey sticks haven't seen anything like it. Reply
  • Drumsticks - Friday, October 18, 2013 - link

    "Redefining the Entry Level Windows Notebook" how is it not? Great display, Decent performance without a bad IO system, and amazing battery life. There wasn't a single $350 notebook on the market a year ago that would have given you that. Reply
  • Qwertilot - Friday, October 18, 2013 - link

    Running windows anyway ;)

    Seriously though, this isn't an entry level notebook, its a slightly odd hybrid device. With associated compromises noted in the review. Anyone know if we're going to get normal notebooks with similar specs as well?
  • Drumsticks - Friday, October 18, 2013 - link

    Dell has a haswell Pentium based CPU in an 11" notebook rated for somewhere in between 8-10 hours of battery life for $379. I'm not sure if it has an IPS display though. Reply

Log in

Don't have an account? Sign up now