I used my Acer C720 Chromebook to download the 4GB Windows 10 Technical Preview today.
Yes, I know you appreciate the irony, too.
I began the download at 1330 when I left for work, with the battery at about 90%. Just got home at 2030, and the battery is at 53%.
That's just so damn cool! Oh, but there's only five hours of battery life left...