Single page Print

Battery life
We tested battery life twice: once running TR Browserbench 1.0, a web browsing simulator of our own design, and again looping a 720p Game of Thrones episode in Windows Media Player. (In case you're curious, TR Browserbench is a static version of TR's old home page rigged to refresh every 45 seconds. It cycles through various permutations of text content, images, and Flash ads, with some cache-busting code to keep things realistic.)

Before testing, we conditioned the batteries by fully discharging and then recharging each system twice in a row. We also used our colorimeter to equalize the display luminosity at around 100 cd/m².

Even without an auxiliary battery tucked under its keyboard, the Transformer Book T100 managed 10 hours of web surfing and 12 hours of movie playback. Those run times are pretty good for a tablet, especially since the keyboard dock was connected for both tests.

Video playback
For this test, we probed video performance using two versions of the second trailer for Rian Johnson's Looper: one in 1080p H.264 format from the Apple website and the other, also in 1080p format, on YouTube. We played back the former in Windows Media Player and the latter in Internet Explorer 11, and we used Windows' Performance Monitor utility to record CPU utilization.

CPU % (low) CPU % (high) Result
Looper H.264 1080p 2.3 12.9 Perfect
Looper YouTube 1080p 5.1 16.1 Perfect

I think we can call 1080p video playback a solved problem now. Even when streaming the HD Looper trailer from YouTube, the T100's output was perfect. Streaming the video used only slightly more CPU resources than playing the local copy.

Surface temperatures
We measured temperatures using an infrared thermometer at a distance of 1" from the system after it had been running TR Browserbench 1.0 for about an hour.

21°C
70°F
23°C
73°F
22°C
72°F
23°C
73°F
25°C
77°F
21°C
71°F
20°C
67°F
21°C
71°F
24°C
76°F
20°C
68°F

The T100 barely warms up after extended web browsing. There are no fans, so the tablet is completely silent, as well.