I decided to do a battery test today because it didn't seem that I was getting the suggested battery life out of the Duo 11. Model: Vaio Duo 11 i5 128GB/6GB Testing: I ran the test with the battery in "power saver" mode, wifi enabled, and Bluetooth disabled. I set the computer to never sleep or dim the screen with the screen set to 40% brightness. I wanted to get some load on the cpu so I opened up the "Pinball FX 2" game and let its splash screen run. I had a few applications running in the background including explorer, zinio, and Xbox music playing music through the speakers at a volume of 10. I noticed cpu load to be around 12% with that configuration. During the test I didn't touch the system, I just let it run as stated above until it shut down by itself. Results: I started with 97% battery at 8am after a full nights charge. The computer put itself to sleep at 11:05am when it got to 4% battery remaining. Based on these result it looks like the maximum battery life I can achieve is 3hrs. Wondering what other people are getting out of their Duo 11 batteries.