17Jan/16Off
Microsoft leaks new HoloLens details
The device will offer roughly five to five and a half hours of battery life when working on Word documents or email, and about two and a half hours when using it for highly intensive computational work involving detailed renderings.
...He also addressed questions regarding the HoloLens' field of view (FOV), saying that the experience is like having a 15-inch monitor about "this far" from your face, at which point he holds his hands about a foot in front of his face.
Harris also confirms that the HoloLens doesn't get warm because it was "built to dissipate heat," and that the device has "no option for a wired connection."
See the full story here: http://mashable.com/2016/01/16/hololens-battery-life/#ppWk9CNC3aqE