With all of the talk about the HTC Vive and Oculus Rift being held back by cables, Microsoft has announced that HoloLens will be a "totally wireless" device, thanks to the inclusion of Bluetooth and Wi-Fi connectivity.
During an event in Tel Aviv, Microsoft Technical Evangelist Bruce Harris said that any universal Windows 10 applications will run natively on HoloLens and that for the HoloLens to reach its full potential, developers will need to make 3D apps to draw people in. Harris said that a wired version of HoloLens would not be happening.
When it comes to the battery life side of HoloLens, Harris explains it will be "very much like a laptop". In other words, we're going to be looking at around 5.5 hours of basic use, and 2.5 hours of intensive use. Microsoft has managed to get battery life on HoloLens to around 5.5 hours by making the field of view smaller, with Harris explaining that it's similar to a 15-inch monitor at 2 feet away. When costs begin to come down, Microsoft will increase the FOV in future iterations of HoloLens headsets.