One of Microsoft’s biggest promises with its new Surface laptops is vastly improved battery life, a long standing request from Windows users. According to Microsoft, the 13 inch Surface Laptop can deliver up to 23 hours of video playback or 16 hours of web browsing, while the larger 15 inch version delivers up to 22 hours of video or 15 hours of browsing. For the more portable Surface Pro 11 , Microsoft claims up to 16 hours of video playback and 10 hours of web use. That’s a nota
