Master Chief Collection is only on Xbox One <| sep |> Yeah mobcommunity . I ' m not saying big , strong community is good . That ' s not what this discussion is about . OP ' s dad wants big , strong community I don ' t . That ' s why I like the West and choose to live here for the lack of groupthink that is required for the communities OP ' s dad is talking about . <| sep |> I have the Surface Book 16 GB 512 GB SSD Performance Base model and have been extremely pleased with the battery . It is easily lasting me 12 hours of mixed use of MS Office , Chrome 12 tabs , Windows Store apps , random Youtube video playback , 3 OneDrive ' s syncing , and all at 50 % brightness . Frankly , this is my favorite Windows computer of 2016 after having tried dozens of Windows laptops this year earlier Surface Book , Surface Pro 4 , XPS 1315 , Samsung 9 1315 , Asus Q 324 , HP Spectre X 360 Kaby Lake , early 2016 Razer Blade , Samsung Tabpro S , etc . . My chief complaint for the new Surface Book with Performance Base is trying to find an attractive case or shell that fits correctly due to the performance base having more of a bulge to it to account for the higher capacity batteries . I compared the SB to the new 2016 MacBook Pro 13 with touchbar which I also purchased recently and it struggled to give me 8 hours with the same use case . I ended up returning the MacBook because the battery life was extremely inconsistent . I have found that Apple ' s battery life claims are usually more accurate , but not this year for my real world use cases . I usually take a a third off Windows laptop estimates and a quarter for Apple to get a better sense of what I might expect for real world usage . I really hate the video life claims as I find that unrealistic for most people . Regarding your Surface Book battery , I would download something like BatteryBar for Windows and check your average power usage against capacity to get a more accurate picture of how long the battery will last . Also check your task manager to see what is eating up that battery it could be indexing which goes away after a day or two .