I am a windows user, but as the next Macbook pro comes out I'll get one. On Windows, as many of you know, there are 3 power plans: High Performance, Balance and Power Saver. And even in Power saver I can only have an hour of battery. My question is: Do macbook's have these type of plans to? Enabling the 7 battery hours? Or it just run always at the same performance when plugged in and when using only battery? I am not refering to "decrease luminosity" or "disable bluetooth". Thanks!