Howdy all. I am hoping that a few of you can shed a light on my SP4 I7 issue? I am suffering from what seems to be a common battery issue, I get about 5hr hours usage absolute max. I would define that 5 hours usage as extremely light. That five hours is spent using Edge for about 2hrs , with just 5 or 6 tabs open, not watching any video (battery drains over 20% an hour with just light internet browsing use). The remaining 3 hours are spent with the surface being idle, but having the display left on. I have done all the usual stuff, disabled Cortana, disabled windows hello, using an adblocker, updated drivers etc CPU usage seems relatively normal, staying at 2% to 5% idle Is this normal battery performance? Is it dead on arrival? Do I need to return it?