What's new

Charging indicator? anyway to tell if its actually charging

If the device is on, and I'm using it (just browsing the internet, with one tab, no other apps or desktop programs running), should the light eventually turn green? Because, I was using mine last night (just like described) and the light didn't turn green. It was always white. Perhaps it just hadn't quite reached full charge yet, but I'm just curious to know if the light only turns green if the device is off and reaches fully charge etc.?
As far I can remember on the Surface Pro it stays white forever, don't think I've ever seen it go green? Of course, it might be different on the Surface Pro 2.