I've had a Dell Latitude E5470 for about 3 years now.
I didn't have the charger with me, and noticed I only had enough battery for 2 minutes.
Yet, when I reached 0% battery the display turned off, I then Ctrl+Alt+Del and logged back in. The battery lasted for another 40 minutes in a roll showing 0% battery all the time.
I have windows 8.1 Pro. Do you guys know if there is a setting in Power configuration somewhere that couuld account for that behavior by any chance?
Any input is very welcome.