I keep my laptop plugged everyday since I got it and never had problems with it. Now it's 2 years since and for the last days the battery light keeps changing from white to orange. The battery says 94% plugged in, charging. The problem is that if I take the charger out of the laptop, he dies. Like totally. It turn down in a second. I tried to unplug and replug the charger and it opens, still at 94%, still orange. Do you think it's the battery?