I bought a y480 Ideapad awhile back. At one point my GF was using it and said that it stopped charging and eventually the battery drained and died. Now when I take the battery out and plug in the ac adapter I get nothing. The computer won't turn on or do anything. When I put in the battery and the computer isn't plugged in I still get nothing. When I plug in the computer with the battery in the battery light blinks orange 3 times then stops. If I hold the power button down it will blink forever. I've tested the power chord with other devices and it works so that isn't the problem... Any ideas whats going on? Thanks