I think my battery died, but before I buy a new one i wanted to ask the community here. My battery indicator says its at 0% charged and will never go up. The light on the side where you plug the charger into is lit green like its fully charged. When i open up istat pro it tells me the battery is at 75% life and is fully charged, but when i pull out the plug the laptop dies immediately. Is my battery dead? If not, is there anything I can do to fix it?