My blackbook's magsafe suddenly went dim green and will keep the laptop powered but wont charge the battery. Like if I let it drain to 70% and plug the charger back in it stays dim green and stuck at 70%. But, if i plug in my macbook pro's magsafe it charges fine, so is the magsafe from my macbook dying? If so, any change apple will replace it even though my macbook is out of warranty? It seems like they have been having a lot of trouble with the magsafes.