I currently have an Asus laptop and when I first bought it, the battery was just fine and use to last around three hours. Now I canât even use it as a portable laptop as charger plug is always required to be plugged in. This is really annoying for me. What could be the possibly wrong with my Asus laptop? Do I need to change the batteries? If yes, then tell me about the some places or stores in Chicago where I can replacement for Asus batteries? I would really appreciate your replies regarding this. Thanks.