I would like to know if I have to have the battery installed in my computer or I can just use the battery charger alone? I have always been using both when I use the computer. I am a user friendly and was told to always keep the battery charger plugged in, which I have done. My computer is only a year and a half old and I think the battery is going bad. The reason I'm saying this is that the battery icon shows that the battery is discharging while the charger is plllugged in. It sometimes states the battery is 96% not charging. Thanks hope I'm making myself cleaar.