idialman

my dad has had this PowerBook G4 laptop for 2 years and he recently gave it to me. It's been working fine up untill a week ago. Every time i unplug it, it automatically shuts down. It's instantaneous. It has never had this problem before. like 2 weeks ago it used to last up to 3 hours at least with battery life. I have no idea what's wrong at all. If anyone could assist, i would really appreciate it.