I have an HP Pavillion laptop that is about three years old and I have two batteries for it. Recently I have noticed that my batteries drain at an INSANE rate. I'm sitting here now plugged into AC power and opened my battery meter to watch it....it went from 100% to 15% in literally five minutes. What the **** is going on??? Both of my batteries do it....nothing has changed with the laptop (it's essentially an email laptop) and all I'm doing is writing email and browsing the web...no games, no movies. I'm frustrated as hell and don't want to waste another hundred bucks on a battery if it's the laptop.