I have a MBP and I replaced the battery probably back in October. I cycled the battery every month or so. I realized about a week ago I was only getting about an hour out of the battery. I cycled it last night and I'm only getting about an hour and 30 mins out of it. I'm not doing anything that is really taxing the computer, some light word processing and surfing the web. Do I have a case to call Apple?