Since I got the MBP back roughly 3 weeks ago, I noticed that the battery life has diminished. And significantly that is. I can use the machine for a maximum of two hours now, whereas it can stay almost 3.5 to 4 hours before. I wonder if the logic board replacement has got anything to do with it (although I highly doubt). For all I know, this could have been going on for a while but I was just unaware of. It’s been more than a year anyway.
Anyhow, before I check with Apple Care, I decided to diagnose it myself first (not an expert, so let’s just check the stats). This way, I can avoid excuses technicians always make when dealing with customers (i.e. like try to reset PRAM first, etc).