Ok, so about 4 - 6 months ago, I bought the newest Macbook Pro out, (the newest version ... ) and it's battery life was fine and lasted to 4 hours, now, it lasts like 1 hour or maybe up to 2 hours with 100% battery power. I am annoyed, and how do I get this problem fixed? is there a possible reason why it is so low and not lasting it's 4 hour battery life like it is meant to? Also, what are tips to make it last it's 4 hours ... also, no other problems, like errors have happened, only battery life.