Just recently I swapped out my 160GB HDD with a new 1TB Samsung internal HDD. (Amazon Link) I've had so many complications trying to install this HDD, but I finally did it. Just when I thought all these complications were over, up comes a new one. Ever since installing this new HDD, I feel as if my battery life drops incredibly quickly. I keep looking back and forth and the battery life percentage and it seems to keep dropping at an alarming rate. I'm worried that my new HDD might be the cause of this, or maybe I'm just paranoid. I only have Google Chrome open (3 tabs; this; a Mac Forums tab, and an Amazon tab) and my battery life is at 67% and it has an estimated 2:48 of life. I don't know if it's just because my battery is old or because of the new HDD. What I'm hoping is that it's just because my battery is old. It says my battery's status is at Service Battery. Here's what it says about Service Battery status: "Service Battery: The battery isn’t functioning normally, and you may or may not notice a change in its behavior or the amount of charge it holds. Have your computer checked by an Apple Authorized Service Provider (AASP). You can continue to use your battery before it’s checked without harming your computer." Hopefully it's just that my battery is old and it's as simple as scheduling an appointment or whatever at the Apple Store and getting a battery replacement (as they suggest on their website). I apologize if I'm typing this and coming off as a special child angry at a piece of machinery, but I just want a solution so I can be done with this HDD replacement bull$hi7. Here's all my info and whatnot: MacBook Pro 13" Mid-2009 If you need any other info on what I'm running, just ask. I'm tired and I need to go to bed so excuse me if I left anything out.