Hi, I have a Macbook Pro 13in early 2011 model. For a couple months my battery life had been very bad, around 2 hours of normal usage. I decided to get a new battery for the laptop (cost me $130 at the apple store). I anticipated new battery life performance but when I got the laptop back, it was at 50% with only estimated 2 hours left. Is it suppose to be this low? Coconut battery says that the battery has 0 cycles (duh) and the discharge rate is 13.2 watts. The only thing high on energy usage is safari right now as I type this forum post.