My last MBP was a 2009 15 inch with 500gb hard drive, 2.66 C2D, 4gb ram, and gave me 6 to 7 hours of battery life on average. My newer MBP is a 2010 15 inch with the same 500gb hard drive, 2.4 i5, 8gb ram, and gives me 5 to 6 hours of battery life on average. I calibrated the battery properly on the new one and my battery cycle count on the new one is 14. The battery is also listed under the profiler as being normal. I was expecting to get battery life that was longer than the previous gen. Am I missing something here? My usage and brightness settings are the same for both laptops. Also, these readings are when I'm using the integrated graphics and not the discrete.