Ever since I upgraded to Lion, I've seen my 2010 MBP take a hit in battery life. 2010 MBP, i7, 8gb, 256gb SSD. with Snow Leopard, I would average 4.5-5.5 hours on the battery with Lion, it seems to be 2.5-3.5 hours on the battery Im trying to monitor the system as best as I can to see if a process is running the CPU high. But I'm not able to find anything that stands out. I 'upgraded' from SL and am experiencing the general sluggishness and high RAM usage a bunch of other people are experiencing. My brother who has an 2011 MBP i5, 750GB claims to be averaging 7-8 hours battery consistently. He did say he runs on the integrated GPU 90% of the time, whereas I am on the discrete GPU 90% of the time. Could this difference account for the big disparity in both our Battery Life? Is there any software utility I can install which would track all my battery cycles, show me the drain times for each cycle, and how much juice was left when I recharged. I am looking to quantify my "battery life issues"