Amazing battery life on the 7D!
I'm amazed how much battery life I'm getting on my 7D.
I've shot two basketball games this weekend (the NEWMAC men's semifinal and final; see http://rlk.smugmug.com/Sports/Basketball/MIT-Babson-Mens-Hoops-20120225/21635073_cBBBLD and http://rlk.smugmug.com/Sports/Basketball/MIT-Springfield-20120226/21648637_pC28H4 ). I took about 1200 frames yesterday and another 1400 today. I was using my 17-55 f/2.8 about 90% of the time (the rest of the time, Sigma 70-200 OS and 8-16), in AI Servo mode, with my thumb practically camped out on the AF button the whole time. I even took a few frames with the built-in flash today. Both days, my battery stayed on 4 bars; today the battery meter read 75% when I packed everything away.
That's mighty impressive battery life. I never had anything like it with my 20D.