5.0 out of 5 stars
Genuine canon battery, 6 Jan 2014
Excellent real world usage after the battery is initially conditioned with 3 full charge and discharge cycles works out in excess of 600 photos. Lasted one whole day at Legoland and into half of the next day! I had a spare but it wasn't called into action! But this is probably down to continuous daylight use, and relishing the high ISO capability with natural light. It probably couldn't do 600 if it was spaced over a few weeks, with heavy use of flash, video and playback facilities.