@koenkooi and
@neuroanatomist are close to the mark, I'd say. I generally don't shoot 30fps burst, but "only" at 15fps and short bursts (but there can be several 2-3-4 bursts close to each other).
When I shoot motorcycle racing, there's always another motorcycle coming into the corner I'm shooting at, so there really isn't any downtime time to chimp (only between sessions). Because of that, I sort and cull images after the event.
As examples of this, I checked a bit of data from two events this summer:
1) MotoGP at TT Assen in June. While I've deleted most from Friday, I can see that I shot image 6731 at 10:16 and image 9118 at 15:34, so that's at least 2388 images in 5h18min - that's 7.5 images/minute on average (as I recall the full count that day was around 2700).
2) Airshow. I shot around 4500 images at a local airshow 3 weeks ago (Friday evening + most of Saturday) and changed battery when the indicator started blinking at me (at 9%). I
think it was around the 4300 image mark.
Bottom line is that the CIPA use-case is far off what my 'normal' use-case is, so it's not a good gauge for me. My feeling (and this is a
gut-feeling, as I do not have any data to back this up with) is that while CIPA method (shoot, chimp, turn off/on) maybe was representative of how cameras were used previously, with the increased FPS and storage available today (and more users have never used film cameras), it is less representative.
It might be more representative if CIPA created a couple of "user profiles": landscape, family, action, event, and give shot estimates for those profiles.
Shooting landscapes has an entirely approach than action has: in the first power consumption is likely dominated by EVF and screen consumption, whereas action is about shooting and storing a lot of images and little-to-no screen time.