I felt for some time that the DP1 have much better battery life than I expected or felt at first - mainly due to the fact that my initial shooting habit changed some with time - my interest in zooming into every single detail in every image has now matured and I can relax more.
I decided to make new test.
I turned off the LCD, turned on full AF and put on the external view finder. In order to take as many shots as possible I also turned on continues mode. Three pictures was taken each time. (95% of the time). ISO100 used on the first 400 - then ISO400 after that. I restarted the camera 30 times in a row to make test more real. I shot some indoor and some out door. It does take some energy to take as many shots as I did. :D In one day.
Result:
RAW files: 250 (2.97GB)
JPEG Full size: 236 (577MB)
JPEG Med size: 172 (108MB)
JPEG Low size: 218 (72MB)
Movies: 3 (total 60MB > 4min)
Sound file: 1
——————————
Total: 880
In short: LCD off - AF on - Continues mode on.
Using LCD on maybe 30-40 shots. MF used on about 20 shots.

Thanks for all the hard work and this great site Carl,i am deciding between the SD14 and the DP-1 and it is a hard choice.
Thanks for uploading so much great info on these cameras it really is a great help.
Brian
Brian! thanks for your comment. It’s fun. :) I’m sure it’s a hard choice. I’m happy I don’t have to make it.
Hi Carl. What application did you use to view your images like that (in the picture you posted)? What a great way to browse images! Please let me know where I can try out this software. Thanks.
Hi Another Brian! :D
It’s native OS X style viewing. Just select a big bunch of photos and then click “overview x objects” or something. My system is in Swedish so I don’t know the exact term.
It’s very useful.
You always find a way to stretch limits …
Spalbird. :D
Thats a lot power Carl … I guess that battery gets a lot better after few charge-discharge cycles…
Thanks fos testing :-)
Best,