Pentax WG-2 Questions

I am thinking about buying one of these for intervolameter shooting. If someone knows the following, I'd be grateful for the guidance:

1. How many shots can you get from one charge?
2. Can you turn off the LCD to conserve battery during intervolameter shoots?
3. Does the camera have a AC adapter?
4. What settings do you have available in the intervolameter?

5. There is apparently an "interval movie mode". Can someone describe how this mode works?
6. Has anyone found an owners manual pdf online?
7. Is the battery accessible when mounted to a tripod?

Thanks,
Brian