Thanks, So far I am over 200 photos and on the same set of batteries since December 22nd, they are still reading 98%, not bad considering the subzero temps we had so far this year.
It was the primary reason I got the reconyx camera, although it was expensive. In the past my older cuddeback would be done after 2 weeks and maybe 20 images.
They claim one set of 12 lithium's "AA" are good for almost 10,000 images, so I suspect I could leave it for months, I still need to toy with the sensitivity as I capture blue jays midflight and falling snow off limbs, but overall I am happy. Like Whilslepig said though, the technology can only get better for other brands and hopefully reduce the price. The reconyx also came with nice software, combined with a google earth high res overlay, so you can place your images for tracking over the course of the year.