Battery life in the wild

Last weekend I hiked with 15 scouts at our sections cabins located in the Tyresta National forest. Of course, the purpose of being there was not to listen to podcasts, surfing the Web or watching videos. Rather I brought my A1000 in case any of the parents wanted to call us, we had do make an emergency call (which we never did) or simply stay connected with the other leaders.

To my surprise the battery was almost dead after the first night, even though I turned the phone of during my six-hour sleep. At first I could not believe it. Then I realized that the reason must be the extremely bad 3G coverage in the area. That probably made the phone use extra power to stay connected (which by the way did not work that well).