I've had a Panasonic DMC-GF2 for a couple of years and the battery life has always been terrible. I've bought a new battery, thinking that was the problem and battery life has still been bad. I will put a fully charged battery in the camera and 48 hours later (with the camera off the whole time) the battery will be dead.
Friends of mine with the same camera have not had this issue. I wish I had identified this problem and returned the camera while it was still under warranty. Am I doing something wrong or did I just get a bad unit?