I recently changed the battery in my wife's key fob and replaced the fob in the leather cover. I verified the battery had 3.27 volts before installing it. The next morning my wife was unable to use it to open the car. I checked the battery and found the voltage had dropped to just over 1 volt. I replaced it and the same thing happened but this time I didn't put it back in the leather cover. I think it may be that the fob itself is continually activating itself even when not in the vicinity of the car, thereby discharging the Batt. Has anyone else experienced this problem?