i have about10 35mm stealth cams...i use rechargable batteries (2500) and they will last me about 5-6 weeks...but regular batteries (cheapy walmart brand) will last me about3 weeks usually...i have had two cameras have that defect where they just snap pictures with no real motion.....the rest work just fine (they don't work as well in the hot heat -90-100degrees for consecutive days) but other then that the rest work just fine...good clean picutes and i use fuji film and have had no problems with them at all...i always set the camera to take 2 pictures every one minute of motion...and make sure when you put the film in and turn it on that after it is done winding you look at the front screen and it says "0" not "E"...found that one out the hard way....