bought a moultrie dgs-200 cam. read the directions and installed the battery. ran through the diagnostic checks and set up and all seemed right. put in yard to catch the critters in the neighborhood.went back 4 hours later and the low battery was flashing. thought i must have got a lot of pics to do this so fast.brought it in and found nothing on the card. replaced with another new battery and the same thing has happened. dead battery and no pics.anyone have an idea?