MY MOULTRIE 1.3 HAS BEEN OUT ALMOST 5 WEEKS AND STILL HAS ALMOST 50% LIFE LEFT ON IT. I USED TO BUY CHEAP BATTERIES AND I WOULD ONLY GET 7-10 DAYS BUT THEN I STARTED BUYING RAYOVAC ULTRAS AND EVEN LAST WINTER WHEN THE TEPM WAS IN THE TEEN FOR A MONTH I STILL GOT ALMOST 3 WEEKS OUT OF ONE BATTERY