The battery life is not the greatest. I would say somewhere around a little over a week. I get batteries for free which saves a lot of money. If i didn't i would look into getting rechargeable c-cell batteries. I think there is a way of hooking up a larger power source also. But you get what you pay for, and for less than $100 i am very happy. Also have had it out in some major rain storms and it has been fine.