I had my Stealth Cam Prowler out for 3 months on the same batteries when using it this summer trying to catch a couple of thugs that were breaking in my grandmother's place. The batteries were still good when I took it down but changed them so i know they wouldn't go dead when I wanted them the most. The trigger time is around 2.5 seconds but has a good range and a fairly wide view soI do not mind that to bad.