I mainly use the Bushnell trophy cams and they have great battery life I've been using regular Energizer for the warmer weather and then I put the lithium's for the cold or regular Duracell which seem to last as good as the lithium interesting enough.. for the remainder of the warmer weather there's some great sales on rayovac high-energy and Eveready gold have any you guys got experience with these and see any kind of difference thanks