I tried/use the double A rechargables. They are o.k. at first, but over time they don't seem to hold up quite the charge as when new. I want to say, after 6 months or so you notice that they weaken and don't last quite as long. Could be a single battery draining the good ones as well. I put them on my test voltmeter and even though they say 1.55 to 1.65 volts after a charge, I hold my breathe after loading the camera. Nothing tee's you off more than checking game cams only to find the batteries died a week prior.

DQ Kid, I tried that a couple years ago and it didn't work. Even the best re-chargeables didn't last a month. I have since went to the external battery packs and solar chargers. The first set lasted almost 3 years. If I had brought them in during the cold and extreme heat, they would probably last about 5 years. I just bought another 10 of the 6 volt batteries on Amazon today for less than $52 shipped to my house ($5/battery). You can run two of them together in your own box or buy the Wildgame innovations box. I also use the Solar Panels for my Moultrie Cameras and had one 3 years so far and it is still going strong.

Only downside to this style is that you need to have your camera's in full sun. Works great for the feeder and food plot cams. When I put cams on the trails, I just replace the 2 batteries every month or two with 2 freshly charged batteries. This seems to work pretty good. Thinking about going to another cam for my inside the woods trail camera setups. Today's camera's can run a full year on a set of good lithium batteries (about $10/year for these compared to $10/3 years with my 6 volt setups).