fasterem: This spring I switched to Pure Energy Rechargeable batteries. These batteries come fully charged, ready to use. They are rated at 1.55 volt as compared to the other rechargeables of 1.2 and 1.25 volt. Recharging the Pure Energy will give readings of 1.56 to a little over 1.6 volt. I am using the AA in 2009 Bushnell Trophy Cameras (a total of seven cameras of this make). These cameras are well known for very little battery drain.
I am using "C" Pure Energy Batteries in the Wild View Ez Cam and also in the Spy Point IRB. There is a charger available by Pure Energy that is capable of recharging AAA, AA, C, D and it also as a port for 9 volt batteries. I have not noticed 9 volt rechargable batteries, but the feature is there. The charger will recharge Alkaline and also Nickel Metal Hydride. The batteries and charger are available at most Wal Mart stores. The charger will recharge up to four batteries at a time. I leave mine on charge over night etc. *I do not know how these batteries will stand up to the cold as I haven't had the opportunity to test them yet. If they do not like the cold I plan to use AA Lithium Ultimate in my Bushnell cameras for winter, cold weather use. Whenever I check my cameras, I spot check the batteries using a digital multimeter, and the same when taking the batteries off charge. Bushnell and Spy Point are both set for video with a 30 second video and 10 second delay. The Wild View is the early version that takes pictures only set for a three shot burst (three pictures) each time it triggers.