I did a google search for rayovac batteries and came up with this link: http://www.rayovac.com
Selecting the "alkaline battery", they have a seven year shelf life and come in AAA, AA, C, D, and 9 volt. Selecting the "Platinum battery", these are rechargeable and come in AAA, and AA supposedly capable of taking 400 photos per charge--16X more than the competitors lithium. I'm not sure how well these batteries stand up in cold weather as I have not used them. From various reports the lithium are well suited for colder weather. I have some of the 7X and 8X Energizer Lithium Ultimate batteries but these are not rechargeable. Energizer does carry rechargeable batteries but not in Lithium.