This AA alkaline batteries (LR06-Mignon-AA) of Panasonic, low self-discharge, it can be stored a long time, a continuous and reliable energy delivery. No leaks, suitable for use at low temperatures, (-20till +55 degrees),free of Hg /Cd /Pb,. Panasonic is a first class supplier of batteries of superior quality in non- and rechargeable batteries for industrial purposes. Panasonic's product line has rechargeable and not rechargeable batteries.