Panasonic LR6EGE/4BP Evolta AA Alkaline Batteries The NEW Panasonic Evolta AA battery can boast at being regonised by Guinness World Records as the worlds longest lasting AA alkaline battery. The UK battery market continues to be dominated by alkaline, as today s high power products require longer lasting batteries, so this new range will be ideal as it will last longer than any other alkaline AA out there today. These batteries also provide a much longer shelf life than previous alkalines in the market at the moment. Also known as - 15AU, LR6, X91, AA