These batteries are the new generation of alkaline batteries and full of the latest technology. They have developed in response to the high energy requirements of the use of the latest generation appliances and high drain devices, like MP3/ 4 players, GPS equipment and digital cameras. The new components used in the batteries give results that until now alkaline batteries could not reach as far as duration is concerned. They will give you that much more independence when using the latest generation of digital appliances. This selection of single use alkaline batteries are comparable in quality to any other leading brands and are available in all the most popular sizes from TruPower, a brand that Rapid is proud to stock. They have a longer shelf life than some other current premium brands, exceeding five years.