With an impressive shelf life of up to seven years, these Duracell Industrial C batteries are ready to use when you need them. Duracell Industrial, commonly recognised by its previous name, Duracell Procell has been designed with the professional user in mind, with the capability of tolerating temperatures as low as, -20c and as high as 54c, these C size batteries are suitable for all work environments. Although ideal for a multitude of uses, the Duracell Industrial size C battery is especially ideal for high energy consuming devices, such as medical equipment and torches.