Procell by Duracell batteries are built to higher standards, to perform better in high-drain applications. They’re the top choice for professionals . They’re bulk packed in boxes of 10, reducing packaging costs and resulting in a lower price for you. Procell by Duracell is the perfect continuation of the reliable power that Procell users have enjoyed for years. 10 batteries per boxDesigned for professionalsPerformance guaranteedOperating temperature-20°C to 54°CTypeAlkaline Manganese Dioxide15800mAh