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Duracell Size 13 Hearing Aid Batteries - Long Lasting Mercury Free Battery The lightweight yet strong Duracell protective packaging keeps your batteries safe, yet easy to open and handle. The extra long EasyTab tab tab makes them easy to hold, remove and replace for a simple process. Description Hear everything with Duracell Hearing Aid Size 13 batteries with EasyTab. The extra-long EasyTab tab makes it easy to handle and the lightweight packaging allows you to open it easily. Duracell Hearing Aid batteries with EasyTab are colour coded so you can easily find the size you need. In addition, Duracell hearing aid batteries feature Duralock Power Preserve technology that allows them to last up to 4 years in ambient storage conditions. Size: 4.3 x 9 x 1 cm (L x W x H). Countries in which the product was manufactured: Great Britain.