Get reliable hearing aid performance with these batteries Protect and power the devices with these hearing aid batteries. They are made with PowerSeal technology, last a long time and are free of mercury. They are more environmentally friendly and they extend the life of your hearing aid. They are packaged in a practical and lockable container. - Battery operation you can trust - Lasts up to 4 years on the shelf - Mercury-free - Performs in temperatures from -20°C to 70°C -

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