The Energenie EG-BA-ZA13-01 is a set of 6 pieces of ZA13 zinc-air batteries specifically designed to power hearing aids. These single-use cells provide a voltage of 1.4V and a capacity of 255mAh, ensuring your device operates reliably for its intended duration. Measuring just 5.4 x 7.9 mm, these compact batteries fit precisely into compatible devices without adding bulk. They come in a convenient blister pack, making them an easy choice for anyone needing a dependable power source for their daily hearing assistance.