Voltacell Zinc-Air Power Cells 312

The Voltacell zinc-air power cells in size 312 offer a continuous and stable power supply for compact hearing amplifiers. The zinc-air system activates only when the protective tab is removed through contact with ambient oxygen, ensuring a long shelf life without noticeable loss of capacity. Each cell is fitted with an easy-grip brown protective tab that makes precise insertion into the device's narrow battery compartment noticeably easier. The handy dial blister reliably protects the remaining cells in storage from premature activation.