Catalog > Consumer Electronics > Batteries and Battery Accessories > Miscellaneous Hearing Aid Battery Hearing Aid Battery 0% Mercury DA312 Rayovac 312 Hearing Aid batteries 1,45V (Pack of 4) Call for Price Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Additional Information Model DA312 Electrochemical System Zinc-Air Nominal Voltage 1.4V Nominal Capacity 160mAH Size 312 Packed 4 Pcs in Blister Pack Rechargeable False Usage Hearing Aids