Detailed Product Description Hearing aid battery,ZINC air Battery, button batteryZinc Air Button cell A10(Hearing aid battery) Model no.: A101.4V Heavy Duty Zinc Air.Other type available: A10, A13, A312.A675Features:1. Super Heavy Duty, Max output drain> 4Ma.2. 100mAh Super long life.3. Low internal resistance4. Standard dial pack of 6 cells5. OEM private name packing available6. Patented.