Hearing aid batteries A10 13 312 675 1.4 Types: A10,A13,A312,A675 2.High quality with stable performance Hearing aid batteries A10 13 312 6751. Super Heavy Duty, Max. output drain > 4 mA2. 100mAh Super long life3. Suitable for digital hearing aids4. Low internal resistance5. Less sound distortion6. Standard dial pack of 6 cells7. Customer company name packing available