While there are some rare instances that a hearing aiduses a rechargeable battery or a long-life disposable battery, the majority of hearing aids use one of five standard Button Cell Zinc-air batteries. These types are typically referred to by their common number name or the color of their packaging.
They are typically loaded into the hearing aid viaa rotating battery door, with the flat side (case) as the positive terminal (cathode) and the rounded side as the negative terminal (anode).
These batteries all operate at 1.35 Volts.
The type of battery a specific hearing aid utilizes depends on the physical size allowable and the desired lifetime of the battery, which is in turn determined by the power draw of the hearing aid device. Typical battery lifetimes run between 1 and 14 days (assuming 16 hour days).
| Type/ Color Code | Dimensions (Diameter×Height) | Common Uses | Standard Names | Misc Names |
| 675 | 11.6 mm × 5.4 mm | High-Power BTEs, Cochlear Implants | IEC: PR44, ANSI: 7003ZD | 675, 675A, 675AE, 675AP, 675CA, 675CP, 675HP, 675HPX, 675 Implant Plus, 675P (HP), 675PA, 675SA, 675SP, A675, A675P, AC675, AC675E, AC675E/EZ, AC675EZ, AC-675E, AP675, B675PA, B6754, B900PA, C675, DA675, DA675H, DA675H/N,DA675N, DA675X, H675AE, L675ZA, ME9Z, P675, P675i , PR44, PR44P, PR675, PR675H, PR675P, PR-675PA, PZ675, PZA675, R675ZA, S675A, V675, V675A, V675AT, VT675, XL675, Z675PX, ZA675, ZA675HP |
| 13 | 7.9 mm × 5.4 mm | BTEs, ITEs | IEC: PR48, ANSI: 7000ZD | 13, 13A, 13AE, 13AP, 13HP, 13HPX, 13P, 13PA, 13SA,13ZA, A13, AC13, AC13E, AC13E/EZ, AC13EZ, AC-13E, AP13, B13BA, B0134, B26PA, CP48, DA13, DA13H, DA13H/N, DA13N, DA13X, E13E, L13ZA, ME8Z, P13, PR13, PR13H,PR-13PA, PZ13, PZA13, R13ZA, S13A, V13A, VT13, V13AT, W13ZA, XL13, ZA13 |
| 312 | 7.9 mm × 3.6 mm | miniBTEs, RICs, ITCs | IEC: PR41, ANSI: 7002ZD | 312, 312A, 312AE, 312AP, 312HP, 312HPX, 312P, 312PA, 312SA, 312ZA, AC312, AC312E, AC312E/EZ, AC312EZ, AC-312E, AP312, B312BA, B3124, B347PA, CP41, DA312, DA312H, DA312H/N, DA312N, DA312X, E312E, H312AE, L312ZA, ME7Z, P312, PR312, PR312H, PR-312PA, PZ312, PZA312, R312ZA, S312A, V312A, V312AT, VT312, W312ZA, XL312, ZA312 |
| 10 | 5.8 mm × 3.6 mm | CICs, RICs | IEC: PR70, ANSI: 7005ZD | 10, 10A, 10AE, 10AP, 10DS, 10HP, 10HPX, 10SA, 10UP, 20PA, 230, 230E, 230EZ, 230HPX, AC10, AC10EZ, AC10/230, AC10/230E, AC10/230EZ, AC230, AC230E, AC230E/EZ, AC230EZ, AC-230E, AP10, B0104, B20BA, B20PA, CP35, DA10, DA10H, DA10H/N, DA10N, DA230, DA230/10, L10ZA, ME10Z, P10,PR10, PR10H, PR230H, PR536, PR-10PA,PR-230PA, PZA230, R10ZA, S10A, V10, VT10, V10AT, V10HP, V230AT, W10ZA, XL10,ZA10 |
| 5 | 5.8 mm × 2.1 mm | CICs | IEC: PR63, ANSI: 7012ZD | 5A, 5AE, 5HPX, 5SA, AC5, AC5E, AP5, B7PA, CP63, CP521, L5ZA, ME5Z, P5, PR5H, PR-5PA, PR521, R5ZA, S5A, V5AT, VT5, XL5, ZA5 |
In Australia, hearing aid and cochlear implant batteries are classified as a medical item by the Australian Taxation Office (ATO) which means they are exempt from GST. No GST is incurred in the postage fee for orders comprised of only hearing aid and cochlear implant batteries, but you must notify us prior to placing the order. If the order includes an item which attracts GST, the postage fee is subject to GST. All orders from outside Australia are exempt from GST.