How Much Do Hearing Aid Batteries Cost?

Hearing aid batteries are an ongoing cost for many hearing aid users. Understanding your options — including free NHS batteries — can help you manage this expense effectively.

Disposable battery costs

Most hearing aids use small zinc-air disposable batteries that come in four standard sizes, colour-coded for easy identification:

• Size 10 (yellow): £2–£5 for a pack of 6 — lasts 3–7 days
• Size 312 (brown): £2–£5 for a pack of 6 — lasts 5–10 days
• Size 13 (orange): £2–£5 for a pack of 6 — lasts 6–14 days
• Size 675 (blue): £2–£5 for a pack of 6 — lasts 9–20 days

Annual costs for disposable batteries typically range from £20 to £100 per hearing aid, depending on the battery size and usage hours.

Free NHS batteries

If you have NHS hearing aids, replacement batteries are provided free of charge. You can collect them from your NHS audiology department, and many departments also offer a postal battery service so you don't need to visit in person.

Rechargeable hearing aids

Many modern hearing aids are rechargeable, eliminating the need for disposable batteries entirely. While rechargeable hearing aids tend to have a higher upfront cost, they save money and hassle in the long term. A single charge typically lasts 18–24 hours of use.

Where to buy batteries

Hearing aid batteries are available from audiologists, high-street hearing care providers, pharmacies, and online retailers. Buying in bulk online often offers the best value.