Hearing aids can have either disposable batteries or rechargeable batteries. Disposable battery life depends on many things including, the size of the battery, hours of use and hearing aid programming. Based on an 8 hour day, the battery life ranges from 2-3 days for the smallest size to 10-14 days for the largest battery. For rechargeable batteries, the hearing aids are charged every night. A full charge can last from 8 to 24 hours depending on the hearing aid brand and size of rechargeable battery. Book an appointment today and find out more about the wide selection of modern hearing aid solutions.