The lifespan of hearing aids can vary depending on factors like their quality, how well they are maintained, and how often they are used. On average, hearing aids can last anywhere from 3 to 7 years. Some people may need to replace their hearing aids sooner due to changes in hearing or advances in hearing aid technology. Regular maintenance and servicing by an audiologist can help extend the life of your hearing aids. If you notice reduced performance or changes in your hearing, it may be time to consider replacing your hearing aids.