If a hearing aid is not in use, what should be done with the battery?

Removing the battery from a hearing aid when it's not in use is considered the best practice for several reasons. When the hearing aid is left unused with the battery still inside, there is a risk of the battery leaking, which can damage the device and may lead to costly repairs. Removing the battery helps to prolong the life of both the battery and the hearing aid, as it prevents corrosion from battery leaks. Additionally, this practice ultimately ensures that the hearing aid is ready to use when needed, without the worry of a dead battery or potential damage.

Storing the battery in a safe place can be important, but it does not provide the same level of protection for the hearing aid itself. Leaving the battery in the device can lead to issues over time, and charging a battery overnight is not applicable in this instance, as standard hearing aid batteries are typically not rechargeable and therefore do not require charging.