4.Not waiting for the battery to fully drain before recharging
Allowing the battery to run out frequently can cause the voltage to drop too low, which reduces battery lifespan and causes the device to drain power more quickly. The lifespan of a hearing aid battery depends on the battery type, device features, power requirements, the user’s hearing level, and environmental conditions. Therefore, when your hearing aid battery is running low, the device will emit a warning sound to notify you that it’s time to change or recharge the battery.