If the hearing aids have built in rechargeable batteries, will 122 degrees for three hours each night in this device shorten the life of the batteries? Should these 'dehumidifiers' be used only with aids that have their batteries removed?
Here is the seller's response to this question on Amazon:
Question: Can you leave batteries in when you dry them?
Answer: Hi. It is recommended that you remove the battery before drying as the increased heat may result in running the battery down prematurely. We have however received feedback from some users that they leave the battery in and it doesn't seem to affect the battery life. This may be as a result of the type of battery used but the manufacturers official position is that it is better to remove the battery. see less
By Tools Downunder Seller on January 16, 2019
Here is an article regarding drying challenges for rechargeable hearing aids:
Hearing aid manufacturers typically recommend that the temperature not exceed 95° F for their rechargeable hearing instruments, but many dryers used today reach temperatures above 100° F, with some significantly above that temperature.
hearinghealthmatters.org
Here is the item on Amazon. Yes, over $100.
Amazon.com: DryBoost UV by Dry & Store | Maintenance System for Your Rechargeable Hearing Aids or Amplifiers - The Perfect Combination of Drying, Sanitizing, and Charging: Health & Personal Care
www.amazon.com
Bottom line: Check with whoever supplied your hearing aids. If they are rechargeable, ask if any specific drying device or temperature would impact the longevity of the built-in battery or if it would affect the warranty. Oh, and make sure you can trust your audiologist. Some of them strike me as having similar characteristics to used car salesmen. Yes, there are some good, honest, helpful, sincere used car salesmen out there. But finding one can be a challenge.