And who made this discovery?
Would you believe it was a 14-year-old boy.
His name is Ethan Manuell of Rochester, Minnesota, He learned that batteries can last up to 85 percent longer when left exposed to oxygen, after removing the adhesive tab, before being inserted into the hearing aid itself.
Zinc Air hearing aid batteries have a tab or sticker attached to the back of them.
Ethan learned that the best way to improve battery life is to remove the tab from the back of the battery , then wait five minutes before inserting the battery into the hearing aid.
This will allow ample time to air-charge the battery to receive essential oxygen.
So, next time you need to change your batteries, try his trick so you can get more life out of them.