TAKING THE CPA EXAM ................................................................................... 12. Problems at a Prometric Testing Center.............................................................
Hearing aid batteries last anywhere between five and 14 days depending on the above factors. You will know it's time to replace your hearing aid batteries when the aids start beeping. One solution to save money and make batteries last longer is to purchase rechargeable batteries.
Hearing aid batteries use air as an energy source. The tab seals the air hole on the battery. Once the tab is removed, it takes approximately ten seconds before the hearing aid battery is activated and the battery compartment can be closed. Please do not remove the tab before the hearing aid battery is used. Reattaching the tab will not prolong the service life of the battery.