Sizes – Batteries will come in four different sizes. For easy identification the sizes are color coded under the same industry standard regardless of brand. From smallest to largest, the sizes are 10 (yellow), 312 (brown), 13 (orange), and 675 (blue).
Life span and storage – A battery’s size and a hearing aid’s programming all factor into a battery’s lifespan. Generally, expect four days to two weeks. Store batteries at room temperature in a dry place. Do not store batteries in the refrigerator as it won’t prolong battery life and moisture could damage them. Go ahead and move them from their place next to the relish while nobody is watching. Avoid storing batteries in pockets or with loose change. Contact with metal could activate the batteries and render them useless. Batteries are given a four year expiration date from the time they’re manufactured. Experience at UpState Hearing has proven that batteries begin to deteriorate one year after their manufacture date.
How they work – Modern-day batteries no longer contain mercury and are what’s called zinc-air batteries. They are activated and “turned on” as soon as the sticker is removed. Oxygen activates the zinc and once the battery is activated it remains so until the battery is completely dead. When installing a new battery, remove the sticker and give the battery a couple minutes to activate before installing it into the hearing aid.
Where to buy – CHIC clients at UpState receive free batteries from our offices. Batteries can be found at electronic stores, pharmacies, online or even big box stores. Regardless of where you get your batteries, be sure to check the expiration date. The best bet is to buy them from a vendor that is constantly turning over its stock. Disposal – Batteries for hearing aids no longer contain mercury but still need to be recycled. UpState will accept old batteries at any of their offices during their respective business hours if you can’t find your community’s transfer station. Redding’s transfer station accepts batteries during set hours. Chico is home to several recycling centers.