Hearing aid batteries expire because the adhesive of the sticker will eventually let air inside of the battery cell and drain the battery. ![]() As soon as the battery is activated the chemical reaction cannot be stopped or reverted. Over time the adhesive of the sticker can weaken and allow air to enter the battery. The sticker is what prevents a battery from discharging its electrical potential early but it is also the weak point of the system. To activate a battery, a consumer removes the sticker and the battery comes to life. This is why batteries come packaged with a sticker that covers the air cell ports on top of the battery. The chemistry that makes up a zinc-air battery is unique, the oxygen in the air is the active ingredient that the battery uses to produce electricity. So if you are going to run the risk of using an expired battery, it would be wise to have a spare set of fresh batteries on hand in case your battery unexpectedly dies. If it expired a few years ago you may get a full life or it could be completely dead as soon as it is removed from the package. For example, if you typically get 7 days of use out of each zinc-air battery that you use, after it has expired by 6 months you might get the full life of 7 days or possibly get half (3.5 days). You can use a hearing aid battery after it expired however you should not expect to get the length of time out of the battery as one that is freshly made. I have done quite a bit of research on hearing aid batteries which I will share with you.Ĭan you use a hearing aid battery past its printed expiration date? Knowing just a little bit of information about hearing aid batteries can save you a lot of money over the life span of your hearing aid. Typical shelf life of the battery is 3-4 years if stored correctly. This date tells you when you should use the hearing aid battery by to expect a full life span out of it. Each battery package has an expiration date or shelf life printed on the back of it.ĭo Hearing Aid Batteries Expire? Each zinc air battery manufacturer does print an expiration date on the package of each battery. Should you seek further advice, our blog is home to a number of valuable resources including reviews, tips, and guides.It is quite often that I have patients who come to their hearing aid appointments with a box full of hearing aid batteries that are expired and wanting to know if they can still use the batteries. It contains a mix of branded batteries so you can test and identify which battery is right for your device. If you are unsure which battery will best suit you and your hearing aid, try one of our trial packs. Which Size 312 Hearing Aid Batteries are Best? Whether you have your go-to batteries or are new to hearing aids, we have the size 312 hearing aid batteries for you. Shop size 312 hearing aid batteries from: Which Brands Do We Dispense?Īt Hearing Direct, you will find batteries from some of the world's leading, and most recognised manufacturers. Our size 312 hearing aid battery packs include 6 to 8 cells and we stock multipacks of 60 to 120 batteries at a reduced price. In fact, they're one of our specialities. Hearing Direct is home to an abundance of hearing aid batteries. ![]() Buy Size 312 Hearing Aid Batteries Online
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