Have you bought from "Hearing Aid Battery Shop"

Expiration dates don't matter for me. I found 4 y/o batteries recently, put em in my CI and they lasted 3 days.
 
ambrosia said:
I have no idea how long the Costco batteries last, but awhile. At least 2 weeks probably, I just really don't pay that much attention. It doesn't seem like I change them very often. I bought a new package of the them last July when I got my new aids, I went up in power so I needed 675's instead of 312's and I still have the same package I can tell you that much. Wait, I counted, I still have 21 of the 40 batteries left. I have 2 aids, but I don't wear my left one often so I'm mostly changing batteries for one hearing aid.

But I also never know when my period should be coming either, I guess I'm a bit oblivious.
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When you take the sticker off the battery, put it on a calendar & mark whether its the right or left HA. That way you can see when you last changed the battery.
 
LoveBlue said:
When you take the sticker off the battery, put it on a calendar & mark whether its the right or left HA. That way you can see when you last changed the battery.
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That's actually a really good idea!!
 
I would be concerned how old the batteries are and if they're black-market one ones that could harm my HA.
 
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