Most helpful critical review
6 of 7 people found the following review helpful
No lifespan and causing intermittent hearing aid performance
on September 24, 2014
Batteries are apparently older or just don't have the "juice" in them: began having hearing aid problems and finally the seller said "your battery is weak." I said "can't be--it's new today !". I was having intermittent problems, which I found a little strange for a battery problem, but once I went back to another brand battery, those problems disappeared. These batteries sometimes last only a day or few hours, compared to maybe 5 days by the other vendor. This has happened through several "6-pack" cards. So, I'm stuck with a bunch more, but I don't count on them -- I take SEVERAL pairs of spares if I use these, and not just one. And no, I didn't remove the foil until right before use, and I don't keep them in a refrigerator, and they don't sit in a car, etc. etc.