[This review was collected as part of a promotion.] A few have failed in 2-5 days. Don't know why. Packaging convenient to use. Haven't tried any others as my hearing aid professional recommends Rayovac as the best.
I thought I was having problems with my hearing devices. And after spending allot of money on other hearing batteries, Not only found out their batteries did NOT last sometimes a DAY!!! But there was nothing wrong with my hearing devices. It was the poor quality of the other batteries. I am EXTEMELY happy with your batteries and will ONLY use your product from now on!!!
I've tried other brands of hearing aid batteries, but found Rayovac lasted about 7 days compared to the others that lasted only about 3 days. The only problem I had with Rayovac was finding them in the stores. They were usually sold out. That's why I decided to order them on-line. However, the first batteries I used from my on-line order only lasted 3 days. I was very disappointed. I'm hoping that was just a one-time thing and the rest of my order will follow the pattern I've come to expect from Rayovac and last 7 days. I would have given this product 5 stars, if it had not been for my most recent experience with them.