
“How long should these last?” is one of the first questions every new hearing aid wearer asks, usually while staring at a battery that died after four days. The honest answer is: it depends on the size, your hearing loss, and how you use the aids. But there are solid real-world ranges, and this guide…

Open a pack of hearing aid batteries for the first time and you will face a small rainbow of colored tabs and three-digit numbers. Size 10, 13, 312, 675. Yellow, orange, brown, blue. It looks like a code, and in a way it is, but it is a simple one. Once you learn it, you…