Bests & Worsts Reviews from Amazon

I bought these batteries for my mom's hearing aid in September 2016. My mom had been using an existing supply of batteries and only recently went to use batteries I ordered (sold by HearingAidPower), and each battery she tried did not work. My dad, a retired electrical engineer, got to use one of his many tools piled up in their garage and measured the voltage of the batteries my mom tried and other batteries that came in the same box, and found that the batteries had less than the 1.4 volts it should have (some had voltages that were less than 1.0). There are many positive reviews posted, and perhaps our bad batch of batteries is just a fluke, but I thought I'd write a review to provide a counterpoint to the good reviews. P.S.- The label on the box says "12-2016". I presume this to be the expiration date, which goes against the "shelf life 2-3 years" claim in the About the Product section for this product. Good luck with your order.