These batteries are replacement batteries for size 675 hearing aid batteries. These hearing aid batteries are 1.45 volts. There are 60 batteries total per box and they have a 3 year shelf life, but when activated (tab is removed) shelf life becomes much shorter.
Dedicated high quality service and product at 1/2 the cost from retail stores. No more hunting down for out of stock 675 hearing aid batteries. It is best to order the 10 pack bundle of 6 batteries per pack.
Sometimes the batteries are static prone, but for the most part they work very well.