Either bad batch or counterfeit batteries
Normally, my hearing aid batteries last a week. This is also true for the big box stores brands. I purchased a “card” of 8 pack, 312, batteries with an expiration date of March 2021. These batteries only last one to two days. This is true for all the batteries in the packs. Either Duracell had a bad day or I purchased counterfeit batteries from my pharmacy.