I use these batteries with four series to power a radio (quite old it is true, but useful all the same!) Of course, this is not a continuous use and I expect that I use batteries that do not discharge alone or they start to leak and damage my device. With those Duracell batteries, I am fulfilled in my expectations, they are perfectly reliable over time, I've never had any problems with the high initial power and allows me to have to change the batteries rarely, no need to care. The price of about 2 euros each is quite reasonable for this comfort. The packaging in packs of four is perfect for my use. I am very satisfied with this product.
