The packaging size with twenty batteries is a good size and in an emergency you here again in new batteries handy. The batteries are each about ten units - with plastic wrap - packed. The workmanship is good and can compete with other batteries.
My comparison object are a private label batteries. Here the Amazon batteries can definitely compete. In my case, the batteries are so far from the life well. Thus, one of my criteria for batteries is met: Durability. On top of that so far nothing has been discontinued and therefore the first look at the processing has not getrügt.
A deduction there yet, few to no information on the composition of the battery. Since it is difficult to really draw comparisons.