We have discharged these alkaline cells with a constant load resistance of 15 ohms. The discharge voltage was set at 0.5V. The method we have chosen because it probably is our most common use in children's toys the next. The measurement showed a capacity of 3220 mAh, which is more than the typical value according to Wikipedia by 15 percent. So you can certainly count on the longer-living these cells. At very low discharge eg in remote controls or radiator thermostats, the capacity is even higher. Sailed the cell is not in full discharge in this experiment.
Duracell has built into the sheath a fitness check, which we find quite useless, since it, when the battery is responding to the open circuit voltage of the battery and this breaks until almost empty. Built-in equipment, we have the test never used, because we open the battery compartment normally again when nothing else will work. The packaging seems a bit too complicated, here you can make the product safe even slightly cheaper. For this package size, however, has a handy flap of cardboard, with which the package may be easily and reliably resealed.