So, I go to the grocery store to buy those small circular batteries from my external microphone. You know those batteries that were used to power the LCD Donkey Kong games. I search and search for them but to no avail. I ask one of the friendly Albertson's workers and he points me in the right direction. I find the correct size, pick up the nifty package, and upon further inspection, I see these words:

Energizer
EZChange
Hearing Aid Batteries
Size 675

Hearing aid batteries. Apparently, they are no longer known as Donkey Kong batteries, but hearing aid batteries. And yes, I felt a little strange at the check out counter buying them.