noun
A type of battery that is commonly used in small electronic devices such as remote controls, flashlights, and toys. It is named for its size, which is smaller than AA and larger than AAAA batteries.
The AAA cell is a common type of battery used in various electronic devices.
I need to replace the AAA cell in my remote control.
Don't forget to grab some AAA cells for the flashlight.
The AAA cell of the team, he always comes through in clutch moments.