coin cells
Flat round batteries
Coin cells are small, flat, round batteries resembling coins or buttons.
They power watches, calculators, hearing aids, and small electronics.
Also called button cells or watch batteries.
The designation typically includes letters and numbers indicating chemistry and size: The remote takes a CR2032 coin cell.
- buttonDisc through a hole
- batteriesPortable energy storage units
- flatLacking vertical variation
- replacementWhat takes another's place
- battery compartmentEnclosure holding power cells
hearing aids · voltages · low power · remote · wristwatches · watch · anode · medical implants · round · calculators · key fobs · zinc · electrochemical · lithium battery · digital thermometers · lithiums · tiny · recycling programs
- Battery terms9-volt, alkaline, lithium, lithium-ion, nickel-cadmium
- battery typeslithium ion, nickel cadmium, lead acid