Coin Battery

Created on: 30 July 2012

A coin battery or button cell is a small coin/button shaped battery. The photos below show an example of a CR2032 3V coin battery and battery holder.

These batteries are very often used to keep a real time clock (RTC) running when the main power to a circuit is switched off.

Coin Battery Holder and 3V CR2032 Coin Battery

Coin Battery Holder and 3V CR2032 Coin Battery



Bottom View of a Coin Battery Holder and 3V CR2032 Coin Battery

Bottom View of a Coin Battery Holder and 3V CR2032 Coin Battery