The CR1632 3V coin battery is a battery pack of 5 batteries. The  CR1632 3V coin battery is designed to be used in many different devices. It can be used in watches, calculators, remote controls, and other small devices. The CR1632 3V coin battery is 3 volts and is made of lithium-ion. The  CR1632 3V coin battery has a 10-year shelf life.