The Duracell DL1620 CR1620 Lithium Coin Cell Battery is a battery primarily designed for use within small electronic devices such as remote controls, calculators, watches and motherboards. This unit boasts a power output of three volts and is seen as a direct replacement for the CR1620 series. Offering a stable voltage for multiple uses, the DL1620 is employed in devices where low nominal power output is required with only sporadic needs for a higher current. It is two millimetres thick and weighs fifty grammes. One of the aspects which allows this series to be unique is the fact that it has an extremely long shelf life. The Duracell DL1620 is available in a blister pack of one unit per purchase.