A DC power cord is a type of electrical cord that is used to transfer DC power between a power supply, such as a wall outlet or battery, and an electrical device, such as a laptop or phone charger. The two ends of the cord will typically be connected to a power adapter and the device that is being powered. It is important to be sure that the cord is approved for the voltage and current of the device that is being powered. DC power cords are most commonly found with laptop chargers, but can also be used with other devices that require DC power.