A door closer to adapt a storage device having a body and a swinging door for automatic closing includes a hinge having first and second hinge elements. Each of the hinge elements include a length dimension and a height dimension parallel the axis of the hinge and are configured to rotate about the axis. A panel is provided which is coupled with the second hinge element and has a length dimension greater than a length dimension of the first hinge element. The door closer is configured via a spring force of a biasing device to bias a swinging door of a storage device toward a closed position against the body of the storage device, at least in part via an interaction between one of the hinge elements and the door, and an interaction between the other of the hinge elements and the body via the panel.