Assembled power supply aging device

The utility model relates to the field of power supply aging detection, in particular to an assembled power supply aging device, which comprises a cabinet body, a power pack and a connecting assembly, the cabinet body is provided with a containing cavity, the connecting assembly comprises a fixing plate, a connecting plate and a positioning part, the fixing plate is fixedly connected to the cavity wall of the containing cavity, and the cavity wall of the containing cavity is provided with a sliding groove. The connecting plate penetrates through the sliding groove and is in sliding fit with the sliding groove, the cavity wall of the containing cavity is fixedly connected with a first power interface, one side of the connecting plate is provided with a second power interface, when the connecting plate slides to the limiting position of the other side, the connecting plate is arranged on the fixing plate in parallel in the Z-axis direction, and the second power interface is in clamping fit with and electrically