Charger testing device and charger testing system

The utility model discloses a charger testing device and a charger testing system. The charger testing device comprises a shell and a display panel, the shell is provided with a charging interface, a containing space is formed in the shell to place a battery unit, the battery unit is suitable for supplying power to a tumor electric field therapeutic instrument, and the charging interface is suitable for being connected with a charger; the display panel is connected with the charging interface, a parameter detection unit is arranged on the display panel, the parameter detection unit is suitable for detecting charging parameters of the battery unit, and the display panel can display the charging parameters of the battery unit and control the charger to display the state of the battery unit according to the charging parameters. The charging parameter and the state of the battery unit are used for representing the charging performance of the charger. According to the charger testing device provided by the utility