Battery testing device

Some embodiments of the present application provide a battery testing device, the battery testing device comprises a support and a bearing platform connected to the support, the bearing platform comprises a tray, a mounting rack and a connector, the tray is used for placing a battery, the mounting rack is connected to the tray, the connector is provided with a first chute, and the first chute is provided with a second chute. The connector is slidably connected to the mounting rack through the first sliding groove, and the connector is used for being electrically connected with the battery. According to the structure, the connector is slidably connected to the mounting frame through the first sliding groove, and the connector can move relative to the mounting frame to change the position in the tray, so that the connector can move relative to the battery arranged on the tray, and the connector can be connected with batteries of different models; and the connection between the battery and the connector is convenient, so that the convenience of testing the battery is improved.