BATTERY MAIN BOX, CHARGE-DISCHARGE CIRCUIT, AND POWERED DEVICE

A battery main box, a charge-discharge circuit, and a powered device. The battery main box includes two first electrode circuits and one second electrode circuit. A switch is connected between the two first electrode circuits. The two first electrode circuits are respectively configured to be connected to two powered loads and two batteries, and the second electrode circuit is configured to be respectively connected to the two powered loads and the two batteries. The battery main box in the embodiments of the present application includes the two first electrode circuits and the one second electrode circuit, and the switch is connected between the two first electrode circuits.