CHARGING AND MUTUAL CHARGING APPARATUS FOR COMBINED INTELLIGENT DEVICES, AND CHARGING METHOD

A charging and mutual charging apparatus for combined intelligent devices, and a charging method, relating to the field of charging of intelligent devices. The charging and mutual charging apparatus for combined intelligent devices comprises a main device and an accessory. The main device comprises a main input circuit, and the main input circuit comprises a first control module (CPU1), a first battery (1), a first battery management module (IC1), a first switch (Q1) and a first charging port (V1). A secondary input circuit comprises a second control module (CPU2), a second battery (2), a second battery management module (IC2), a second switch (Q2) and a second charging port (V2). The first charging port (V1) and the second charging port (V2) both can control the first switch (Q1) and the second switch (Q2) by means of a pin. The first control module (CPU1) is electrically connected to the second control module (CPU2) by means of a control protocol. Mutual charging can be carried out between combined devices.