Battery voltage detection circuit and device and electronic equipment

The utility model relates to a battery voltage detection circuit and device and electronic equipment. The battery voltage detection circuit comprises a charging module, a voltage detection module, a switch module, a battery connection module and a current detection module, the battery connection module comprises a battery positive electrode detection end and a battery negative electrode detection end; the first end of the switch module is electrically connected with the first detection end of the voltage detection module; the second end of the switch module is electrically connected with the battery anode detection end; the third end of the switch module is electrically connected with the battery cathode detection end; the control end of the voltage detection module is electrically connected with the control end of the switch module; the voltage detection module is electrically connected with the current detection module; the current detection module is used for acquiring a backflow current of the negative el