Battery abnormality detection circuit, power supply device and electronic equipment

The utility model relates to a battery abnormity detection circuit, a power supply device and electronic equipment, and the detection circuit comprises a voltage generation circuit which outputs a reference voltage; a first voltage division circuit including a first variable resistor fixed to a side surface of the battery; a second voltage division circuit including a second variable resistor fixed to a side surface of the battery; one end of the first variable resistor and one end of the second variable resistor are electrically connected with one end of the battery, and the wire connectors are fixed to the side face of the battery and correspondingly and electrically connected to the output ends of the first and second voltage division circuits. The switch control circuit is connected between the battery and the electric energy output end; and the comparison output circuit receives the first voltage output by the first voltage division circuit, the second voltage output by the secondvoltage division circuit