Abstract: A battery identification system and method for an electronic device, and an electronic device are disclosed. A Hall sensor is set in the electronic device, and a magnetic induction component is set in a first-capacity battery, wherein, when the first-capacity battery is in an installation position, the magnetic induction component is in a sensing area of the Hall sensor; and when the first-capacity battery is installed in the electronic device, the Hall sensor senses approach of the magnetic induction component, and outputs a control signal used for identifying the first-capacity battery. With a Hall sensor switch and a magnetic component in the battery, batteries with different capacities used in the electronic device can be identified.