Abstract: Provided is a method of auto-adjusting the settings of a vehicle. The vehicle includes a first NFC device. The method includes: determining whether an electrical device is an authorized device through the first NFC device communicating with a second NFC device of the electrical device, the electrical device storing an identification information; obtaining a user's preference settings to the vehicle according to the identification information from the electrical device upon a condition that the electrical device is the authorized device; and adjusting the settings of the vehicle with the user's preference settings.

Abstract: A charger protection device (20) includes an oscillator (201), a resistor (204) electronically connected to the oscillator, a capacitor (203) electronically connected to the resistor and a switch (202). The oscillator (201), the resistor (204) and the capacitor (203) form an oscillating circuit. The switch is electronically connected to the capacitor, and a voltage across the capacitor is input to the switch.

Abstract: A charger protection device (20) includes an oscillator (201), a resistor (204) electronically connected to the oscillator, a capacitor (203) electronically connected to the resistor and a switch (202). The oscillator (201), the resistor (204) and the capacitor (203) form an oscillating circuit. The switch is electronically connected to the capacitor, and a voltage across the capacitor is input to the switch.

Abstract: A battery charging system charges a battery using a charging circuit. The battery has an input port for receiving a charging current and a thermistor electrically connected to an output port. For battery temperatures above a threshold temperature, a resistance produced by the thermistor increases as the battery temperature increases. The charging circuit includes an input connector electrically connected to the output port of the battery and a resistance measuring circuit for measuring the resistance produced by the thermistor of the battery. A current generating circuit produces a charging current according to the measured resistance, and as the measured resistance increases, the charging current produced by the current generating circuit decreases. An output connector of the charging circuit is electrically connected to the input port of the battery for providing the charging current to the battery.

Abstract: The present invention relates to an electronic device, comprising: a battery; a breaker, coupled to the battery, being activated to brake a circuit while a current flowing therethrough exceeds a default current value of the breaker; and a switcher, having an end coupled to the breaker and another end being grounded, being activated to a short circuit state for directing the current to the ground and enabling the current to be larger than the default current value while the switcher detects an abnormal status.