With the development of science and technology market, there is basically one smart phone per person, especially with the development of in-vehicle interconnection technology in recent years, the connection between mobile phones and cars is getting closer and closer, which directly leads to the faster consumption of mobile phones, so the in-vehicle charger came into being and quickly spread to most car owners. However, the quality of products is uneven, and the improper use of most car owners causes losses to vehicles.
Convert the 12V voltage of the cigarette lighter socket into 5V USB voltage and charge the electronic products through the charging cable. Generally speaking, the vehicle charger converts 12V (car 12V, truck 24V) DC into 5-20V DC to charge the vehicle mobile equipment, which is characterized by low power consumption, simplicity and convenience.
① Take out the car charger before the car starts, so as to avoid the voltage at the start of the car damaging the car charger.
② When the owner is in use, do not use strong chemicals, cleaning agents and strong detergents to clean the charger. Because this will seriously damage the function of the car charger.
③ As an electronic product, the car charger is advised not to continue using it if it is wet or flooded, so as to avoid potential safety hazard caused by internal short circuit.
④ Get into the habit of unplugging the car charger after flameout.
The USB specification requires that the current overload protection should not exceed 5A. The reason why the vehicle charger needs overload protection is that when the output current is too large and exceeds its normal output value, the life of the charger components will be shortened, or it will be damaged or even burned because of too high temperature. Therefore, the car charger used in the car must have overload protection measures.
The input voltage of car chargers on the market is basically 12V—24V, the output voltage is 5V, and the output current is about 1A-4A. If the mobile phone is charging when providing navigation function, the inferior charger will not only fail to provide normal charging, but also the power will continue to drop.
Buy products certified by regular manufacturers, and don't buy and use three-without-products, otherwise it is easy to cause quality problems or potential safety hazards.