1.Nowadays cars generally have a USB interface. If not, you can also use a cigarette lighter to charge your mobile phone with a car charger. But everyone should know that whether it is a USB interface or a car charger, its output power is all It is different, generally there are 5V/5A, 5V/2.1A, 5V/1A, 5V/0.5A. If we use 5V/2.1A to charge a 5V2A mobile phone, the mobile phone will charge very quickly. If we use a 5V/0.5A interface to charge, not only the charging will be slow, but the charging device will also heat up after a long time, and it will even be damaged if it is serious. Cause a fire.
2.Some people say that if the car charger is not unplugged, it will damage the car battery. In fact, after the car is turned off, the whole car will be powered off. Even for some old models, the car will not be powered off. The charger is still powered on after the fire is turned off. There is nothing on your charger, so there is no need to worry about damaging the battery.
3.Some cars have multiple USB ports, so I don’t need a car charger. As I said in the first article, the output power of these USB ports is different, so for the sake of safety, we have to buy one. , The car charger that can charge quickly, at least 5V/2.1A.
4.Will car chargers with multiple interfaces charge multiple devices at the same time, will it slow down the charging? In the current car chargers, each interface is independent, and the output voltage is also fixed, so there is no need to worry at all. If you connect multiple mobile phones, the charging speed will slow down.
5.Some friends like to charge the mobile phone when the vehicle is turned off, because it does not cost gas. At this time, charging the mobile phone uses all the electricity in the battery. The entire car is also in the state of power. After a long time, the battery may lose electricity. At that time, it will be troublesome that the vehicle cannot be started. If it is really necessary to charge, then it is fine to let the vehicle idle for a while.
6. As a car charger as one of the electronic products, car owners should be careful not to be exposed to humid air due to accidental water entry or long-term non-use, which will cause different degrees of corrosion or oxidation to its internal electronic components .
The above is the summary of the old car repair driver. Regarding the use of car chargers, we must not buy inferior products at a cheap price when choosing car chargers. You can take a look at the above. In use, the charging speed is also very fast!