With the improvement of people's economic level and the accelerated pace of life, more and more consumer electronic products such as mobile phones, tablets and digital cameras are quickly integrated into daily life. These electronic products have also become an indispensable part of the driving process of the owner. However, in the process of using electronic products, it is inevitable that there will be a shortage of power. In order to avoid the trouble caused by insufficient power, the car charger is really necessary for purchase.
"After the car is turned off, the car charger must be unplugged, otherwise the battery will lose power." This statement is seen in many places. In fact, most of the car's cigarette lighter is now ACC, not regular. That is to say, the car can be powered off when it is turned off. This is a safe practice. Even if the vehicle is turned off, the car charger generally has no current output when there is no load, so it is not unplugged, and only a small LED lamp is working, and the lost battery power can be neglected. My car charger is inserted all year round, without any problems.
"The car charger must be turned off and then plugged in, otherwise it is easy to burn." For many car chargers, this is indeed a probability problem. This tests the car's anti-impact ability. Not all car chargers need to be turned off. Plug and unplug after power off, for example, I am using the highest DC40V plug-in live shock, you can plug and unplug without any problem.
Many gadgets on the car use a cigarette lighter to take power, so many people will buy a car charger for one to two or even three cigarette lighter extensions, but the same product often sees someone saying that it is easy to use. Some people say that the fuse is burned, which may be because the device exceeds the maximum power of the expansion port. Especially the car refrigerator, car vacuum cleaner, this power must be seen first, the power is how much, look at the expansion port of your car charger can not be used, generally marked in the box or instructions.