The method of car charger to buy the car charger

At present, the copycat car charging all over the market, so it is not only easy to cause short circuit phenomenon, even in severe cases will lead to mobile phone or car spontaneous combustion, therefore, buy car charger must be careful.
1, excessive car charger damage mobile phone
The principle of the car charger is to convert the voltage to 5V output to digital products, as long as the voltage and current is not exceeded, the damage is basically equal to zero. When using the car charging, it is best to start the car, and then let the phone charge. Because the vehicle starts the moment, will produce too much current, may impact on the phone.
2, poor car charger damage battery
Car charger, car cigarette lighter is to use lighter hole as a power socket, and the socket has a fuse, when the current reaches the acceptable range of overload, the fuse will fuse immediately, play a protective role, so the impact, much of the car battery will not of course, the premise is not an inferior car charger. It is best to charge the car after the engine starts, or when the car ignition, the car battery voltage will affect the charging effect, or even damage the car charger.
Do not over discharge the battery under the condition of flameout, for example, do not turn off the headlights in the flameout state. In addition, the car stalled after some owners may not remember to unplug the car charger, car charger now although no current output, loss of power is not enough to worry about, but long time it will cause a certain impact on the car's battery loss, so everyone in charge after the best form promptly pulled out car charging habits.
Car charger Guide
1, to understand their own car cigarette lighter output voltage
The output voltage of the car is 12V, the truck is 24V, the general purpose of the car charger (12V) most suitable for cars, if it is other models need to choose the corresponding voltage standard. Now there are a lot of car charger has been able to do 12V-24V standard, that is, all models are applicable.
2, to understand the car charger automatic protection function
The car charger has the function of over voltage, over current, over heat, short circuit protection, etc. the outer shell is preferably made of ABS flame retardant and environmental protection material.
3, pay attention to the voltage and current size
When you buy a car charger, pay attention to the voltage and current matching equipment, such as iPhone is 5V/1A, tablet PCs, mobile power supply is mostly 5V/2A. Dual USB car charger for mobile phone and tablet computer at the same time if the charge, the total current car charger at least 3A or above, otherwise the charging speed will not only greatly decreased, excessive heat and even bad filling equipment.
4, to understand the purchase of the charger is the total current
Regular products will be marked on the charger output current is the number of A, if the charger has been charged to charge the phone + Tablet PC is not only slow and large heat, that is, the current is not up to standard.
5, choose a reliable brand
Reliable quality of the brand can be guaranteed, the use is also assured that this truth is not to say more. Although the price is generally higher than the poor quality car charger, but if the cheap, the quality of the problem, it is certainly no complaints. In addition, in order to avoid competing for charging and fight, it is best to choose at least 2 USB interface car charger.
How to use the car charger
1, the car head into the cigarette lighter at the bottom, through the standard USB interface output dc. The PS: cigarette lighter with two spring sheets to fix the cigarette butts, so in the car charger into the cigarette lighter side from the spring track insert, and not against the spring insert, otherwise it will cause damage to the cigarette lighter and car charger.
2, check the voltage, current and other electronic design parameters in full compliance with product specifications.
3, connected to the USB data cable can be charged for mobile phones, tablet PCs and other digital devices. PS: in front of the device, pay attention to the output of the charger, some cars do not support the charging current of the tablet PC.