How to choose a car charger can use for a long time
If there is an urgent need for using a car charger, probably more than ten dollars to buy a, in a few days away. It's no big deal. But if you want to buy a long-term use, high frequency, it is not so simple. How to choose a mobile phone can use for a long time of USB car charger?
Car charger appearance parts:
1, appearance must be good, can't have burr, insert must be convenient and smooth. The contact of the metal to thick, uniform and elastic. The charger plug have difficulty will be very easy to damage.
2, shell comply with Rohs environmental protection standard, hard, flame retardant. The charger will be fever, if you don't conform to the Rohs standard plastic shell, there will be a gas. Plastic in the gas is very severe. Not hard, flame retardant plastic, the charger will be hot baked soft and even fire.
Circuit, the charger circuit structure is roughly the following several kinds:
1, the resistance partial pressure type. Vehicle-mounted mobile charger inside there will be a stout resistance. This way, the output voltage is not stable, and heat resistance itself. In addition to the cheap, no any other great advantages. Output current can be large. The consequences of no short circuit protection, short circuit is a fire or burn out circuit inside the car.
2, voltage regulator, is a larger voltage regulator tube. Can the output current of 1 a. Short circuit more dangerous, the 1 a current is not a joke. Because it can load capability is strong, the slightly higher than 5 v voltage can achieve faster charging.
On me to find a car charger, I standard has friends recommend me the horsepower strong car charger, does this brand in the industry is very famous, but I'm the wto is not deep, don't know too much. But it is worth mentioning that the charger is not only the appearance is very good, very tiny delicate, convenient to carry, also won't hinder to my drive. Shell is ABS, and ROHS certification, this let me very satisfied. Also in the confusion, looking for a long-term use of USB car charger, seek horsepower
