How to pick the car charger

Now on the market most of the digital products come with standard USB charging cable plug, the principle of car charger is to convert voltage of 12 v car cigarette lighter sockets to 5 v voltages and through the USB charging line recharge electronic products. So, we have time to buy car charger but how to choose?

1, please buy regular brands. Please be sure to buy aftermarket manufacturers have formal protection products, do not buy and use three products, otherwise a quality problem to lodge a complaint, too late.

2, understand the main parameters. In principle, as long as the nominal voltage of the charger to see the charging device to agree on can be charged, but the charger's power is also a very important technical parameters, If the charger with small power for high power devices can cause low power charger in overheating and burn (such as the IPOD charger is absolutely can't give the), Had better choose power for 1 a or 2 a charger.

3, Just choose the right not choose expensive. Although vehicle-mounted inverter can inverter 12 v power into 220 v alternating current (ac), but the cost is high and have an impact on the car when using power equipment. The car charger or converter is to convert 12V DC to 5-20V DC, Low power consumption, high safety factor; the price is much cheaper, Therefore, if the use of electrical appliances in the car is not very special case with car charger or converter to meet the needs of the majority owners.

4, Safety is very important. Circuit design should include overvoltage, Over current, overheating and short circuit protection, more effective protection of your electronic equipment enclosure must also adopt environmentally friendly flame retardant ABS material. Both beautiful and safe.
Anyway, I hope you will seriously remember the above techniques and methods, which can help you buy a desirable product.