Car charger products are all over the market and network. No matter whether the car friends buy them in the store or online, the types are uneven. We know that the price of car charger is not very expensive, but if the car charger is bought against the counterfeit products, it can burn the car fuse and digital products. It may even endanger personal safety. So how can we improve the skill of selecting high quality car charger?
1. First of all, know the output voltage of your car’s cigarette lighter
The car output voltage is 12V, the truck is 24V, the general-purpose car charger (12V) is mostly suitable for cars, if it is other models, it needs to choose the corresponding voltage standard. There are many car chargers that can meet the 12v-24v standard, that is, all models are applicable.
2. To understand the auto protection function of car charger
Whether the on-board charger has over-voltage, over-current, overheating, short circuit protection and other functions, and the shell is preferably made of ABS flame-retardant and environmental protection materials, which can prevent external combustion as well as make it beautiful, with no hand print left when touching.
3. Pay attention to the voltage and current
When purchasing car charger, pay attention to the voltage and current of supporting equipment, for example, iPhone is 5V / 1a, tablet and mobile power supply are mostly 5V / 2A. If the dual USB interface car charger charges the mobile phone and tablet computer at the same time, the total current of the car charger should be at least 3A or above, otherwise the charging speed will not only drop significantly, but also overheat or even charge the device.
4. Understand the total current of the charger purchased
Generally, regular products will indicate on the charger how much a the output current is. If the purchased charger charges the mobile phone + tablet computer slowly and generates a lot of heat, it means that the current is not up to standard.