There are also many mobile devices, almost all use power adapters. So can the power adapters of these appliances be universal?
Next, the technical staff of mobile phone charger manufacturer Yongletong will explain to you whether the power adapter can be used universally. 1. The main points that power adapters of different specifications cannot be universal are as follows:
The voltage must be the same, otherwise the electrical appliance will be burned or unable to work.
The output current of the power adapter must be greater than the working current of the electrical appliance, otherwise the power adapter will burn out due to "overcurrent".
The positive and negative poles must be the same to avoid accidents.
What kind of power adapter can be used universally? If the voltage is appropriate and the current is not less than the original power adapter, you can replace it. The appropriate voltage means that the voltage of the power adapter can be used as long as it is 4V higher than the voltage of the laptop battery. Otherwise, due to insufficient voltage, it is impossible to open the notebook to charge and maintain the operating voltage required for the circuit.
11.1V battery, power adapter voltage above 15V, 14.8V battery, above 19V.
In short, we should try to use the original charger in our lives. This is mainly for safety. Generally, manufacturers will provide original adapters. If you can't find it, we can choose the power adapter of the same size.
Many people may not know how to choose a power adapter during the process of choosing a power adapter. I talked about how to choose a power adapter before. You can study together. First of all, the important point is that the output voltages of the two power adapters are the same. Secondly, although the nominal output of the latter adapter is about 1.3A larger than the former 3.34A, this current refers to a continuous large output current. The output current of the power supply is not always constant and will automatically adjust with the weight of the load. When the load is heavy, such as charging while using a computer, at this time. The output current of the power adapter will increase significantly, and even exceed the nominal output in a short time (if the battery exceeds 3.34A after charging