Power adapter cannot be used for general reasons

In the current hands of a smart device, there are more and more power adapters in the home. In the case of a laptop, sometimes the notebook is damaged or replaced, and the power adapter becomes useless. Some people choose to throw it away, and some people choose to use it with other devices of the same type, but in fact the same kind of power adapter is not necessarily universal.

     
The interface differs from the interface between most notebook power adapter brands, which means that other brands of power adapters cannot be plugged into your laptop for power. The difference in interface is relatively safe, because at least you will not plug the power adapter that does not match the current or voltage to power the laptop, causing damage to the computer hardware. The voltage of different brands of laptop power adapter voltage is not the same, for example: IBM is generally 16V, Dell is 20V, Hp is 18.5V, Sony is 19.5V and so on. It can be seen that even if the power adapter interface is the same, it is not possible to use different brands of notebook power adapters for power supply.

   
Current is different for different brands of laptop power adapters. For example, IBM is 4.5A, Dell is 3.34A, Hp is 2.7A, and Sony is 4.1A. In fact, the voltage and current of the same brand laptop power adapter are not the same. Therefore, even if the power adapter is used between the same brand laptops, the voltage and current specifications should be confirmed. The interface is the most important. If there is a mistake, there will be various problems. The second is the voltage, as long as the voltage is close to 5%, it should be universal. In addition, the current is large, and a large current can be used on a small current machine, but the time should not be too long. Finally, the problem of interface compatibility, interchange is definitely not acceptable. It can be seen that the reasons why the notebook power adapter is not universal are mainly three reasons: interface, voltage, and current. I believe that after reading this article, you can have a better understanding of the problem that the notebook power adapter is not universal.

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