Possible factors why laptop power adapter is not universal

Do you know the possibility that laptop power adapters are not universal? Nowadays, almost everyone has a smart device, and there are more and more power adapters matching it in people’s homes. Take laptops as an example. Sometimes the laptop 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. However, in fact, power adapters of the same type are not necessarily universal. This article will discuss three common reasons why laptop power adapters are not universal. Summarize.

These three reasons lead to the incompatibility of laptop power adapters

Different interfaces

Most laptop power adapter brands have different interfaces, which means that other brands of power adapters cannot be plugged into your laptop to provide power. Different interfaces are relatively safe, because at least you will not plug in a power adapter with inconsistent current or voltage to power the laptop, causing damage to the computer hardware.

Different voltage

Different brands of laptop power adapters have different voltages. For example, generally IBM is 16V, Dell is 20V, HP is 18.5V, Sony is 19.5V, etc. It can be seen that even if the power adapter interfaces are the same, laptop power adapters of different brands cannot be used for power supply.

Different current

Different brands of laptop power adapters have different currents. For example, generally IBM is 4.5A, Dell is 3.34A, HP is 2.7A, Sony is 4.1A, etc. In fact, the voltage and current of laptop power adapters of the same brand are not the same. Therefore, even if you use a power adapter between laptops of the same brand, you must confirm the voltage and current specifications.

Among them, the interface is the most important. If the excuse is wrong, various problems will definitely occur. The second is the voltage. As long as the voltage is similar to within 5%, it should be universal. In addition, there is the current. Large currents can be used on machines with small currents, but the time should not be too long. Finally, there is the issue of interface compatibility. Interchangeability is definitely not possible.

It can be seen that the main reasons why laptop power adapters are not universal are interface, voltage, and current. I believe that after reading this article, you will be able to have a better understanding of the issue of notebook power adapters not being universal. I hope this article can help everyone solve practical problems encountered in life. The above are the possible factors why the power adapter of laptop computers is not universal. I hope it can help you.