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Why is the laptop power adapter not compatible?

204 views Yuda Electronic (HK) Technology Co.,Limited. 2018-07-14

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Laptop power adapter is not compatible. Have you ever encountered this situation? In some cases, the laptop battery is suddenly not fully powered, and there is no power adapter, and the work has not been completed, which is very urgent. Some people may try to borrow someone else’s laptop power adapter, but everyone should be aware of the fact that different brands of laptop power adapters are not compatible.

So why is the notebook power adapter not compatible?

 

First of all, the interface is different

 

Most laptop adapter brands have different interfaces, which means that other brands of power adapters cannot be plugged into a laptop at all. 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.

Apple MacBook Magsafe Power Adapter

 

Second, the voltage is different

 

Different brands of notebook power adapter voltages are different, 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 cannot be powered by a different brand of notebook power adapter.

 

Third, the brand is different

 

The currents of different brands of notebook power adapters are also different, for example: IBM is generally 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 notebook power adapter are different. Therefore, even if you use a power adapter between laptops of the same brand, you must confirm the voltage and current specifications.

(Related articles: Can phone chargers be compatible?)

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