Laptop slows down when plugged in?

After unplugging the power supply, there is battery power, and the computer has a high-performance working state to an energy-saving state, at this time, the computer is mainly based on battery life, and no longer blindly pursues high-performance working state, so all the performance has been reduced to reduce energy consumption. This is called slowing down.

It's a strange situation, hehe.

It can be judged in two ways:

1. Substitution method.

Replace the power adapter, if the charging speed returns to normal, it is considered to be an aging or damaged battery.

2. Detection method.

Use the DC voltage and current of the multimeter to measure whether the output voltage of the adapter is normal and whether the output current is too small. If the adapter output is normal, the battery is considered damaged.

Take a look at the power plan, sometimes plugged in the power plan is balanced by default, the performance of the computer is not the highest, you can change it to high performance yourself, that will improve the performance a little.

I don't know if it's signal interference.

Notebooks are different from displays, and the TV working voltage is 220V by default, but there is also a suitable working voltage range.

The power adapter used by the laptop is AC to DC, and the failure of the power adapter will cause the output voltage to be insufficient or the output current step is sufficient. The voltage is not large enough, which will cause a lot of hardware to not be able to reach the best working state or even not work normally, the output current is related to the power output of the power adapter, for example, your power adapter is 90W output, but because of the fault caused by the actual output is only 60W or even lower, then when your laptop hardware is under high load, the adapter is not enough output at all.

However, the slowdown you are talking about may be due to the fact that the output voltage is not enough to cause the hardware to not work properly. I suggest that you go to an outside repair shop and ask the other party to test the output voltage of the power supply, and if you have your own universal meter, you can also test it.

No, just like an unstable voltage will affect a TV show?

Low temperatures can affect battery activity, resulting in slow charging. If the ambient temperature is normal (0 to 45) and the charging is slow, it is recommended that you try the following:

1. Use the original charger to charge, and check whether it takes a long time to be fully charged when the machine is turned off and charged;

2. If it only appears when charging is turned on, it is recommended to close all background programs before charging (drop-down menu, click one-click to clean);

3. Replace the power socket and try to charge;

4. After backing up important data (contacts, multiple files, etc.), and then restore factory settings (Settings - System "More" - Factory Reset, please do not check "Clear completely").

If the problem still exists, please bring the purchase invoice, warranty card and machine to the customer service center for testing, and the professional engineer will solve it for you.