Q:In the past when the power adapter has a squeaky sound. Now plug in the power supply adapter will be squeaky. Power on a while to power, and power indicator light does not shine, power adapter silent. Put a while the power adapter connected to the power there will be squeaky. And can make the computer boot. Boot a power supply and no response. I wonder if the power cord is broken or the adapter is broken?

1, you can put the laptop power cord adapter to take out the line, replace and then connect the laptop, if the normal charge, then the power adapter is out of the cable, 2, the adapter out of the outlet line, with a multimeter test adapter power output pile, if there is voltage, the adapter intact, if the output pile without voltage, then the adapter is damaged.

Q:Can the laptop's power adapter be placed in a suitcase when flying?

Notebook power adapter can be placed in the suitcase shipping.

Q:Check a lot on the Internet, but still do not understand how is it? Plug the power supply is not inserted in the power adapter? The The That plug the power adapter with the computer without the battery pull down (to pull down the words, is not to put the battery full and then pull) My computer's battery is 6-cell lithium battery, how to charge the battery good?

Plug the power supply is plug in the power adapter ah, with the power adapter when the battery did not take down, the notebook is now designed to charge the battery directly to stop charging, so do not worry about the battery will be filled with bad, and if the battery is full of still External power supply, then the external power supply is a direct jump to the battery power supply to the computer, so do not worry about the battery, and finally talk about the better way to save the battery is usually on the computer on the computer, about a month with a battery, and then use To less than 10% of the battery power, and then filled with an external power supply, once every month, the longest battery life

Q:My ASUS notebook power adapter is 19V ~ 4.75A can use other computer adapter 19V ~ 3.42A charger

Is possible, but it is best not to use long, you can buy Taobao, not expensive

Q:Power adapter problem

HP comes with the adapter will be a problem, after all, this is an electronic product, not one hundred percent. But the problem of these brands a little less.

Q:My computer is the HP Pavilion dv4-1212tx, power adapter last night has been supporting the ring, nor to the computer power supply, so consider is not bad, want to change a new one. To Jingdong point of view, do not know in the end applicable to what type of power adapter. Which big god can help me solve, thank you, hurry! It is best to give a Jingdong or online shopping address.

Wait for me to help you find, my HP notebook is also the total problem of ah

Q:What does the REV 02 on the laptop's power adapter mean?

AC is not the same difference ~ ~, it is best to buy UPS regulator

Q:When the notebook is not connected to the computer, the indicator light on the adapter is on But a computer on the off, but also to no power Is this the problem with the adapter or the computer?

5, the above check are normal, basically can be a preliminary judgment is the notebook motherboard failure. Recommended repair service station.

Q:Lenovo notebook power adapter 19v can use 20v of it

Yes, the general power adapter output voltage will have an upper and lower limit (no load and load voltage), about up and down about 5%. But not recommended for long-term use. See if the adapter is suitable for the equipment, the following three conditions for reference: 1. The output voltage of the adapter is the same as that required by the device. 2. Is the adapter's output current consistent with the device requirements? (Or a little larger or smaller current is also not.) 3. The size of the joint is appropriate. (If the connector is too loose, will be bad, excessive fever.)

Q:Laptop power charging interface is not appropriate, with a laptop power adapter adapter?

2, the current enough. The output current of the power supply can not be lower than the current of the appliance.