How To Test your Laptop Computer Charger Power Cord Adapter Cable 

Thanks !! Glad this video was helpful :):)

Thanks !! Glad this video was helpful :):)

Your welcome !! Happy to help :)

Happy to help :) Always here if needed !!

Happy to help :) Always here if needed !!

Well tell us please!

Entirely different animal lol no. If ur getting voltage, and the load isn't doing it's thing....replace it.

Happy to help :) Always here if needed !!

Great to hear !! Always here to help :):) Feel free to follow my other channel that I'm starting that will offer computer operation tips and general tech tips !! www.youtube.com/@JamTechTips

Your welcome !! Happy to help :)

Happy to help :) Always here if needed !!

Thanks !! Glad this video was helpful :):)

Happy to help :) Always here if needed !!

Happy to help :) Always here if needed !!

Great to hear !! Always here to help :):)

Happy to help :) Always here if needed !! Your English is fine :)

Thanks !! Glad this video was helpful :):)

Sorry but this comment isnt attached to any other comments. It sounds like there is previous conversations here but I cant reference any other comments. What is the issue? Or can you reply to my comment on the conversation thread? Thx

Happy to help :) Always here if needed !!

lol

Ummzzyy 🤣🤣

@@YoSocial lol

OmegaWolf uhm 😂😂 no

What are you 12? Mee too. That was freaking hilarious.

Your welcome !! Happy to help :)

Glad your all set :) Always here if needed !!

Amp?

Indeed.... I've been searching everywhere to find out how to test a plug like this. 😊

Great to hear !! Always here to help :):)

@@PC_Monkey could there be another issue with the adapter if the voltage shows normals?

@@Dnasty1 Yes, its possible the adapter could still have issues, but the Volt is good general gauge if its working well

Glad the video was a bit helpful :) What problem are you looking to troubleshoot?

@@PC_Monkey A Samsung Chromebook worked faithfully until it suddenly did not. I tried to take a step by step approach. Absolutely nothing shows up when I try to turn the Chromebook on. Pressing refresh and on does nothing. The charger light does not function. Thinking that it might be the power cord, I was, quite luckily, within the return period. A new cord has arrived but there is no change in result. I am at a loss. Perhaps the Chromebook just died. However, I do not give up easily. I have had Chrome OS go kerfluey and have brought them back to life. But this does nothing. Of course I am out of warranty. I do not see little screws on the back of the clamshell, so I cannot investigate. Here is the product info: Brand SAMSUNG Series Chromebook 4+ Screen Size 15.6 Inches Color Silver Hard Disk Size 32 GB CPU Model Celeron N3450 Ram Memory Installed Size 4 GB Operating System Chrome OS Card Description Integrated Graphics Coprocessor Intel Celeron Processor N4000

@@marykeane728 1. Were you able to test the charger cord as seen here to see if its putting out a correct charge or not? You mentioned that the light no longer came on for the charger. 2. For a computer that does not turn on, try this video first; ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-P3I7dDpkJps.html. Let me know how that goes :)

@@PC_Monkey I do not have a testing apparatus like the one that you use. As I just swapped out the first cord that I thought had failed for a new one that also failed, I am inclined to think that it is not the cord. I put this comment in the wrong feed. I watched a video about removing static from the computer by removing the back and performing a few tests. That may be the one that you have cited. I cannot see any way to get to the inside of the Chromebook I am trying to bring back to life. Nothing works!

@@marykeane728 For a computer that does not turn on, try this video first; ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-P3I7dDpkJps.html. Let me know how that goes :) For help accessing an internal battery, refer to this video; ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-tUCVN2GLYuA.html If you know your computer's model number, I can help you get inside your specific computer :)

same voltage output

Thx!

It will work fine if the cables are reversed on the multimeter

Multimeter i guess has that kind of protection

​@user-ti5fd3gs8z not protection, it just reads the voltage normally which is now negative since it's reversed. In this case you can just ignore the negative sign.

Thanks !! Glad this video was helpful :):)

Your welcome !! Happy to help :)

That is Volts DC (The horizontal lines mean DC, the wavy line means AC). It is NOT millivolts. On some multimeters you need to set the voltage range you are looking at. You want to set it so that the voltage you are looking for is in that range, likely 10-20V or something similar.

I would replace it rather than try to fix it. With power to the computer, your always better off safe than sorry. Best way to not let cords end up like that is to have little to no stress on it.

Shouldnt be too much of an issue. All the steps for a computer that wont start are updated into one video here; ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-P3I7dDpkJps.html. Let me know how that goes :)

Glad your all set :) Always here if needed !!

Yes :) Let me know if this helps: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-0JfVlHGscjs.html

The Amp of the charger does not need to be exact although it should be at least what the computer is calling for.

Your welcome !! Happy to help :)

Great to hear !! Always here to help :):)

It usually needs a load so it can be somewhat dangerous to measure that correctly. Which is why you dont see a lot of videos showing how to do that. Sry :(

1. For a computer that does not turn on, try this video first; ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-kOBY4k2Mn_k.html. Let me know how that goes :) 2. Also, did anything happen before this issue appeared? Liquid spill, overheating, Windows update, etc?

DCV stands for DC voltage. It is the same thing. The main thing to distinguish is that you are measuring voltage (V) not current (A). This often involves both a dial setting (as was shown in the video) and proper placement of the probes (if you look in the video you'll see that the black probe is in COM - common or on some multimeters it will be GND for ground; the red probe goes into V NOT A).

Try to check the charger. do have a multi-meter?

@@nkyizs4904 I dont have a multi-meter, mine worked fine and one day it just didn't turn on and when I hold the power button for a minute, the keyboard will flash for a second in white, and when I plug in the charger it doesn't show the charging light thing do you know how to fix this issue

In order to test that the correct power is coming from it, it should be on.

@@PC_Monkeythank you for clearing it up for me

Yes, that could affect the computer in that way. The solution there would be to replace the charger. Let me know if you would like assistance in locating one

@@PC_Monkey I have a replacement coming today. I'll see if the problem is resolved tonight.

@@Kizen. Good luck !! Let me know how it goes :)

I would not use an adapter with more Volt that needed on any electronic device personally

Thank you@@PC_Monkey

I would not. Higher power intake could definitely damage components. Great job testing that and identifying that issue. I would def replace it

To perform a BIOS reset, yes, you would have to remove the CMOS Battery. Are you saying your CMOS Battery is non-removable or the main computer battery is non-removable?

@@PC_Monkey @Balraj Kene A couple years ago, I worked on a cheap Acer laptop and it too had a non removable cmos battery that was soldered in .

@@jlr1487 Yes, many computers use a CMOS battery that is soldered on. If you wanted to remove it for any reason, you would have to de-solder it.

When you say, 'the big box', I assume your referring to the power adapter? If thats getting very hot then no, its not supposed to do that. I would replace it asap

Charger should be ok to run the computer. Why are you testing the charger? Computer running well?

@@PC_Monkey thank you for your reply. I brought dell inspiron 1545 the seller told me he had brought a new battery and charger but I'm getting a error message that charger is plugged in but not charging, so I checked the laptops specifications and the charger volts match but the battery does not, so I'm trying to figure out if the culprit is the battery or the charger. Long message sorry about that.

@@PC_Monkey also i checked out your dell videos i have ran diagnostics it comes up as power supply but the laptops battery is at 4% but the laptop works fine when the power adapter is plugged in. So I'm guessing it may be because the batterys volts are lower than the original battery

@@user-qv7hw6zu4n did you find a solution, im going through something similar

@@cheems3483 I just got a new laptop after trying a new battery and adapter. There are so many possible faults to eliminate. You should try calibrate the battery before replacing the battery or power adapter for sure.

Yes :)

Yes, or you would not be able to read any power :)

@@PC_Monkey thank you sir appreciate. more tutorial to come its informative and educational and its really helps a lot.”,

@@alfredthirdy9716 Happy to help :) Always here if needed !!

Yes, the current charger could be damaged. Are you able to try the steps seen here as well? ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-lbZHTcGvLfA.html

If you have to move the angle of the adapter then I would think that the power jack in the computer is damaged. That may be the cause of your issue. If so, you may need to replace the power jack board if its separate from the motherboard. If not, replace the motherboard. For a computer that does not turn on, try this video first; ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-P3I7dDpkJps.html. Let me know how that goes :)

@@PC_Monkey Thank you. I will try to look into that.

Each charger cord is different. If there is a pin inside, you would put the red probe on that and do not touch the inside 'wall' of the charger pin

@@PC_Monkey Yes, there is a middle pin, but meter stays on 0 on it. After a few tries, It does display adequate voltage on inside wall.

Is the computer working normally other than not charging the battery?

Happy to help :) Always here if needed !!

The wire end near the connector can be worn inside but still show voltage plug in the computer and wiggle if you see the light go off or flicker at the same time you bend the end right near the 90 degree plug end that is your issue you can repair solder but if your really desperate sometimes a bit of cable surgery and an alligator clip or even a paperclip can make the repair if your not worried about a fire but it is low voltage DC. If there is poor connect some laptops will flash the charge lights or just shut off, if you enter safe mode or the bios startup mode F1 F2 etc then you can charge without drivers installed or with duplicated or corrupt drivers that the short might have triggered a reset or duplication of or some other internal protection circuitry etc. So it might only be able to charge in this mode until properly repaired by reseting the bios or getting a new charger battery or both but try a different charger at the computer shop first the battery and charger are pretty cheap. I have even spliced a different charger with the same approximate voltage and it works fine for a fair period if it heats up there is too much load maybe not Enuf watts etc bigger is better if you charge 4 cell phones in your USB etc or any extra loads. If it runs without battery and doesn't short u can leave the battery out as charging the battery is the biggest load usually. So unplug any USB loads and the battery plug in charger but leave computer off or in bios boot mode before the drivers load then use a USB load to verify power stays on like a cell phone that dings when it charges if it dings on you. Have a solid charge connection if it keeps flicking on and off you have a poor connection or very corrupted drivers. Delete all drivers and their duplicates From device manager before rebooting past bios start or safe mode if no flickering then it's software related if flickering still. You have a bad connection somewhere check external. First but could be pin in or internal. If it charges off fine then you can only run until the battery dies as the battery power is a different source location but tees in somewhere inside. But it works half the time lol. The charge onky load is less than when running with charge and USB load total a weak Or low output smaller charge cable might still have Enuf juice to run without battery and without major USB loads you can properly splice in a larger charge cord of simular voltage with more watt output on most laptops if the internals do not accept it can. Still charge the battery when turned off. The battery lights usually will turn Color when charged do not overcharge unless you enjoy a good fire always check. For heat at battery and at charger warm is ok but hot is troubke heat indicates load or excessive load like an internal battery short always test in a safe place. Do not. Leave unattended unless 100 percent safe from fire. Solder it up properly using heat shielding or cold solder techniques with proper fire rated insulation etc. If you. Short circuit the charger it can be destroyed quickly with open circuit wires inside the box usually. Not repairable. Get another and test continuity and polarity before plugging it in. Do not reverse polarity usually the pin is positive and the outside wire and outside pin. Are negative DC remeber AC is converted by the charge coil and any electronics inside the charger cable box. Sime even have an led showing DC power out but the connector end can still have an incomplete circuit to the computer or battery charging system. So the volt test is not always accurate but a good start. Enjoy all and be safe

@@davidpride590 Thankyou for your suggestion!

@@davidpride590 damn bro you typed alot

​@@PC_Monkeymy laptop is not turing on plz plz tell me the solution

For a laptop that wont turn on, start your troubleshooting process here; ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-_MOe71kBPOY.html Let me know how that goes :)

@@PC_Monkey like i have commented above. The laptop is new It is not turning on and the light too is not on. I didn't remove the battery as it is not removable from outside. ( as it may be wrong with the warranty period still valid) But i did unplug all the wires and usb and pressed the power button for 1 min and it didn't work. Is it necessary to remove the battery for discharging the static ?

Yes :)

This video shows how to test a power adapter. Its not showing how to fix any particular problem. Not sure what your referring to.

is it fixed then ? :P

That usually means there is something wrong with the adapter or your software. You can see how to fix that issue here; ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-lbZHTcGvLfA.html

I would test the charger as seen here to confirm its healthy. It also may be your power jack, as it needs to be at a certain angle. The jack could be damaged. If the charger is heating up severely, however, I would guess it needs to be replaced. Do you use your computer with a surge protector? You should.

The only way I have ever done it is by using a multimeter. I just did a quick search on RU-vid for the issue and found only other multimeter videos :( Perhaps get a smaller probe is all I can say :( Or, if you have electrical skills, open the end up and test it. But in that case, it may be worth it to buy another charger instead of dealing with the hassle.

If your charger is putting out too little volts, then your computers performance most likely will suffer. The battery may not charge as fast or as all.

Hi PizzaKat. I know you wrote this comment 10 months ago, but I wonder did you find a solution to your power problem? I am currently facing the same connecting/disconnecting issue when playing intensive games on Steam

1. For a computer that does not turn on, try this video first; ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-kOBY4k2Mn_k.html. Let me know how that goes :) 2. Also, did anything happen before this issue appeared? Liquid spill, overheating, Windows update, etc?

Yes, I would assume that would work fine :)

Yes. 50 would be the correct setting. It will give readings (safely and accurately) up to 50 volts.

No. Without testing the charger, its just a guess.

There are many laptops out there. It depends on what you need it for and where you live as not all computers are sold everywhere. What programs are you planning to use?

Feel free to do that for the customers in your computer shop lol. Ill stick to this for mine :)

I would replace the charger. Thats not within error margin :(

@@PC_Monkey Thanks for the reply. Yeah that's what I figured. Oh and subbed!

Yes, very true. This was one of my earliest videos shot prob around 5-6 years ago, back when I was Pointe Tech. Just havent got around to updating it yet. But its on the list :)

@@PC_Monkey I would love to see an updated video. One that shows volts, amps and wattage. That way we're 100% sure the power supply is functioning properly.

@@enermaxstephens1051 Testing A and W are a bit more complicated than V. You wont find too many ppl on here showing how to test for the A. Im still working out how safely to show it and will post a vid when I do :) Another way to see is to simply replace the charger with one on Ebay, Amazon, or another place that offers free returns.

Yes. Voltage is whats required for the adapter to push current (Amps). It may have Voltage, but that doesn't mean current is there so this video is VERY counter productive.

Yes its safe :)

It would have to be plugged in or it couldnt read a charge :)

Ah. I’m new to multimeter wasn’t sure if they produced their own charge but in hindsight yea that doesn’t really make sense

For a computer that does not turn on, try this video first; ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-P3I7dDpkJps.html. Let me know how that goes :)

It could by your battery is bad. When you say, its not charging your computer. Do you mean the battery is not charging or your computer isnt getting power?

Usually Amps are not a huge deal. As long as the Amps are at least what the computer is calling for. It will pull the Voltage as needed :)

@@PC_Monkey thanks for replying. So I should be good as long as I am only measuring voltage on the voltage input of the meter, even if the AC adapter of the laptop has a higher amp output than the multimeter supports, right? I haven’t really used a multimeter before, and know next to nothing about electricity, so this is all new for me. Thanks for answering my stupid questions.

@@thrivingbranch Yes :) np :)

If the pc turns on with just the battery and no charger, but turns off when you plug in the charger, I would assume something is wrong with the charger. However, I would test it as shown here to be sure.

@@PC_Monkey OK thanks for info