What to do if once a faithful assistant - a laptop - stopped giving signs of life? First check the power supply: most likely the reason for it. Even the most reliable devices fail, and the causes of failure can be very different. About this and talk further. Not sure how the adapter is diagnosed? We will teach you! Experts of the company Batterion told how to determine the fault of the charger in a few minutes.
Is the laptop charger really broken: exclude other causes
Before you “sin” on the adapter, you need to exclude other reasons. Run a few simple actions:
- check the condition of the outlet from which you charge the laptop. Connect any electrical appliance to it: a smartphone, an iron or a hairdryer. At the same time, you can plug your laptop into another outlet that works exactly. These manipulations "will kill two birds at once": they will show whether there is light in the house and determine the state of the sockets.
- if everything is fine with the wiring, we are looking for a problem in the laptop. Disconnect the laptop from the network, remove the battery. After that, put the computer on charging and turn it on. The device is loaded, the indicator on the case of the charger and on the desktop of the laptop shows the work from the network? It's not about the power supply, most likely, the battery "died". Not sure where to get a new one? Here batterion.ru you will find the battery of the desired model.
If the laptop does not charge from the network - it remains to check the power supply of the laptop.
There is a contact: what to look for when inspecting the adapter
Modern laptop chargers consist of three elements:
- cable;
- power Supply;
- wire with connector.
Every detail requires careful inspection. Let's say right away that we will not disassemble anything - it is unsafe, unqualified intervention can break the device completely.
Inspect the plug: it should be intact, the teeth do not stagger, there is no smell of burning plastic or rubber. Check the tightness of the 2-pin or 3-pin connector to the power supply. Often the cable is disconnected from the adapter, but remains in the connector. Inspect the wire for damage, cracks and exposed wires. Found problems - change the cord, replace it cheaper and easier than the charger. Most often the cord fails due to carelessness: they passed the chair with the leg, pulled the laptop with the adapter plugged into the outlet in another room, gnawed a pet.
It remains to check the cord that leads to the laptop. The most frequent breakdowns are a damaged plug or a loose laptop slot. Trouble often occurs with careless handling: roughly pull the plug when you insert or remove from the laptop, carry the computer while charging. As a result, contact with the laptop is bad or absent. Broken connector - carry a laptop in service. The problem connector can be repaired or the power supply unit completely replaced.
Check the tester charger for a laptop
A visual inspection did nothing — the last method remains: diagnose problems with a multimeter. This is a portable device that checks the voltage (resistance, power). We describe the process on the example of the most common brand - adapter Asus.
- Power supply plug into the outlet.
- Connect the voltmeter terminals to the adapter plug. In the Asus charger, the plug is cylindrical, hollow inside. The red wire of the tester should be inserted into the connector, the black one should be attached with the metal end over the plug.
- Set the value 20 on the device. The tester shows the value of 19 V (output voltage of Asus adapters), which means that the power supply is healthy. The voltage does not stabilize at all or is equal to 0 - the charger definitely broke.
- Separately, you can check the cable by attaching the red and black “probes” to different ends of the wire. If the tester filed sound signal - The wires are not damaged. Multimeter "silent" - change the cord.
Informed - armed. Now you know how to quickly and competently check the health of the power supply, without leaving home. Correct all problems on time, and let your adapter always be in working condition!
A laptop is a complicated device, but it can do without a lot. Out of space on the hard drive - save information to a removable disk, keyboard problems - there is a mouse. The battery does not work - you can connect to the network. However, there is one indispensable device, without which the most powerful and modern laptop in a few hours will turn into a stylish, but useless toy.
Already guessed what was going on? That's right, about the charger - the "blood vessel" that feeds the battery - the "heart" of the laptop. In fact, the power supply is a fairly reliable device and the manufacturers expect that they will “live happily ever after and die in one day” with a laptop.
But the harsh reality makes its own adjustments. Sudden power surges in the network, sharp teeth of pets, chair leg, put on the cord - any of these moments can suddenly “cut short the life” of the adapter. What should I do if my laptop suddenly stops charging? There are several options to find out what the problem is. We will try to simply and specifically tell about them further.
Checking the environment
If for some reason the laptop stopped charging or does not turn on, do not rush to lament and carry the laptop into service.
First check the following points:
- is there mains voltage? It often happens that the lights are turned off or the voltage level is not enough to charge the laptop. To do this, simply turn on the light in the room;
- find out if the outlet in which the adapter is inserted is working. Turn it on exactly working device (tablet, hair dryer or mobile phone).
- another option is to turn on the laptop in another, probably working, outlet. For example, where TV is usually on.
If all of the above is OK and the laptop is not charging, proceed to a serious inspection of the power supply.
Charger under suspicion
It is very easy to figure out that the adapter is broken. This requires one "little thing" - another power supply from the same laptop. You connect a working adapter to your laptop. If it turns on and charging goes - 100% problem in the charger.
Everything is elementary, as Sherlock Holmes said, but there is one snag - few in the house have the second same power supply. A spare adapter is usually left at work for safety. Therefore, later on you will learn how to check the status of the charger in other ways.
- Inspection of connectors. Check that the cable that leads from the plug to the “black box” is firmly plugged in. At the same time look at the state of the inlet for the plug in the laptop itself. It should not stagger, have cracks and chips on the body.
- The appearance of the power supply (black box). Look for signs of melting or cracks. A working adapter should have a light on when it is turned on (some models are equipped with such indicators, for example, Asus chargers).
- Cable condition. We are looking for physical damage. This may be a broken or torn cord. Such a problem arises due to our negligence - they put in heavy furniture, transferred the cable with a desk drawer, dragged the included laptop into another room. The “risk zone” is the place where the connector is inserted into the laptop, the cable sheath is most often ground there, and exposed wires appear.
A common cause of cable problems is poor quality insulation and wiring. As a result, they can break and tear even from a small effort. And at low temperatures, poor quality wire just crumbles. This trouble is excluded if you use the original power supply from Apple or the Japanese concern Toshiba.
Damage to the cable or housing has been detected - this adapter can no longer be used. Home repairs are unreliable, and unprofitable in the workshop. Therefore, it is better to immediately pick up a new power supply. Adapters of famous brands, such as Acer, are easy to find in any computer store. If you are the owner of a laptop is not the most popular company, then the problem will help solve the Internet.
Is there voltage: test the power supply
We offer two more ways to find out what is wrong in the charger itself - the very “black box”. You will need a tester (multimeter) or a small car light up to 24 Volts.
Option 1
Option 2
Immediately warn: that such a diagnosis does not lead to sad consequences, it is desirable to at least a little to understand electrical engineering.
This method is suitable when there is no tester, and a light bulb is available. Take a small auto light bulb and two wiring. Connect the wiring to the light bulb and insert them into the plug of the power supply. The light is on, so the adapter is working. But it may be that when connected to a laptop, the voltage drops and it is not enough for normal charging.
In the case when the check has shown that the power supply is working normally - look for the cause of the problems in the laptop itself. Try turning on the laptop without an adapter, only on the battery. When the result is nothing, perhaps a problem in the BIOS. If you are not a computer programmer, it’s better not to go there - bring a laptop to the service.
The best way out is the new adapter.
If the home expertise accurately established that the power supply unit had broken, it would be necessary to replace it with a new one. Do not worry, in any case it will be cheaper than buying a battery or repairing a laptop in a service center. When choosing a new adapter, pay attention to the parameters: they must completely coincide with those indicated on the label of the broken power supply. Manufacturers make original chargers that are not suitable for laptops from other companies.
Need to know:
- type and size of the plug (sometimes rectangular or cylindrical, diameter is measured in;
- input voltage (INPUT, V);
- output voltage (OUTPUT, V);
- output current (OUTPUT, A or mA);
- power unit power (OUTPUT, W) - not indicated on all devices.
With the parameters decided, now you need to decide which power supply you are looking for: “native” from the manufacturer or universal. Each option has its pros and cons.
The main advantage of the proprietary device is that it is ideal for your laptop. Enough to know a series of laptop and you can buy a power supply. The only thing that keeps many from buying original adapters is the price.
For those who want to save money, sellers offer universal power supplies. Their advantage is in interchangeable nozzles that can be selected for a particular laptop model. Such adapters are usually assembled by unknown Chinese companies, and therefore the quality leaves much to be desired. Buying a universal charger, you can not know for sure how the laptop behaves.
Another option is compatible chargers that fit specific series of specific brands. such power supplies for Dell laptops. The site contains the main parameters of the adapters, series, there is a photo. Therefore, you are not buying a “cat in a bag”, but you clearly understand what you are ordering.
Careful attitude to the power supply will help keep it in working condition the entire life of the laptop. If trouble still happened, then now you know what to do and you can determine the cause without a master. The charger has broken - there is nothing to worry about replacing it. Competent diagnosis right choice A new adapter - and your laptop is ready for work again. Use on health!
One of the most common problems that occur with laptops is a problem with charging the device. Notebook power supplies are used extensively in different environments, so there is a high risk that adapters may fail. In this article, you will learn how to identify the cause of power problems with a laptop and how to determine what exactly is broken in the charger.
The laptop does not charge - what's the problem
There are a few simple steps to determine what is wrong with charging a laptop.
- The first thing to do is find out if there is voltage in the network. Next, find out if the outlet to which the laptop is connected is working. To do this, insert into it any other working device (for example, charging a mobile phone). If everything is in order here, there is a problem with the power supply or with the computer itself;
- The next step is to find out if the laptop battery is ok. You must remove the battery and connect the laptop to the network. In the case when the laptop is quietly charged through the power supply - look for a problem in the battery. If charging does not go, then the power supply is faulty, less often the problem may lie in the burnt-down motherboard.
Check the operation of the charger
Consider the most common failure of power supplies:
- Damage to the wire. Most often this is due to careless use of a laptop connected to the network: the wire is pinched by something heavy or is very tight, as a result of which the contact is broken. Find out what the matter is in the cable, you can use an ohmmeter. If there is no voltage at all, change the cable.
- The adapter plug is out of order. Rarely, but it happens. This part of the power supply can be easily and inexpensively replaced with a new one. Repair in this case is inappropriate.
- Connector failure Occurs when rough, careless operation of the device or use of a connector that does not correspond to the model of the laptop. As a result, the input slot is loosened, the contact becomes less dense, which leads to damage to the contacts leading to the motherboard. Repair of this type of malfunction is better to entrust experts.
- Breakdown of the battery itself is a serious problem, most often caused by a surge in voltage in the network. May be accompanied by an unpleasant smell of burnt plastic or even a fire in the adapter. If such signs appear, immediately remove the adapter from the power outlet and disconnect it from the laptop.
If you correctly diagnosed a problem with charging a laptop, and the question arose of buying a new charger, go
Laptop users and netbooks occasionally have a problem - the laptop is not charging. It happens for several reasons, each of which requires careful study. Only after that you can begin to solve the problem, because without knowing what the matter is, it is difficult to fix something.
No mains voltage
Perhaps the simplest reason why a laptop does not charge is the lack of current in the outlet. You can check this in the most ordinary way - turn on another device. For example, a mobile phone to charge. If nothing happened, then there is no voltage in the network. Why can this be? There are lots of options, all are individual. For example, the old wiring and power tool included in the neighbors. Or a power surge due to large-scale work with the electrical network in the house or area. 
Power supply and its faults
It so happens that a computer that is connected to a working outlet, still does not receive a charge on the battery. Most of the problems in this case falls on the power supply. First of all, inspect it. If the indicator light is off, and the laptop is not charging, then it is possible that the wire is broken. This happens most often due to improper twisting and folding of the power supply and its elements. To reliably verify that the broken wire is to blame, simply twist the plug in the charging slot. If the light on the unit lights up in a certain position of the cord, and then goes out, then it is still killed. You cannot fix it yourself; a new charger is required. 
If the light on the power supply is on, and the laptop is not charging, then the problem is in the power supply. It is possible that the wire coming from the power box is not working, the socket is loosened or the device itself has become unusable. This happens most often due to the fact that the computer is always on the network. Or the wire is simply not removed from the outlet. In this case, it is also recommended to purchase a new charger of a suitable model or a universal charger.
Errors in the system and settings
Sometimes it happens that the laptop stopped charging due to a failure in the settings. Outwardly it is impossible to notice. Unless the battery icon on the control panel disappeared, you don’t see if the charge is on, how many percent are left and other nuances about the power supply. To find out for sure what the reason is - in the BIOS settings or in the drivers, you need to install any program to your taste, which is up to date. If after updating all the utilities, the charge did not appear, then, most likely, the problem is in the BIOS. What to do in this case? Direct way to go to the master. Self bIOS setup in inept hands can lead to the reset of all settings at all and the slow "death" of the laptop. In agony and torment. There are viruses that attack just the same BIOS, but because of their “work”, the laptop usually stops working altogether.
What to do, the laptop does not charge, there is not enough knowledge to cope on its own Go to the master! Only an expert will tell you what happened to your computer and will be able to fix it. Self repair does not always give a positive result, and in some cases, on the contrary, finally finishes the device.
