To charge your laptop without using a power adapter, you need to directly interfere with its functioning. There are several recommendations on how to solve problems with turning on the laptop in automatic mode without a battery and charger (via use type C and other methods). Following the recommendations below, your PC will be able to operate without a power source built into it.
Before you try the presented charging options in practice, you need to make sure that the computer is working properly.
Method 1: charge the battery without the gadget itself
The point is to disconnect the battery from the PC and use other tools to replenish the missing energy. In this case, you should still have an adapter from the device on hand. Any other that meets the technical specifications will do.
One of the charging options is through another laptop. This is the simplest and most reliable method. To charge the battery, you just need to install it in the device and connect the mains power. This method has a drawback: the possibility of failure during further battery charging.
Using the Power Adapter
This is a radical method of how to charge a laptop battery without a laptop, which will require special tools:
- The adapter itself has a voltage higher than the battery voltage;
- Multimeter;
- copper wires (several pieces).
Additional parts will also be required: for example, electrical tape or adhesive tape, a soldering iron.
Step-by-step instructions on how to charge a laptop battery without a laptop:
- They take the battery and inspect the contacts (the number of terminals may exceed 7 pieces, this is normal);
- Determine the polarity (if the necessary information is missing, use a multimeter);
- The terminals are connected to the wires, having previously cleaned the ends of the latter; in order to secure them more securely, use adhesive tape.
The preparatory measures are completed and it is then possible to operate using a regular adapter. Attach the wires to the contacts on the input connector. The scheme always works here, according to which the middle segment corresponds to “plus”, and the extreme one to “minus”.
This is the main most common way to charge a laptop battery directly.
Connect the plug from the power supply. Charging has started.
To start
You do everything at your own peril and risk
You try all the methods below at your own peril and risk. Charging without a native adapter can cause the laptop's power controllers to burn out, the motherboard to malfunction, and the high voltage can cause the wires to catch fire or melt.
It’s better not to interfere without basic knowledge
The charging options we have provided require minimal knowledge and experience with electricity. But if you have little experience, it is better to stop and ask knowledgeable people for help.
Do not use a higher power adapter
The risk of breaking your laptop will increase sharply if you connect to a power supply with more power than the “native” adapter. Typically, the voltage should be no more than 19 volts, the current should be no higher than 3 amperes.
Option 2: Direct connection
This option is even more radical and requires experience in handling electrical equipment. You will need several soft copper wires and an adapter with enough power. Its minimum voltage must match the voltage of the standard adapter.
Before charging, inspect the plug socket. As a rule, it is round. Connect pre-prepared wires to the contacts on the input connector. The polarity on all laptop models is the same: along, from the edge “-”. The neutral line often runs along the edge.
For a stronger fixation, the positive pole is wrapped with electrical tape or tape. The negative edge is also secured. The wire should only come into contact with the metal edge trim.
Attention! Using a multimeter, contact intersections are detected.
After connecting the wires, move on to the power supply. The “minus” side intersects with the frame of the power supply output part.
Using an external power supply without a plug:
- The contacts are fastened to each other taking into account the polarity;
- Insulate contact points to avoid short circuits;
- The power supply is being charged;
- Check the functionality of the resulting circuit.
If the power of the selected adapter exceeds that installed in the original one, act carefully so that neither the PC nor the batteries overheat.
After completing all the steps, install the battery in the laptop until it is fully loaded.
What is the main difficulty?
Batteries that provide electricity to a laptop must be charged only with a current of certain characteristics. Deviations, both upward and downward, can cause battery failure, and in the case when charging is carried out through a laptop socket, burnout of expensive electronic components.
The permissible voltage range at which the laptop battery can be charged is indicated on its case. When connecting yourself, you cannot do without using a multimeter, which must be in good condition and show values accurate to tenths.
Despite the fact that any wires can be connected by simple twisting, this should not be done. These areas tend to generate heat, which can cause the insulation to melt and cause a short circuit. Therefore, to carry out the work it is impossible to do without soldering equipment and materials.
In addition to the listed difficulties, an alternative source of electricity must produce a current of a certain value. If the ampere charge is exceeded, the battery and laptop computer may also fail.
Method 3: using USB ports
Regular USB ports open up a lot of possibilities on any laptop. Moreover, the modern, updated version of Use Type C. One of these convenient and useful features is charging the battery without the original device. Before purchasing a cable, you must first find out all the information from the technical data sheet of the laptop with a description of all the ports it has.
So, charging the laptop via USB:
- Buy a power supply.
- Connect a pre-prepared USB cable to the laptop and adapter.
- Charge until fully charged.
While charging via USB, you can use the laptop as usual, without restrictions.
Efficiency of charging a laptop using a Power Bank
Considering the efficiency of charging a laptop from a portable battery, we can say with confidence that this method is very good. It makes it easier to use your laptop without access to electrical power.
Just imagine how pleasant it is to use a laptop at work or while moving to another city without a power supply. Your laptop battery plus the capacity of a portable battery is very convenient. This approach will provide you with about 5-8 hours of operation of the device without connecting to a power source while using a laptop PC.
Method 4: use an external battery
This is a very convenient way with which you can charge both at home and elsewhere. It can be used if the PC charger is broken, as it will not be needed. All that is needed to implement this method is the purchase of a special battery.
The size and power of such a device may vary. Select according to the requirements of the laptop.
It is convenient to purchase a Power Bank because you can use it to charge your laptop and other portable gadgets.
Charging process:
- Fully charge the external battery.
- Connect an adapter to it.
- The same actions are carried out with the port on the PC.
This is another option for charging your laptop via USB.
What laptop can't be powered via USB?
So, the first necessary condition under which you can try to charge a laptop is the presence of a USB-C port. Accordingly, laptops without it are deprived of such an opportunity in principle.
Regulation of power transmission through the connector is carried out by the Power Delivery protocol, which is responsible for the compatibility of the laptop and the connected device in terms of energy. By default, the minimum parameters are used - current up to 2 A at a voltage of only 5 V.
To charge a laptop battery, a higher protocol profile is required, which makes it possible to transmit current up to 3 A at voltages up to 12 V.
Option 5: use an auto-inverter
Often traveling PC owners are faced with the problem of lack of charge. A car convector is well suited to solve this problem. It transforms the main voltage of the car. This way you can charge your laptop without a charger.
Attention! USB adapter required.
The connection process is simple: a PC is connected to the installed inventory on the car via an adapter. It is worth paying attention to the port, because its type affects the charging process.
There is another option for charging a laptop in a car - through the cigarette lighter. This will require purchasing a car adapter. Not every PC model can be charged this way. This is an additional option.
Is it possible or not?
The USB port was designed as a universal connector for connecting any peripheral devices to a computer - keyboard, mouse, printer, scanner, and so on. Large devices in this case were connected to the network separately, and the minimum transmitted current was enough to power the rest.
For example, a current of approximately 0.5 A is transmitted through the USB 2.0 interface. The connectors of the latest standard output up to 0.9 A. But in this case we are talking about supplying power from the computer to the connected device. The possibility of the reverse process appeared only after the development of the USB-C interface, and even then with some restrictions.
Option 6: use an electric generator
How can you charge a laptop without a charger yet? Nowadays they also use devices such as solar panels and other compact energy generators. And this is appropriate, because recharging occurs very quickly. Choosing this method of replenishing the lack of charge has its drawbacks. For example, dependence on the weather. At home, charging this way is practically impossible.
When purchasing in a store, you should definitely check the power and ask if there are any special features for recharging your PC.
An adapter is used to connect the electric generator. As a rule, all the necessary items come with the gadget. After connecting, check for interruptions and other problems in operation.
This is the most modern and environmentally friendly way to charge a laptop without charging via the network.
Conclusion
You can charge your phone from your laptop. But it is recommended to do this only in cases of extreme necessity. At the same time, observe safety precautions. You cannot constantly charge your phone using this method.
All friends. I think that I have closed the topic of whether it is possible to charge a phone from a laptop. I hope I explained everything to you simply and clearly.
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Questions - answers
How to charge a laptop on a plane or train?
On long-distance trains, the device is charged through 220 V sockets. They were designed to charge phones and other weaker devices. Only PCs are allowed to be recharged. We charge on planes by asking the conductor. The outlets are under their control.
Can I charge my laptop via USB?
Only if the batteries of both devices are compatible. It won't work via a USB port because it doesn't have enough power.
How to charge PC via WiFi?
This is impossible.
Is it possible to charge a laptop via USB from a smartphone?
Unfortunately, this is not feasible even with a full-fledged connector. There are some models in limited quantities. For example, Philips Xenium or Xiaocai X6. The reason is simple - there is insufficient energy for the PC.
How to charge your phone through a laptop?
Everything is simple here. You can use the cable that came with your phone and connect one end to your smartphone and the other to your PC.
It is not surprising that the laptop will not charge from the phone, because even the power supply of a desktop computer is not enough for it. He needs from 19 W. And the computer unit has only 12.5.
The laptop does not work without a charger. What's the matter?
There are several reasons:
- Battery failure. The service life may have expired. If the battery drains quickly and takes a long time to charge, then it's time to change the part.
- Problems with the charging cable socket.
- The display is too bright.
- Heavy load on PC. Under heavy load, even a new battery will discharge quickly.
How to save your battery
Several years ago, when purchasing any equipment with a battery, store salespeople advised to fully charge and discharge the device several times in order to “tune” the battery to work correctly. This method has gone online and to this day is an unshakable recommendation from “experts.” The truth is that the logic in these actions was only for nickel-cadmium batteries, which have a memory effect.
That is, having fully charged and discharged the battery, it indicated to the user - here are the lower and upper thresholds. If the buyer did not take these actions, then the battery “got used to” that 30% is the lower threshold (it was at this time that the buyer put the smartphone/laptop on charge), and 93% is the upper threshold (the user got tired of waiting, and the remaining 7% is not critical). Thus, the consumer independently reduced the capacity of his battery by 37%.
Modern laptops, phones and other gadgets use lithium-ion batteries, which do not have any memory effect, which means there are no recommendations on how to properly charge a new laptop battery. The only thing you need to know about how to extend the service life is the operating rules.
- The device containing the battery should not be exposed to strong external heat. That is, keeping a laptop near a battery or in the sun is not the wisest decision. When working in the hot season, you should consider purchasing a cooling pad.
- The situation is similar with low temperatures. It is not recommended to work on a laptop at subzero temperatures, and even if you enter the room from a cold street, you should give the device at least an hour to warm up.
- Do not constantly charge the battery. If the user always works near an outlet and the laptop is connected to it, then it is better to remove the battery. However, it must be used periodically, otherwise it will deteriorate.
- Do not leave the battery uncharged for a long period of time.
- The optimal charge level is from 30 to 90% percent. These parameters are not critical, you can put the device on charge or remove it from it earlier, that is, in the range of 30-90%, but you should not cross these boundaries. During operation, there is no difficulty in looking at the battery level and at the right time disconnecting the device from the network and reconnecting it.
- It is recommended to calibrate the battery a couple of times a year.
- When powered autonomously, you should refrain from using resource-intensive programs. Obviously, you should not load the device as much as possible when it is running on battery power - you can set the brightness to medium, and choose an economical or balanced power supply.
- If a user works on a gadget while traveling and does not use wireless networks, then it is worth activating airplane mode. In this case, the battery will last longer, since it will not constantly try to find available Wi-Fi.
The simple recommendations proposed above allow you to maintain the performance of the battery and ensure that it lasts longer than the 2 years stated as the service life of any modern batteries.
