A laptop is a mobile device, that is, an analogue of a desktop computer, which is designed for portable use. But like many portable devices, it requires periodic charging. If the laptop does not work on mains power or does not retain battery power, then this is a serious problem.
If the laptop works from the network, but does not charge, then it is worth doing some manipulations. However, they cannot be considered unambiguously safe, so you will have to do this at your own peril and risk.
First, you should remove the battery from the laptop and connect the power cable to it. Then you should turn on the device and wait for the operating system to start. After this, you can insert the battery into the laptop.
Laptop power supply
The laptop does not work from the network for another reason - a malfunction of the power supply, which can often fail. During power surges, its performance leaves much to be desired. The fact is that the task of the transistor, which is located inside the power supply, is to convert alternating 220 volts into constant 12 volts. However, this is difficult to cope with if the voltage is constantly fluctuating. In connection with such a situation, the power supply may simply burn out.
The solution to this problem is very simple - replacing the inoperative power supply with a similar new one. You just need to know the laptop model and its connector when purchasing, then you can avoid returns.
Another reason why the laptop does not work from the network is the power supply cord that has become unusable.
The first case affects the connection of the power supply with the cord entering the outlet, since it is subject to constant kinks and friction. In the event that a part connecting to the power supply is damaged, you can repair it yourself. To do this you will need wire cutters and electrical tape. The damaged area must be cut and the wires insulated. Then the surviving parts are connected to each other.
Of course, this method will permanently ruin the appearance of the device, but it will give it time to work a little more until it is completely replaced with a new one.
In the second case, the power cable breaks down in the place where the plug is connected to the laptop's charging connector. This happens due to careless transportation or constant movement of the cable in that place.
The solution is completely similar to the first case, but it is better to replace the cable with a new one.
Power supply cable connector
If the laptop does not work from the mains, then the reason may be hidden in the plug itself for the device’s charging cable.
Over a period of time, when the laptop is subjected to constant transportation without proper care, the power plug may also become damaged. It’s easy to check the charging socket for serviceability - if the laptop displays the charge level only when the plug in the socket is in a certain position, then the problem is definitely in the connector.
If you have enough experience in assembling/disassembling laptops, you can try replacing the connector yourself. In another case, in order not to damage the motherboard, it is worth taking the equipment to a repair service.
Problems with the motherboard
If all of the above options did not help determine why the laptop does not work from the network, then the problem is most likely in the motherboard. True, the average user will not be able to accurately determine the area of the breakdown, since it could be transistors, capacitors, and much more.
The best solution to this case would be to contact a service center, where an experienced specialist will conduct diagnostics and issue a verdict.
There are cases of laptop battery failure, which leads to its complete destruction, so the question arises as to whether it is worth using a laptop without a battery.
Of course, a laptop can be used for a long time if there is no battery, only if several conditions are met:
- Firstly, the power supply used must be branded, that is, the one that came with the laptop.
- Secondly, the supplied voltage should not jump; for this it is better to purchase a special filter.
- Thirdly, to be completely sure that the voltage will not change dramatically, it is necessary to install uninterruptible equipment that ensures a stable voltage supply.
These methods will undoubtedly help you continue to use your laptop, but then it will lose its mobile superiority over a desktop computer. Therefore, it is easy to immediately understand whether a laptop can work from the mains without a battery.
To avoid all previous situations, you should listen to the advice of experts. And first, it should be noted that a constant connection to the network leads to accelerated breakdown of the laptop battery, so it is recommended to turn it off as soon as the battery is fully charged.
Since the batteries are lithium-ion, they constantly need to be both discharged and charged, so working off-grid is mandatory.
There is still an opinion that to preserve the life and performance of a battery, you need remove laptop battery when it is running on mains power. It may be useless to argue with such users, because I was the same until I found the necessary information on this issue. Previously, I simply took out the battery and put it on a shelf somewhere. What for?
As it turned out, the battery does not “deteriorate” at all when charging the laptop from the mains. All batteries have a special controller that responds to charge and discharge levels. It will not allow the battery to charge or discharge to a critical state, that is, to 1% or 100%. The only nuance that can be taken into account is that the controller is damaged, which is why recharging the battery can really be dangerous.
With a full, charged battery, you can safely use the laptop from the mains. Therefore, it is quite possible not to remove the battery. In addition to batteries, the battery contains a special controller that regulates charge and discharge. Thanks to it the battery lasts longer
Also, in cases of power surges and complete blackouts, the laptop will continue to work, since the battery is in its rightful place. It kind of plays the role of a UPS - an uninterruptible power supply, which is installed in all modern offices to avoid the loss of important data during a power outage.
Laptop battery controller
Laptop battery aging is a natural process
Even if you remove the battery, this will not save them from aging. All things get old. Batteries included. According to some estimates, the battery loses 20% of its capacity after 2 years of service, even if it lies on the “shelf”.
My almost 5-year-old laptop works every day from the network and nothing has happened to the battery. All that the battery has undergone is severe aging over all this time. If previously the device worked for 6 hours without recharging, now it’s a maximum of an hour, even when the energy saving mode is turned on.
There are now software that can . In case of unsatisfactory results, it is better to replace the battery.
So far, no batteries have been invented that could provide high-level autonomy for devices. Nowadays, mainly lithium-ion (Li-ion) and lithium-polymer (Li-Polymer) batteries are built into portable devices. (Read: Operation of lithium-ion laptop batteries).
For example, the first type of battery (lithium-ion) is now very popular and is used not only in mobile equipment, but also in household appliances. They slowly lose charge and do not have the so-called memory effect. If they are not used correctly, then they should not be expected to last for a long time.
But lithium-polymer batteries are a more advanced technology, which is available in smartphones and other digital equipment. Has a larger capacity than lithium-ion and memory effect. Their advantages are also low price and higher energy density, low discharge, lighter weight and environmental friendliness.
How to Increase Laptop Battery Life
We have dealt with the important points of this article. That is, it will not be possible to recharge modern batteries. There are points that should be taken into account during operation throughout the entire service life.
- Monitor the temperature— temperature changes have a very negative effect on the condition of the battery. Have there been times when your smartphone turned off during sudden cooling in the cold? I've had them. It's the same with laptops. If it so happens that you brought the device after a frost, do not turn it on immediately, but let it warm up a little. In the summer, do not place your laptop (this applies to any device with a battery) in direct sunlight.
- Be careful in handling— by these points I mean moments when the device can accidentally fall out and hit. Such loads are not intended for batteries.
- Don't drain your battery— there have been cases when, after a very deep discharge, the battery was no longer charged. In some cases, this problem can be solved using a special power supply. Therefore, it is worth charging even those batteries that are lying on the shelf. In this case, it is advisable to keep the charge in the range from 40 to 60%.
If you have a desire to remove the battery from your laptop for some reason, then this is very easy to do.
There are usually two switches on the back of the laptop. One secures the battery, preventing it from falling out, and the other switch allows you to remove it. You can switch two sliders at the same time and thereby remove the battery.
Why remove the battery:
- When disassembling a laptop, cleaning it and replacing equipment.
- When replacing the battery.
- To reset the device.
Bottom line
So, I am not imposing my opinion on anyone, you can store your battery wherever you want. But a couple of nuances that we have studied are that the controller will not allow the battery to be critically charged or discharged. The battery also tends to age and lose capacity. And in the event of a power failure, it helps to continue working. I think the arguments are convincing and users will not remove the battery from the laptop. If only for cleaning and replacing equipment.
The question of safety does not arise only for those who use it on the road. Those who use it stationary are, for the most part, confident that the laptop is obliged to fulfill its warranty years no cooling down time. It is used as a server, a music center, torrents are constantly running on it, or social networks are open around the clock. And although the laptop bears the responsibilities of a PC, often its place is not on the table, but on the lap, pillows, seat of a chair, armchair, or in the bed. Leaving home, owner won't turn off laptop, but just covers the lid. And although there may not be a single active window while you are away, this is due to the time saved on loading the laptop. And so he came and simply lifted the lid. Comfortable!What do experts know?
Let's start with the fact that a laptop is not a refrigerator or even a TV. It has as much stuffing as can fit into an almost complete version of a desktop computer. Only it is located much more densely, and accordingly it heats up more intensely. Of course, there is a fan to cool the laptop parts. But in some models (most Asus) warm air is blown out under the bottom panel. Of course, it is not recommended to place such a laptop on a surface without air flow - after several hours of continuous operation, something will begin to melt (either laptop parts or pieces of furniture). If heat is blown out from the side (HP and Sony, for example), then it is dangerous to cover the lid of a running laptop, because cold air intake happens just from the keyboard. By the way, this not only makes it difficult to access air, but also overheats the screen, which can result in a wavy image.But many users do not pay attention to laptop overheating. "Is that a problem? After all, technology is now getting smarter every day. If overheating occurs, the laptop will automatically turn off!” And at the same time it will lose all unsaved data, and there will be problems when rebooting. And if the laptop was on the seat of a leatherette chair, then the upholstery would also melt. Goodbye chair! Let's return to electronics: not turning off the laptop is sometimes positioned as a way to cause less harm to the device (that is, any turning on and off is harmful to the laptop). An authorized shutdown will be of greater benefit than an automatic shutdown (due to overheating).
Many users are confused by the fact that some studies prove the possibility constant use of a laptop up to 8-10 years. But first we need to clarify the fact that it was not “consumer goods”, usually Chinese, products that were studied. In addition, the manufacturers of hard drives themselves (which burn first) give a multi-year guarantee only if the operating rules are followed. And this is no more than 8 hours of continuous operation. Using a flash drive instead of a hard drive in continuously working laptop is no longer a possibility, but a guarantee of failure.
Another "dark side of the force" always-on laptop- battery. When fully charged, it will be safer not in a laptop that is constantly plugged in, but taken out of it (you can even put it in the refrigerator). Otherwise, the battery capacity will quickly decrease. And just at the time when you need to use the laptop without access to the power supply (on the road, for example), it turns out that the battery supports operation for a maximum of 20 minutes. By the way, trouble does not come alone - lithium-ion batteries, which are so popular today, in addition to losing their service life when constantly connected to the network, also suffer from overheating (they are not recommended to be left even in cars with non-functioning air conditioning).
Finally, we will save a topic that is relevant for users of most provincial cities, as well as rural users - voltage in the electrical network. Power surges will not improve the performance of your laptop. In stationary computers, they are protected from voltage surges using uninterruptible power supplies. In a laptop, this function is performed by the battery, but it was already mentioned above that the battery loses its potential. It turns out to be a double-edged sword.
So what to do?
If you want extend the life of your laptop's motherboard and hard drive, then you first need to develop a few useful habits. Fall asleep without music or movies. If there is no more effective sleeping pill, then use a player or TV. Train yourself not to take your laptop to bed, on the sofa, or leave it on the seat of a chair. If you really want to sit in a chair and hold the laptop on your lap, then place something flat under it. There's no need to justify long-term laptop operation saving time on switching on - this process takes only a couple of minutes. To obtain warranty service for parts, follow the operating rules: after continuous 8-hour operation there must be a 2-hour cooling period.But what should you do if you actually need to use the laptop for more than eight hours at a time (for downloading, for example)? Then its place must be clearly on the table, and a stand must be placed under it. If you can’t buy a special stand, you can use plastic bottle caps as laptop stands. If you are afraid that such an improvised stand is not entirely stable, then you can use two slats as runners. Train yourself do not cover the keyboard while the laptop is running.
The issue with the battery is solved in a similar way: the laptop is powered either directly from the network or the battery needs to be reconfigured. Using a special program, the voltage and clock cycles are reduced; for full operation, of course, it will not be enough, but 300 MHz (minimum operating frequency) is enough for downloading. If the laptop is powered directly from the network and there are no voltage drops, then separate storage of the battery would be appropriate. Some experts advise storing them in the refrigerator, but not in the freezer. This advice is especially relevant for lithium-ion batteries. Before placing the battery in the refrigerator, it must be wrapped in a clean, non-synthetic cloth and then placed in a plastic bag. Do not store near liquids!
Holds charge less and less.
To maximize battery life and keep your device running as long as possible throughout the day, follow these 7 tips.
Battery Operation
First, you should know a few useful facts about laptop batteries.
* Battery is a consumable item, i.e. If it doesn't hold a charge well or is broken, you need to buy a new one.
* The warranty on laptop batteries is given for a much shorter period., because it ages and changes its original qualities over time, being influenced by a large number of factors, including the temperature in the place where it is most often used.
* Today, all laptop batteries are lithium-ion (Li-Ion). Their service life is usually measured in charge/discharge cycles. On average, conventional batteries are designed for 300 such cycles. It is worth noting that one cycle is considered to be either a full battery charge or a partial charge.
© amnarj2006 / Getty Images
* Theoretically, the average laptop battery should last about 2 years, sometimes this figure reaches 3. Next, the battery needs to be changed. But in practice, it happens that the battery has to be changed more often.
* Apple laptops have lithium polymer (Li-Pol) batteries, which in theory can last at a good level for up to 5 years, because They are designed for 1000 charge/discharge cycles. But in practice this figure is usually less.
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* Most often, batteries fail earlier than expected due to improper use.
How to increase battery life for a laptop
Here are some useful tips for using your laptop battery:
1. Work on your laptop from the mains (while removing the battery), but do not forget to sometimes work on battery power.
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When you are at home and use a laptop instead of a desktop computer, and you do not take it with you very often, then it is worth it use from mains, in this case you need to remove the battery.
When you need to take your laptop with you, you insert the battery again. But it is worth noting that the battery consists of active chemicals, which means the battery does not need to be kept “idle” for a long time otherwise it will age and its shelf life will be shortened.
As long as the battery does not work, it ages. It should be fully charged and discharged at least once every 5 days.
*You should also know that you should not remove or insert the battery while your laptop is on. It should always be turned off before doing this.
How to properly charge a laptop battery
2. To ensure battery life lasts, do not charge it more than 80 percent and do not let the charge drop below 20 percent.
* When you sit down at your laptop and plug it in with the battery inserted, make sure that the charge indicator did not rise above 80%. When you reach this point, turn off your laptop, remove the battery, and turn your computer back on.
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* When you decide to take your laptop with you, turn it off and insert the battery.
* When the laptop is running on battery power and the charge indicator shows between 10% and 20%, turn off the laptop and do not use it unless there is an outlet nearby.
There is a lot of hassle, but if you want the battery to last longer, then you should listen.
If the battery is completely discharged, the laptop turns off, and you haven’t turned it on for a couple of days, then the battery may lose its ability to charge, and you will have to replace it.
These batteries love to work.
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There are some features associated with MacBook laptops. They should not be left unemployed for a long time. If you do not turn on your laptop for several days, the battery capacity may drop significantly.
But if you turn on the laptop and run on battery power, then everything will soon be restored. Such laptops need to be fully charged and discharged at least 3 times a week. Otherwise, the battery capacity will drop and it will be more difficult to restore the battery.
* Important: It is worth calibrating the battery at least once a month. This process is a kind of battery tuning, and he details described on the company's official website Apple.
3. Place the laptop on a flat, hard surface and do not block the openings for heat escape from it.
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Temperature is the battery's biggest enemy. Both high and low temperatures greatly harm the battery and reduce its performance.
What to do if your laptop gets hot?
You should not keep your laptop turned on on a sofa, blanket or other soft surface because:
* Such a surface impairs heat dissipation from special side gaps and the laptop heats up more, which is bad for the battery.
* There is no free space at the bottom of the laptop. When we place it on the table, the legs of the laptop create a small gap, with the help of which the laptop is cooled. When he is on the sofa or pillow, the computer gets very hot - its bottom can heat up to 50 degrees, and there’s even more inside.
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There is very little space inside the laptop; all the parts are located almost like a sprat in a tin can. Because of this everything inside heats up quickly, especially the processor and video card.
Despite the fact that each laptop has its own cooling system, although it removes heat, it capable of warming up the entire laptop body.
All this has a bad effect on the battery, which already gets hot, and if gaming laptop, i.e. has more efficient parts, its temperature both inside and outside is even higher.
4. Do not keep the laptop in the sun or in direct sunlight.
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This will make the laptop heat up even more, which is harmful to its battery.
Inside its components heat up, and outside the Sun heats up, which leads to heating of one case up to temperatures of 60 degrees and above. This is not only harmful to the battery, but also to the internal components (video card, processor, hard drive).
You can use special cooling pad for laptop. But if it is a stand that connects to a USB port, then it is better not to use one, as it will simply take the necessary energy from the laptop battery.
5. In winter, try to keep your laptop outdoors less (even if you use a case or bag).
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The battery does not like extreme cold. If the temperature outside is sub-zero, then only about 15 minutes will be enough for the laptop battery to cool down to air temperature.
Cold is harmful to all laptop parts, starting with the screen and ending with the hard drive, which can fail due to severe frost, and you will no longer be able to get the necessary files from it without a specialist.
The battery quickly loses its capacity at low temperatures, and it may also stop accepting a charge altogether.
In the cold It's better not to keep your laptop in the trunk of your car., the temperature there is much lower than in the cabin.
6. It is better to turn off the laptop and not use Stand By mode.
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Many people prefer to simply close the laptop without turning it off, i.e. laptop goes into waiting mode. But this should only be done if you are not going to sit at your laptop for about two hours. You shouldn't do this at night.
What is standby mode:
It is worth noting that Standby mode was created to stop the laptop from working for a couple of hours, but it cannot be used as an alternative to turning off.
When standby mode is enabled, the laptop the screen, hard drive and adapters turn off, but the RAM and processor remain working, and also so that you can exit this mode, the keyboard and touchpad.
Briefly: The laptop still works in standby mode, all its components receive power, including the battery. In addition, the computer generates heat.
*If you still don't really want to wait for the computer to boot from scratch, use hibernate instead of standby mode.
What is sleep mode:
In this mode the laptop writes all data from RAM to the hard disk, followed by its complete shutdown.
When you turn on the laptop, the RAM data is transferred back - from the hard drive to the RAM and your computer boots quickly and accurately just like you left it, with all windows and programs open.
*When using sleep mode It is important to restart your laptop at least once every 3 days. Thus, his system will not be filled with a large amount of unnecessary data, and the computer will work without failures or slowdowns.
7. Don't forget to unplug your laptop when it's not working.
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In theory, when the battery is fully charged, the charging mode should turn off, but in reality this does not happen, and battery continues to charge, but already in the “compensatory charge mode”.
Continuing to charge beyond 100% will quickly wear out the battery. To avoid this, unplug your laptop from the power supply.
Where to buy a laptop battery
© Tomasz Majchrowicz/Getty Images
If it's time to replace the battery in your laptop, then It's better to contact the store where you bought the laptop.
You can also find out where you can buy a battery for your laptop on the official website of the manufacturer. All laptop manufacturers post information about where you can buy a suitable battery.
Users primarily value laptops for their mobility. This equipment becomes mobile not only due to its low weight, but also due to the presence of capacious batteries.
But, despite the ability to work autonomously for several hours, many users connect their laptop to the network while indoors. In this case, it seems that the battery is not required.
A logical question arises: if the laptop is running on mains power, is it necessary to remove the battery?
Disputes about this have been going on for a long time. Some users recommend doing this, some absolutely do not.
Which opinion to believe? What arguments can be made in favor of such actions?
Arguments for disconnection
The main argument that is given in favor of removing the battery from the device is that this will extend the life of the battery. The fact is that if the battery is in constant charging mode, its service life is significantly reduced.
Arguments against shutdown
How can this opinion be easily refuted? Indeed, a battery that is constantly in recharging mode will use up its resources faster. However, it goes into recharging mode only when the charge level reaches 90-95%.
If the laptop is running on mains power, the device is not at all threatened by a drop in charge to this level.
There are other compelling arguments that can be made against removing the battery from a laptop:
Backup power. The fact is that the battery is a backup power source. If the device is disconnected from the power supply for any reason (for example, due to a power surge), nothing will happen to the unsaved data. If the battery is removed, you can simply lose the most important data, which is not always possible to recover;
Mobility. If the battery is in place, the laptop will be a mobile device. It can be disconnected from the power supply at any time and used outdoors. If the battery is disconnected, it will need to be inserted back into the device, and then charged at least a little.
If the battery is disconnected from the laptop for a long time, it is likely that it is very discharged.
When can the battery be disconnected?
Users who work with a laptop exclusively in stationary mode can disconnect its battery. However, this should only be done if you have a special device that protects against voltage surges in the network.
Another question: what will such a disabling give the user? The fact is that it will have almost no effect on the battery life. If you believe the statistics, in one year of operation it still loses about 10% of its capacity. That is why it is simply pointless to pull it out.
How to extend battery life?
You can extend the battery life in other, much more effective ways:
Monitor the temperature. Overheating negatively affects the performance of the battery. Use modes in which the laptop operates at a low processor frequency and special coolers;
Perform calibration. In order to calibrate the battery flow meter, it must be completely discharged. Then the flow meter will be accurate.
With these simple steps you can significantly extend the life of your laptop battery. There is absolutely no need to remove it from the device when operating from the mains.
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