Instructions for removing and replacing the battery in the computer.
The importance of the battery on the motherboard cannot be underestimated. After learning a little about the nuances of its use, you will understand that this is an important element for turning your computer into a full-fledged, workable system.
The battery located on the motherboard stores all the main BIOS settings. Even if the PC is turned off and unplugged, the battery still works. That is why when you turn on the computer, the time and date always remain relevant.
The battery is located on the motherboard, usually at the bottom in the middle. The position may vary between manufacturers, but it is easy to recognize. This is such a shiny white circle with a diameter of 2 cm. The battery case is marked Lithium CR2032-3V.
Most personal computers have a 3V lithium battery. Its main purpose is to maintain the internal clock and save the CMOS settings. Standard motherboard batteries cannot be recharged. By the way, that is why it is wrong to call the battery for the motherboard a battery, because the latter can be charged. The service life varies within 3 - 6 years, the cost - within 30 - 100 rubles.
Modern motherboard manufacturers often do not pay enough attention to the quality of the product, including the battery. Therefore, in inexpensive models, they rarely work for more than three years. Sometimes, even after a year of operation, problems begin to appear, expressed in the lag of time. This is due to the fact that manufacturers who have recently appeared on the market seek to save on the quality of products in order to reduce the price. But companies that have been producing motherboards for 10 years or more often offer high prices, but the quality of motherboards, including batteries, is an order of magnitude higher. This should be taken into account when buying.
Battery symptoms
There are two main manifestations that the battery on the motherboard has used up its resource and it is time to replace it:
- You have begun to notice that time is gradually falling behind. At first this happens imperceptibly, but after a couple of weeks the difference will become noticeable;
- You are having trouble turning on your computer. It turns out to enter the system only when pressing the F1 key. This definitely means that the battery on the motherboard is out of order and needs to be replaced as soon as possible.
But resetting the time and date is not the worst thing that a dead battery can lead to. Since the BIOS settings are saved on it, they are also completely reset. If you carefully made the settings, adjusting the system for yourself, then such an incident will quickly become noticeable.
BIOS settings include many adjustments to optimize system performance. These are overclocking, boot options, expanding the possibilities of charging devices via USB, speeding up PC boot, setting up coolers, a video card, various ports, interfaces, and more.
But even if you did not make any settings, this does not mean that a bad battery will not damage the system in any way. The failure of such an important element on the motherboard is a very unpredictable process, so any troubles can arise with hardware.
Another situation may also arise. For example, your computer is a server. Obviously, its condition must be monitored especially carefully, including the battery on the motherboard. As soon as the first signs of its discharge appear, you need to immediately replace it. Otherwise, the time will fall behind on all devices on the network. Other BIOS settings may also be reset or not work correctly (this applies more to the server PC).
The computer itself may indicate that the battery should be replaced. Then one of the following windows will appear on the screen:
- "CMOS control memory error";
- "Error reading CMOS";
- "CMOS setup error";
- "Wrong date and time."
If you realize that a battery replacement is inevitable, the first step is to rewrite its specification, as it must be exactly the same battery. You can even take it out of the motherboard it's in and show it to the store. This option is preferable, because today there are similar batteries that differ in thickness. Having bought a thin battery (even with exactly the same specification), you can install it in the motherboard, but you will need to press it with something, otherwise the contact will be loose.
Battery replacement
This process is not too complicated, so you can do the replacement yourself.
Sequencing:
- Turn off the PC, pull out the socket (or switch the key on the back of the system unit, which is located behind the power supply at the top);
- Remove the side cover from the system unit;
- Find the battery, press the latch;
- Remember (or write down) its number, exactly the same you will need to buy;
- Insert a new battery with the wide side up.
Then you need to set the time and date, and restore the BIOS settings.
BIOS activation
By the way, usually if the battery replacement is within 5-7 seconds, the settings are not reset. However, it is still better to write down the settings.
To do this, you must enter the BIOS. The process itself is simple, but problems can arise. Typically, you log in by pressing the computer's power button and then pressing one of the keys on the keyboard. Traditionally this is Del, F2 or Esc. But today every motherboard or laptop manufacturer has its own combination. Sometimes you need to press not one, but several keys.
Below are two tables: keyboard shortcuts for logging in from BIOS, PC and laptop manufacturers.
Save these useful tables. They contain the most popular manufacturers and in case of problems with the BIOS, this data can be accessed.
By entering the BIOS, you can easily rewrite all the necessary settings from there.
It is not necessary to constantly monitor the state of the battery on the motherboard. But if you want the device not to fail at the most inopportune moment or important settings to be reset, you should replace the battery as soon as the first signs of its malfunction appear (usually this is a time lag).
BIOS is a software shell that ensures the stable operation of the computer. All its settings and values are stored on a CMOS microchip, which, unlike a hard disk, is volatile and needs a constant source - a battery - to power it. If she sits down, the computer will stop turning on.
Maintenance
What is the battery on the motherboard for?
It is needed in order to power the CMOS dynamic memory chip, which stores not only the main BIOS values, but also the computer configuration settings. These include: boot priority from a specific media, power saving mode, memory status, display type, keyboard settings, and others.
Symptoms indicating that the battery needs to be replaced:
- Regular loss of user settings.
- The computer or laptop cannot be turned on.
- Each time you start the operating system, the system time is reset and it differs from the real one. This does not allow you to use many programs, some sites do not open, and the antivirus stops working, pointing to outdated databases.
- Frequent sudden restarts of the computer. This leads to the loss of important documents, as well as to incorrect closing of programs.
- The device boots up slowly.
- BIOS displays a message about the need to replace the battery.
Where is the battery located on the motherboard
The location of the battery on the motherboard may vary depending on the manufacturer of the device. But it is almost always easy to visually determine it - it is a round-shaped lithium battery tablet with a diameter of 2 cm, located in the slot-cell, near the CMOS chip.
On some boards, this battery may have a non-standard form of fastening: for example, a plastic closed container where it is simply inserted or even soldered to the board. But in some laptop models, it can be very difficult for an ordinary user to get to it, since its detection requires a complete disassembly of the device.
What battery is in the motherboard on a computer and laptop
To replace the CMOS battery, it is advisable to use the same one that was installed on the device when it was purchased. Usually, this is a battery marked , it has the following dimensions: diameter 20 mm, thickness 3.1-3.2 mm, and nominal voltage - 3v. Such devices are used in many household appliances and can be purchased at a regular electronics store.
There are other batteries that, according to their characteristics, can be suitable for powering CMOS memory, they have the same diameter, but a smaller capacity and a different thickness, for example, 2.5 mm, and 1.6 mm. When installing them, you must follow the basic rule - the right size and the right voltage.
How to change the battery on a computer motherboard
The easiest way to replace the battery on a computer is that you do not need to have special skills and knowledge.
The main thing is to follow the basic safety rules.
- Buy a battery of the same model that was previously on the computer.
- Shut down the device and turn off the power supply. After all, it is in the system unit that the motherboard is located.
- Remove the cover from the left side of the system unit by unscrewing the bolts.
- Visually locate the battery and pull it out of the groove by simply picking it up with something sharp. It is important not to make too much effort so as not to damage the motherboard.
- Insert a new battery.
- Assemble the computer by closing the cover of the system unit, connect it to the monitor and the network.
- Make BIOS settings.
Some masters, in order not to reconfigure the BIOS, recommend changing the battery without turning off the computer from the network, but because of this, a short circuit may occur in the motherboard and it will burn out.
How to change the battery on a laptop motherboard
The tablet on the laptop motherboard changes in the same way as on the computer. But, there are exceptions - some models do not provide quick access to the CMOS battery, then you need to contact specialists to replace it.
Replacing the battery in a laptop step by step:
- Turn off the device, disconnect the charger and remove the battery.
- Open the laptop case by opening the back cover.
- Visually determine the location of the battery and remove it from the special groove. In some cases, it is in a closed plastic container located vertically or horizontally on the board. In this case, to get it, you need to press on a special lever, which is located on the side of the container.
- Change the battery.
- Set up BIOS and start the device.
If the CMOS battery is replaced quickly, in just 5-7 seconds, then the user BIOS settings in this case will not fail and they do not need to be configured again.
You can replace the battery on the motherboard both in the service center and on your own. It is advisable not to wait for its complete failure, but to do it every 3-6 years. In order for this battery to work stably, when buying it, it is better to give preference to well-known Japanese and Korean manufacturers.
Japanese quartz or Swiss mechanics? This question has been haunting the minds of millions of future watch owners for several years. Undoubtedly, with the advent of the Apple Watch and "smart" wearable devices from third-party developers, sales of classic wristwatches have noticeably decreased, as Swiss manufacturers have repeatedly reported. Both smart devices and multifunctional quartz are "dependent" on electricity, or rather on a small power supply. But if “smart” devices need to be charged almost every day, then a regular battery in a watch is enough for a couple of years of work. How to change the battery in a wristwatch and at the same time not disrupt the performance of the device, we will tell in this article.
Sooner or later, every owner of quartz will think about the above question, since nothing in our world lasts forever. Of course, you can go to a watch shop, but it's much easier to buy a battery in a store and replace it yourself at home. When buying, you should not save, as a low-quality battery can damage the watch mechanism. A high-quality power element, as a rule, ensures the operation of watches for 2-5 years.
To replace the power element in the watch, you must first remove its back cover. As a rule, there are several ways to attach the cover to the case. It can be either pressed or screwed in with small screws. If there are screws on the edges of the cover, then unscrew them with a small watch screwdriver with the appropriate profile. And when unscrewing, you should not rush, because the screws are quite fragile. If there are no screws on the back cover, then find a small recess, pick it up with a screwdriver or a knife and peel off the cover.
However, there are watches with fastening in the form of a threaded ring. In this case, small notches are applied on the back cover in a circle. As a rule, such covers are unscrewed to the left side.
Replacing the battery in the watch will not cause difficulties with skillful handling of tools. After opening the back cover, carefully inspect the internal mechanics, remember the location of the battery and its polarity, and then carefully remove the power cell with non-metallic tweezers. It is important that the new battery in all respects (diameter, thickness, voltage) correspond to the element being replaced, otherwise the watch may lose its performance.
After installing the power element, make sure that the watch is working and carefully screw or press the cover. When doing this, try not to touch the battery with your fingers. If the back of the watch is labeled Water Resistant, do not damage the seal when closing the lid.
New generation quartz uses End Of Life technology. The low battery indicator (EOL) system is activated when the battery power is low. If on a watch equipped with the EOL system, the second hand stopped jumping every second and began to count 4 seconds, then this indicates that it is time to change the battery on the watch.
A video on how to change the battery on a watch is available below:
A wrist watch is an accessory that every modern person has. Quartz devices are very popular. When using them, you have to periodically change the battery. The cost of such a service in Russia costs from 50 to 2000 rubles.
What is this?
Replacing a battery in a watch means removing the old power source from the device and installing a new one. The procedure can be performed on your own. But it is better to trust expensive brands to specialists: it is not easy to change the battery in them, you can ruin the accessory. A good power supply should last a year or more.
A person can understand that it is time to change the battery by the following signs:
- The device shows the wrong time.
- The minute hand stops intermittently.
- The second hand moves 4 divisions at once.
Service looks like this:
- The device is being diagnosed.
- The old part is removed.
- The accessory is being cleaned.
- The seals are treated with silicone grease.
- If necessary, certain parts are replaced.
- A new source is installed.
- Functionality is checked.
Replacing the battery does not take long: the procedure lasts 10 to 35 minutes. Repairs can be carried out at the client. If the watchmaker is provided with a watch of a rare brand with a non-standard opening, then it may take longer to change the battery. Difficult to repair watch devices with a case that opens through the glass of the dial. For this, a special syringe is used.
What does the price depend on?
Companies and private craftsmen who repair watch devices set different rates for work. The cost depends on such factors:
- Mark.
- Luxury accessory.
- The complexity of parsing the device.
- Fixture cost.
- Accessory material.
- Battery power.
- The type of battery used.
- The price of a new part.
- Watchmaker experience.
- The presence of additional elements (calendar, chronograph).
- The prestige of the company, its pricing policy.
Types of replacement and their cost
There are two ways to change the power supply:
- On one's own. In this case, the costs will be associated only with the purchase of a new battery. The disadvantage of the method is that you can do the work poorly, then the power source will quickly fail. There is a risk of breaking the clock mechanism (especially for expensive brands). Dismantling elite models requires a set of certain tools, accuracy.
- With the help of a watchmaker. In this case, the master is engaged in the purchase and installation of the battery. In addition to the purchase costs, you will have to pay a certain amount of money for the service to a specialist.
Many people choose the first method and then remain dissatisfied with the result. A high-quality replacement is possible only by a competent and experienced watchmaker. Therefore, do not save on repairs.
Approximate prices
The cost of changing the battery in watches in Russia varies from 50 to 2000 rubles. Approximate prices are shown below:
- Simple quartz grades with access to the block through the back cover - from 600 to 1200 rubles.
- Quartz chronographs with back access - from 800 to 1500.
- Non-standard brands with a dovetail head, accessed through the front glass - from 1000 to 1800 rubles.
Changing the battery costs the most in Harry Winston, Louis Vuitton, Franc Vila models. The procedure for the brands Armany, Appella, Grovana will be the cheapest. In models of little-known manufacturers, the price of a change can be 50 rubles.
How, where and from whom to order the service?
There are two options for changing the power supply:
- Do the work yourself.
- Contact a watch repair company.
- Contact a private watchmaker.
The first option is suitable for those models that are easy to disassemble. Complex brands should be trusted to specialists. You should contact specialized companies. It is important that the company has a license, a certificate, issues a warranty certificate, has been on the market for a long time and has good reviews. Private craftsmen do not give a warranty card and may perform poor quality work. Therefore, you should contact them only on the advice of friends.
Watch battery replacement
Preparatory stage
To determine how to change the battery in a watch, you need to open the back cover correctly, evaluate the type of power supply, and only after that make a replacement. Before carrying out any manipulations, a towel folded in several layers should be placed on the table, and a watch should be placed on it. You should also arm yourself with the smallest screwdriver available at home, and a knife with a not very sharp tip.
To remove the cover under which the battery is located, determine the type of fastening. It can be held on by screws or be tightly pressed to the case. In the first case, the screws are removed with a screwdriver, in the second, the cover is pry through the recess on it on one side. There is always a gasket under the lid, it is carefully removed, preferably using tweezers. Preparation completed.
1. The battery in a watch is a round metal tablet, its diameter varies from 6 to 9.5 mm.
2. It is better to use tweezers to remove the battery from the socket.
3. Be sure to pay attention to how the battery is installed in order to install a new one in the same way and not reverse the polarity.
4. To accurately select the size of the battery, you should pay attention to the number stamped on the back of the tablet. It can be a three or four digit number.
5. After a new battery is purchased, remove it from the packaging and wipe it with a soft cloth to get rid of any smudges or fingerprints.
6. The battery is placed in the slot in exactly the same way as the old one. From above, it is clamped with a clamp or screwed.
Any manipulation with a watch requires patience and accuracy. It is important to remember all the nuances of attaching parts in order to properly assemble the watch later. You can not press hard on the case, your hands should be clean, although experts do not recommend touching watch movements with your hands at all. To do this, use tweezers, special screwdrivers, calipers, etc. In any case, replacing the battery at home is realistic and without special tools.
