Battery UK

Memory Technologies

Since the early days of computing, RAM (random access memory) has been necessary for storing temporary information that the computer needs to access quickly. Since that time, however, memory has undergone many changes and configurations. Let us look at some of the major types of memory and their differences.

DRAM

(dynamic random access memory) distinguished itself from earlier SRAM (static RAM) in that it used a transistor and capacitor to store its data, and it is the basis for most modern types of RAM.

SDRAM

SDRAM (synchronous DRAM) was one of the earliest types of RAM to come in separate sticks that could be replaced, as earlier memory types were part of the motherboard. The modules operated at 3.3 volts and used 168 pins to transfer data.

Rambus (RDRAM)

Rambus was a technology used by Intel from 1999 to 2003. It offered better performance than current solutions at the time due to the fact that the memory could read and write on the rise and fall of a clock cycle, effectively doubling its throughput. The technology never became widely mainstream and was replaced by other options.

DDR, DDR2, etc.

DDR SDRAM (double data rate synchronous dynamic RAM) is an improvement on the original SDRAM technology. The technology has the ability to read and write on the rise and fall of the clock cycle, similar to Rambus, and has continued to evolve to faster clock rates and better performance over many years. The original DDR standard was replaced by DDR2, DDR3, etc. but none of the standards are backward-compatible, making it impossible to use older memory in new computers.

Memory technologies have continued to improve and evolve since the dawn of computing, and there is no reason to think they will stop any time soon. As more and more computers move to solid-state drives instead of platter-based drives, the performance bottlenecks are improved, meaning faster and better-performing RAM may be needed again soon.

 

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One of the most common issues with laptop batteries is overheating. Not that the batteries are designed poorly or improperly but due to, in most cases, user wear and tear. While the laptop is using the AC adapter for power the battery acts as a backup in case of a loss of power or accidental unplugging. During this AC power use the battery becomes hotter than it would if being used independently. To lessen the chances of this overheating, which leads to a shorter life expectancy of the battery, keep the AC power adapter plugged in only if you need to charge the battery while using the device.

If the battery is consistently hot to the touch, remove it and allow it to cool down making sure it is close to room temperature before reinserting it. Should the battery continue to overheat or get too hot it will probably need to be replaced. Always replace a defective battery as soon as possible as it could cause irreparable damage to the laptop in question. In addition to overheating, failure to charge or hold a charge is another very common issue with laptop batteries.

First check to see if the AC adapter is securely plugged into the device; the tightness of the connection will vary from laptop to laptop but it should be held in place well. To check for a good connection look for the battery charging LED if one is present on your laptop.

If it is not on wiggle the cord to see if the connection makes and breaks contact. If you notice a flickering LED light then the solution is a new adapter which is far better than needed to purchase a new battery or a new DC power jack which can be repaired by a common user with a little instruction and help.

 

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First and foremost you need to disassemble the laptop and remove the motherboard. Locate the DC jack on the motherboard, typically speaking, it is an almost square component with a metal casing located at the back of the board in relation to where it was in the laptop. Using a soldering iron set to around 800° F, heat and remove the solder holding the DC jack to the board. Removal of the solder is best achieved by using a desoldering pump. You may need to turn the motherboard over to completely loosen and remove the solder. You may be tempted to pull the component if the solder is almost off; do not do this! You run the risk of damaging the motherboard permanently.

After removing the component, take a small amount of 99% pure isopropyl alcohol and apply it to an old tooth brush and gently remove the solder film, also called flux; this creates a clean surface for the new DC jack to be connected. Be sure the soldering iron is cleaned after the disassembly process to prevent dirt and debris from becoming attached to the contacts. Take the replacement DC jack and apply a small amount of solder to each contact; then apply a fresh bit of solder to the leads on the motherboard prior to attaching the component.

It is important that both sides of the motherboard have solder applied to them to ensure the best possible contact with the DC jack component. At this point you are ready to connect the jack to the motherboard. Place a small box or piece of wood under the DC jack and place the motherboard on top. Simply apply fresh solder to each of the leads and the repair is complete. Should you need to correct an incorrect solder simply use the iron and desoldering pump to remove and reapply. Finish by reinserting the motherboard into the laptop.

 

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A cordless charger provides charge to the battery in an electronic device without a cord extending from the device to the power source. In some cases, this means that the device, or its battery, is plugged directly into the wall. Other cordless chargers use induction to transfer electricity to a device that is set on top of it. Solar and battery powered chargers are other types of cordless chargers.

One type of cordless charger is a wireless charging pad. This charger pulls energy directly from a wall outlet and transfers it to various electronic devices, such as cameras, cell phones and electronic readers that are placed on top of it. One of the advantages of charging with a pad is that multiple devices can be charged at the same time. The charging pad is limited to about six small electronics at a time, which is about the number that will fit of the surface of it.

Devices charged with a charging pad must be connected to a receiver in order to obtain electricity without plugging into the charging pad. Receivers can be attached to the outside of the device or to the battery inside. The devices are charged through induction, which is the transfer of electromagnetic energy from one coil to another. In the case of a charging mat, one of these coils is in the mat and the second is in the receiver attached to the electronic device.

Another type of cordless charger is a portable solar cell. Small electronic devices plug into the charger, which is able to draw energy from exposure to direct sunlight. Solar chargers may be specifically designed to work with a certain device or may come with a series of attachments in order to connect to various electronics. These chargers are useful for traveling to places where electricity may be limited or unreliable.

A cordless charger may also plug into a wall socket and then directly into an electronic device. These chargers only work with small devices because the device will need to sit on the charger, above the wall socket, while it is charging. Sometimes these types of chargers can be designed to charge a battery that is taken out of the electronic device.

Emergency chargers are also available that can charge a device without access to an electrical outlet. Powered by batteries, an emergency cordless charger can plug in to a number of different types of electronics. The electronic devices pull power from a battery powered charger in the same way that they would from a wall socket. Emergency chargers can come with disposable or rechargeable batteries.

 

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Choosing the best laptop car charger is a matter of examining a few simple options and selecting the one that best suits a person’s needs. Some chargers are made for a specific brand of computer and plug directly from the car’s cigarette lighter into the back of the machine. Power adapters that convert the 12-volt direct current (DC) coming out of the cigarette lighter into 110-volt alternating current (AC) are also available. Two- or three-pronged plugs can be plugged directly into these adapters.

One option for a laptop car charger is to purchase a power cord that plugs directly from the cigarette lighter of the car into the laptop computer. Each brand of computer uses a power cord with different specifications, so it is important to select an adapter that is made to be used with the computer. This type of laptop car charger it a good option for a person looking to charge one computer or a couple computers of the same brand. These chargers will only supply one computer with power at a time.

Universal adapters that come with a set of attachments that accommodate most brands of computers are also available. Though they can charge many types of computers, they can still only power one computer at a time. A universal laptop charger or a brand-specific laptop car charger are both relatively inexpensive options.

A power adapter is another way to charge a laptop from a car’s cigarette lighter. These devises are designed to convert 12-volt DC power into 110-volt AC power. The computer’s usual charger can then be plugged directly into the adapter, eliminating the need for a laptop car charger. This is a good choice for someone who wishes to charge more than one type of electronic device from the road.

Some power adapters are made to accommodate one or more plugs at the same time. Charging two computers at once or a computer and a phone at the same time will require an adapter with at least two plugs. Computers, phones, cameras and other electronics can all be charged from a power adapter.

There are power adapters with a variety of different output levels. Reading the power requirements of the laptop is the first step in choosing the right charger. It is very important that the output of the adapter fall within the computer’s acceptable range because a lower or higher output could damage the computer. The price for power adapters ranges significantly. While price is not always indicative of quality, it’s a good idea to check product reviews to determine if a bargain adapter is worth the initial savings.

 

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What is a Power Bank?

A Power Bank is a mobile charger can be charged in advance for later phones, tablets or laptops to recharge. A Power Bank is a handy gadget that you can charge your electric devices without a power socket. This is useful if you’re on the road for example.

How do you charge a power bank?

A Power Bank you can charge by connecting it to a power outlet. Most Power Banks use USB powered. This means that a power bank, like a smartphone, iPad or GPS system is charging by connecting it to a USB charger (which comes standard with most smartphones and tablets) or those with an often USB cable to connect to a computer. Power Banks, suitable for charging laptops are often charged by a supplied adapter. Solar Power Banks are in addition to the standard method of charging (USB or adapter) also charged by a solar panel that is part of the Power Bank.

What can you recharge with a power bank? And how do you charge anything?

What you charge is used depends on the type of power bank with a power bank. So we distinguish Laptop Power Banks and USB Power Banks.

USB Power Bank

With a USB Power Bank you can charge all products which are recharged through a USB connection. Connect the cable for charging your smartphone or tablet to the power bank and he usually starts automatically recharge. In another Power Banks you have to press a button and charging starts. Before you can charge with a Power Bank, Power Bank must first have been charged anything. Most Power Banks have convenient LED lights that indicate whether and how far it is charged.

For most Banks Power cables and connectors are supplied with which you can charge the Power Bank and most smartphones, tablets, cameras and game consoles can recharge.

Laptop Power Bank

Laptop Power Bank is charging through it (often with included adapter) to connect to the mains. With the included adapter and connecting pieces is virtually connect any laptop. Look in the product description or a Laptop Power Bank is also suitable for your laptop.

How does a power bank?

In a Power Bank are one or more lithium-ion cells. This lithium-ion cells function much the same as normal rechargeable batteries and charging through a USB connection or through a mostly supplied adapter / cable.

How long does a Power Bank with?

How long a Power Bank anything can charge depends on the ability of the Power Bank. The output specified in mAh indicates how powerful a power bank. The greater the power, the longer the Power Bank is able to charge something. Or a power bank a phone, tablet or laptop partially, completely or multiple times can charge, is also dependent on the ability of the device you are trying to charge. For example, a digital camera has a limited capacity, a phone in a somewhat larger capacity and tablets and laptops have very much power. To answer the question of how long a power bank will last and how often you can charge your phone or tablet, you should know how powerful the battery in your gadget. Roughly you can share the power of the power bank by the ability of your gadget. The result is the absolute maximum number of times you can charge a product. Because the Power Bank needs energy to charge something and lose over time energy is the real power is often lower.

How long does it take to recharge a power bank?

How long it takes to recharge a power bank depends on the capacity of the Power Bank. So it takes longer to charge a power bank which has a great ability as a power bank with a limited capacity can be quickly recharged. Many Power Banks have handy LED light that indicates when the power bank is full. However, it is wise to let the Power Bank a few hours in the charger when the LED light indicates that it is full. Stronger Power Banks can allow for the first time the best overnight in the charger, so you’re sure it is fully charged.

 

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What is Qi technology?

Qi technology is the new standard used worldwide for wireless charging. Many great brands such as Samsung, LG and HTC, are already using the technology. This technique was developed by Wireless Power Consortium . Qi is pronounced as ‘chi’.

Wireless charging means that your phone and the charger no longer need to be connected to a cable. You can place it just on the charging pad and it automatically charges. The charger itself often must still be plugged in.

There are now already power banks with this technology. These can so easily take and when the power bank is charging needs no cable here.

The technology has already been used in the Oral-B toothbrushes. Also, almost all smart watches using this method of charging.

How does the wireless charging with Qi technology?

Qi technology uses induction. There are two coils, one receiver (eg your phone) and 1 transmitter (the charger). The transmitter radiates a magnetic field. The receiver has just such a coil is that the magnetic field again this revenue stream. This stream is then transported to the battery / battery from your phone.

At the first Qi-technology, it was possible to charge a device within a range of 5 mm from the charger.

The new technology makes it all possible to recharge a device within a radius of 4 centimeters. Even more devices with the new technology can be simultaneously charged with only one charger.

Will this technology replace the cable?

Wireless charging could in principle replace the cable. However, we think that this is going to last long.

At this moment, the Qi technology can only load. Exchanging data between your phone and computer. This can be via Bluetooth or Wi-Fi but this works in practice is often not as easy as a cable.

Which phone is capable of wireless charging?

We have created a special page which we will update regularly. Here is a list of all phones that are capable of wireless charging.

Can my phone wireless charging?

What’s for sale for wireless charging?

At present, to obtain, there are 3 types of products:

• Power Banks with Qi technology
• Chargers / charging pad
• Receivers

What should I buy to recharge wirelessly?

If you want to charge wirelessly you need to know if there is a Qi receiver is in your phone. This is what phones have this.

There is a receiver in your phone? Then you just need a charging pad or a power bank with Qi technology purchase. This will work flawlessly.

Does your phone still does not have a receiver but this one is available for your phone? Then you need a receiver and a charger / power bank buying.

If your phone is not suitable to charge wirelessly? You can always buy a charging path with micro USB / lightning output. These are suitable for any iPhone / Android phone.

How do I place a wireless receiver in my phone?

A wireless receiver is very easy to place in your phone. On the picture below you can see how to do it.

How to install a wireless receiver?

1. Open your phone
2. Remove the sticker of the wireless receiver
3. Place the receiver on the battery so that the iron pins falling on each other
4. Rub over there as well and make sure the wireless receiver is tight
5. Close your phone again
6. Now your phone is ready to charge wireless

Do you have a phone that is not suitable for wireless charging and you bought a wireless charger with Lightning / micro USB connector bought you can place it on the inside or outside of your phone. Make sure that the receiver cable taut passes your phone.

 

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It is important that you take good care of your laptop to keep it working well. Following these easy steps will ensure that your laptop lasts longer and requires less maintenance. As an added bonus, many of the steps will also maintain your laptop’s speed. It is also useful to do a check of the laptop once in a while to remove any errors or problems which might have crept in during the routine usage.

1.Keep liquids away from your laptop. As tempting as it might be to drink coffee, soda, water or any other liquid near your laptop, accidents can happen all too easily. Alternatively, use a cup with a cover on it, so even if it does spill, the liquid doesn’t go anywhere. Spilled liquids may damage the internal microelectronic components or cause electrical damage. Short circuits can corrupt data or even permanently destroy some parts of the laptop. The solution is very simple: Keep your drinks away from your computer. Even if you are careful, someone else might spill your drink.

2.Having antivirus software available is the best defence against a virus. Even if you know what you download, it could still contain a virus. If you choose not to have antivirus software you run the risk of a circuit error or software problem in your system. The virus may also slow down the system operations and performance.

3.Keep food away from your laptop. Don’t eat over your laptop, the crumbs can fall between the keys and provide an invitation to small bugs or damage the circuitry. Worse yet, the laptop will look dirty if there are crumbs on it.

4.Do not use your computer in a room where animals are. Their fur and hair can get into the internal workings and damage them. Also larger animals (e.g dogs) can accidentally damage them by knocking them off their support by brushing past, wagging tail, tripping over leads etc.

5.Ideally keep the computer in a clean and dust free room.

6.Protect the LCD display monitor. When you shut your laptop, make sure there are no small items, such as a pencil or small ear-phones, on the keyboard. These can damage the display screen if the laptop is shut on them; the screen will scratch if the item is rough. Close the lid gently and holding it in the middle. Closing the lid using only one side causes pressure on that hinge, and over time can cause it to bend and snap.

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If you drop your cell phone in water, it is often possible to salvage it. Time is of the essence, however, so the first thing to do is to get your cell phone out of the water as soon as possible. Leaving a cell phone in water for even a few seconds might damage it beyond repair, but there are a few things that you can try and that sometimes work. The main things are opening the phone as much as possible, taking out the battery and completely drying off all of the components.

Remove the Battery

After retrieving your cell phone from the water, the next thing to do is to remove the battery immediately, without even hesitating to turn off the power. This reduces the risk of a short circuit that would render your phone useless. Dry the battery with a towel, and it set aside to dry thoroughly. The battery itself might not work again, but it can be replaced fairly inexpensively. Even if the battery does work, it is a good idea to get a new one to avoid the risk of having the old one leak battery acid.

Take It Apart

After you have removed the battery, dry off the cell phone with an absorbent towel as best as you can. Use cotton swabs to soak up water in crevices and on any fragile, exposed circuits. If you have dropped your cell phone in water, it also is helpful to disassemble it, if you can, and let all of the parts dry separately. Just be sure that you know how to put it back together. If it is a flip or sliding cell phone, leave it open to allow for maximum evaporation.

Avoid Mineral Damage

If you drop your cell phone in water that isn’t pure or another liquid, such as a beverage or in salt water, rinse off the phone with fresh water after you have removed the battery. After you drop your cell phone in water, a quick rinsing is unlikely to do any further damage, but salt, sugar or other materials might. You also could try giving your phone an alcohol bath. The alcohol will displace minerals and microscopic substances and will aid in the evaporation of the fluid. If it is available, you should use an alcohol concentration of 95 percent rather than rubbing alcohol, which usually has a concentration of 70 percent.

Let It Dry

After your phone is clean, leave it in a warm, dry area or near an air conditioner for at least three days before you attempt to replace the battery and turn it on. This is very important, because although you may think that you have thoroughly dried it, the slightest moisture can react with the battery and cause it to short circuit. Putting your cell phone in a container full of dry rice grains also can help dry it out. Make sure that the rice completely covers the phone.

Warranty Likely Voided

Unless you have insurance for your cell phone and it covers water damage, there probably is no point in sending it to the manufacturer with the hope that the warranty will cover the cost of a replacement. If you drop your cell phone in water, the warranty probably will be voided. The manufacturer’s technicians will be able to tell immediately that it has been dropped in water because of the moisture-sensitive stickers that are placed inside almost all cell phones. The best thing to do is to dry it out yourself and hope that it still works.

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