Category: BATTERY

A survey shows that people feel anxious and nervous when their phones have low battery.This week uk-online.co.uk offers 4 ways to get rid of Low-battery anxiety.

1.Use the Good-quality charger & charger cable

A good-quality charger & cables not only enable to fast charging but also protect your phone.

2.Solar charging can help you in outdoor

The Solar chargers don’t have built-in batteries, but they are more effective at converting solar energy to power. If you are going to clamp or other outdoor activity, the solar charger might be more suitable for you than the normal power bank for these reasons:1.It’s more portable 2.It can work sustainably as long as there is the sunshine.

3.Car Charger

A car charger is used to keep your phone juiced up when you are on the road.One function Car Charger shares the advantage of safety performance and top-level charging effect, compared to the multi function ones.

Tips for Car Charging：It’s better to start your car before your phone charging.Becuase the huge current at the car starting moment might have an impact on your phone.

4.Power bank

It’s hard to deny that a power bank is an incredible thing that saves us from the nervous and panic of low battery.There’s a massive selection on offer, catering for every need.

There are 2 tips for choosing a nice power bank from our product manager:

1.Check the brand and source of the cell.

2.Be careful to a small-size power bank with a large capacity.

Buying and installing a Dell laptop battery replacement can be very simple, and doesn’t have to cost a lot of money. There are a few things to consider, however, when buying a replacement battery.

Buying a replacement battery directly from Dell is one way to ensure quality, but buying directly from the manufacturer is usually the most expensive option. Instead, many buyers may want to consider a third-party retailer. Make sure you find a reputable retailer who stands behind their product, especially one that offers a satisfaction guarantee and a solid return policy. If you buy from a third-party retailer with a reputation for quality and customer satisfaction, you can pay less for your replacement laptop battery and still have the peace of mind that your battery will work reliably.

The best way to ensure you purchase the correct replacement notebook battery is to use an online parts locator tool. This tool allows you to choose your laptop’s model number and then shows you the parts that are compatible with your model. It is a good idea to compare the voltage and amperage from your old battery to ensure they match the new battery you are planning to buy. In some cases, you may have the option to buy a battery with more capacity and longer battery life than the one you are replacing. Most of these batteries accomplish this by including more cells. For example, the original battery may have 6 cells, while the replacement battery has 9 cells, and therefore, longer battery life.

Replacing the battery in your Dell laptop is very easy. First, shut down the laptop and disconnect the AC adapter to ensure that no power is running to the machine. Second, release the latch near the current battery, and remove the battery. Align the new battery in the same way the old battery was removed, and snap it into place. You may need to fully charge the battery before running the laptop from battery power only.

Laptop batteries are the remote power source for all types of laptop computers. They are what make laptops so mobile. Though laptops can be used without a battery, they are not nearly as convenient and lose a substantial amount of effectiveness. Laptop batteries have evolved over the years to become much more functional and durable than their predecessors.

In most cases, modern laptop batteries are lithium-ion batteries. They have good power to weight ratios and are more durable than many other types of rechargeable batteries. Laptop batteries made from lithium-ion also have no memory effect, meaning they do not need to be fully charged in order to have a full charge the next time.

Over the years, there have been many types of laptop batteries. In the beginning, mobile computing used AA batteries as its power source. This quickly went out of style when rechargeable batteries came onto the market, such as nickel cadmium and, later, nickel metal hydride. These were good predecessors to the current technology and represented a great improvement over acid batteries, but had some problems. They had to be fully charged every time and lost their ability to recharge after a while.

Eventually, even lithium ion batteries need to be replaced, just like all laptop batteries, but they do last substantially longer than earlier technologies. As laptop batteries age, they lost their ability to hold a charge because the resistance within the battery increases. Many manufacturers will recommend replacing laptop batteries with one specifically made by, or authorized by, the manufacturer of the computer.

How long laptop batteries last depends on the situation. Laptops that receive heavy use will need new batteries nearly every year. Others may find batteries last two years or longer before needing a replacement. Eventually, a laptop battery will become so diminished in its ability to hold a charge it will not be able to power the computer at all.

One of the newest features in laptop batteries is the rapid charge feature. Many times, charging a laptop will take hours. These new batteries are said to be able to recharge up to 80 percent of the battery’s capacity in only one minute. Of course, these rapid-charge batteries do cost more and may not last as long as traditional batteries, but the benefits may outweigh any diminished capacity, especially for business users who depend on the computer’s mobility on a daily basis.

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Static electricity seems pretty harmless in everyday life. Perhaps you walk across a carpeted floor, touch a metal light switch, and get a minor shock, but this is generally nothing more than a minor annoyance. When it comes to computers, however, static electricity can be extremely harmful to the sensitive components that make up a desktop or laptop. Let us take a look at why static electricity is harmful, and what you can do to prevent damage.

Static electricity, like any electricity, is an exchange of electrons. When you rub your feet against a carpet or other material, one object is positively charged and the other is negatively charged. When you touch another object with the opposite charge of your body, or an object that is neutrally charged, the electrons flow into the new object. The voltage of static electricity can actually be extremely high, up to 12,000 volts, which sounds very dangerous. In reality, voltage is less threatening to humans than amperage, and the amperage is very low.

Computer components, however, are much more sensitive to these voltages. In fact, a component can be damaged by static electricity with a voltage as low as 400 volts, while a human won’t likely feel static electricity until it is around 3500 volts. In other words, you could damage a component with static electricity and not even know it. In some cases, the component may not fail immediately, but the static electricity weakens it and causes it to fail much sooner than it would have otherwise, and consequently leading to a repair in most cases.

The most thorough solution to static electricity damage is to use an anti-static wrist strap. These straps plug into the AC ground of a wall socket or connect to the chassis of the computer to dissipate any static that builds up. You can also use additional measures such as grounded pads to add even more protection. With a little preparation, you can avoid damaging computer components with static electricity and save yourself a lot of time and money.

Laptop battery technologies have continued to improve over the years, and the result has been lighter, smaller batteries that provide more power and charge more quickly. Here, we will take a look at the current technologies of laptop batteries, and some of the advantages and disadvantages of each.

Lithium-Ion

The most popular laptop battery technology in use today is lithium-ion. Li-ion batteries provide power when the lithium ions carry current from the negative electrode to the positive electrode. Ions move in reverse when charging. The main advantages of Li-ion batteries are their low price. It is one of the least expensive battery technologies to make. The batteries also have a very high power to weight ratio, which allows lightweight batteries to still provide a lot of power. Another advantage of Li-ion laptop batteries is they don’t suffer from the “memory effect” common in earlier battery technologies.

Lithium Polymer

As a subset of lithium-ion batteries, lithium polymer uses a special polymer composite to hold the electrolyte that can be molded into almost any shape and still retain its functionality. This makes it easy to design a battery to fill the available space, and therefore provide more power. It carries most of the same characteristics of lithium-ion batteries, just in a more flexible format.

Nickel-Metal Hydride

Nickel-metal hydride (NiMH) batteries are less common today, and have largely been replaced by Lithium-Ion technology. NiMH batteries are very rugged and resistant to damage and were used in laptops in previous years for this reason. Unfortunately, manufacturing a laptop NiMH battery is expensive, so it is less economical.

Nickel-Cadmium

Nickel-Cadmium (NiCd) batteries are also very rugged and resistant to damage. While this made them a good choice for laptop batteries, they often exhibited the “memory effect” in which they would lose capacity if not charged and discharged correctly, which made them a poor choice for laptops as users typically are inconsistent in how they charge and discharge their batteries. It has also been replaced by lithium-ion technology.

Battery technologies continue to evolve, as laptop manufacturers, repair shops, and part retailers continue to look for lighter, more reliable and less expensive solutions to power their computers. While new technologies such as lithium polymer show great promise, others may be just around the corner, and consumers will continue to benefit from these innovations.

Laptops are made for portability and ease of use, so the battery is one of the most essential components, providing power when away from a wall outlet. Here we will look at how a laptop battery works.

The most laptop batteries use Lithium-Ion technology, or Li-ion. They are so-named because the movement of lithium-ions from a negative to a positive electrode as they travel through a non-aqueous electrolyte. This discharges the battery and releases the energy to power the laptop components.

The inside of a Lithium-Ion laptop battery consists of an anode made from carbon, a cathode made of metal oxide, and an electrolyte, which is a lithium salt in an organic solvent. The reaction is contained within multiple “cells” inside the battery. Batteries with larger capacities (and longer battery life) usually contain more cells. Some very large Toshiba laptop batteries can contain up to 12 cells. Some Sony laptop batteries contain as few as 3 Cells due to the ultra portable design of some of their machines. These will provide less battery life, but will keep the machine small and lightweight.

There are a number of chips in most batteries to control the charge and discharge, as well as a number of safety features. Many batteries have a chip which shuts down the battery in the event of extreme overheating to avoid a potentially dangerous situation.

Charging the battery essentially works in the reverse of discharge. The power coming in through the AC adapter and the charging circuit actually provides a higher voltage than the battery’s normal operating voltage. This causes the lithium ions to move from the positive to the negative electrode and they are deposited in a porous material and stored for later use.

The outside of the battery is usually constructed of rigid plastic or metal, depending on the laptop model. The outer case usually incorporates vents to allow heat to escape, as heat can be very damaging to a battery. Most laptop batteries are color matched to the plastics of the notebook for aesthetic reasons.

The one disadvantage of Lithium-Ion batteries is that they tend to lose capacity over time. This is caused by deposits that form in the electrolyte of the battery. This begins to inhibit the battery’s operation and results in less charging capacity. Once the capacity gets low enough, the battery should be replaced.

While Lithium-Ion laptop batteries are currently the most popular, newer technologies such as lithium-polymer are stretching the boundaries of current laptop battery design. As laptop batteries continue to evolve, engineers will undoubtedly be able to provide more power, longer battery life, and reduced charge times to improve the portability of the laptop computer.

Laptop and battery manufacturers are constantly working to improve battery life and cut down on the time it takes to recharge a battery. A new material known as Graphene could help manufacturers improve both.

Graphene is a material being developed by a company called Vorbeck. They say it could result in laptop batteries that charge more quickly and also have a longer life than current lithium-ion technology used in batteries for HP laptops as well as others. As an example, a cell phone battery which uses Graphene could potentially charge in around 10 minutes instead of two hours.

Since current lithium-ion batteries transfer ions between electrodes, for power, it can take a long time for them to charge, and they are not necessarily efficient at storing power. Graphene could potentially improve on these points. It can store more ions, which could greatly increase battery life, and its high conductivity makes it easier and faster to move ions, which accounts for its faster recharge times.

Safety and overall battery life may be improved as well. Since Graphene is more conductive, it produces less heat, and batteries operate at lower temperatures. This is good for the battery and the device, promoting safer operation and is less likely to cause damage from excessive heat. The lack of heat is also what allows the batteries to charge more quickly, as current batteries are often limited to recharge rates to avoid creating too much heat. For most laptop batteries, like those used in Compaq laptops, it is standard to have a thermal sensor to read the internal battery pack temperature and adjust the charging voltage accordingly for safety.

Graphene batteries are potentially more rugged than current lithium-ion batteries. The materials are able to swell and flex without breaking down, unlike current technologies, which slowly lose capacity. This could lead to a much longer usable battery life before the battery needs to be replaced.

As better technologies continue to improve, companies like Vorbeck have the potential to revolutionize battery technologies with better materials that offer multiple improvements. Only time will tell if laptop manufacturers and retailers will adopt Graphene as the standard for future battery technology. It certainly shows promise in an area that is in need of improvement for laptop usability.