In general, the current battery of Dell Studio 1555 have good comprehensive protection. Not only are multiple series / parallel battery circuit board itself also contains two modules: protection module PCB Board Module and smart battery indicator, a set of design includes battery protection IC protection (to prevent battery in the prime nivelsobre the discharge, short circuit), the second-level protection IC (to avoid a second surge), fuses, LED display, temperature control and other components.

In the mechanism of multiple layers of protection, including the charger, computer in an anomalous situation, the battery can only be converted to automatic protection status, if the situation is not serious, often working after re-plug, no explosion. The first is the most severe, a short circuit will directly and very hot, resulting in vaporization of some of the electrolytes, slice battery cover.

According to analysis, Dell 1555 battery explosion caused by a short circuit or overload, probably manufactured lithium batteries, because the manufacturing process is deficient, leaving the existence of product safety problems can occur at any time, as the two poles should be insulated but metal powder or sheet copper and aluminum foil membrane drilling burr among them, resulting in micro short circuit.

There is also a very special situation, the charger or equipment due to special reasons, lithium battery instantly provides the high voltage / strong currents that leads to severe stress, such as charging voltage v mbm1260 suddenly rises to 12.9 v is greater, then it would produce a high flow, should be cut in the circuit charge current to recharge the battery, but action due to battery voltage lithium, depending on the design of current protection is very weak This can lead to damage of IC, battery protection.

Studio 1555 battery to lose the protective function and extremely damaged, after crystallization overload around lithium metal needle piercing points ahead of several micro chip short circuit, causing the battery temperature gradually raised, until finally battery explosion, fire phenomenon, which is now a lot of main reasons for the “mess” of portable batteries.

Samsung released yesterday in South Korea ultrabooks a new line, called Ultra Series 5. They continue with the same slim design of the Series 9 and Series 7 Cronos but one of his models is a big difference that is not common in laptops of this type, so the model in question presents an optical reader. There will be two main models of fourteen-inch and thirteen inches.

The 14 inch is 20.9 millimeters thick and weighs 1.8 kilograms and a storage capacity Solid State Drive disk from 500 GB to 1 TB. To complete such equipment placed Samsung optical drive, video card AMD Radeon 7550M Ethernet and HDMI and outputs. Meanwhile the 13 inch is 14.5 mm and a limited capacity to a solid state drive up to 500 GB. Even though this model does not present the two outputs optical drive present in his older brother are also present in the smaller model.

The first model will be sold for a price equivalent to $ 1,345 and the second will be in South Korean stores for a price of $ 1,300 according to the report of the company. Both models will be launched this month in the host country of Samsung. In spite of the Series 5 ultrabooks be termed by the company and be sanctioned by Intel who was the creator of these laptops specifications fourteen-inch model are not in the current requirements of chip maker.

Meanwhile Samsung launches a new all-in-one with a touch screen, Samsung launched a new model all in one computer touch screen. DP700A3B called a model aimed at business and home consumers with 23-inch screen and a balanced set of hardware for your proposal. The computer offers an Intel Core i5 2390T which operates in conjunction with a very strong power of 8 GB of RAM. Without the use of a dedicated video card all in one company’s stake.

With the 23-inch screen offers a pleasant computer experience in high-definition video. The operating system is Windows 7 Home Premium 64 bits. There is also a model with a smaller processor, the Core i3 2120T we in turn can also choose a lower memory 6 GB of DDR3 RAM. With Full HD resolution would be expected to have a Blu-ray drive, while Samsung wish to offer just the DVD combo drive. The computer storage is provided by a 1 TB hard drive with 7,200 rpm.

Besides all this, the computer provides resources such as USB 3.0 connectivity, four USB 2.0 ports, Bluetooth 3.0, 802.11 and HDMI port. The new all-in-one Samsung is priced at $ 999 and can now be found in the North American market.

After netbooks, Acer will focus on the sale of ultrabooks, the ultra-thin notebooks to Intel on established markets like the United States.

The computer manufacturer based in Taiwan announced that in 2012, he devoted himself mainly to manufacture ultrabooks, the new class of ultra-thin laptops from Intel. Acer also wants to pursue a strategy very incentive to users to be more likely to buy their PC. The manufacturer will first work on established markets like the United States in particular. In an interview with Dow Jones, JT Wang, Acer’s Chief Executive said: “Next year, the ultrabooks will be our main engine of growth. Users want a laptop lighter, thinner, with more autonomy.

Acer is not the only company to build on the success of ultraportables. Many manufacturers such as Asus, HP, Lenovo, LG and Toshiba, have already put on the path of these ultra-thin notebooks, and other manufacturers like Dell, Fujitsu, Samsung and Sony should stick to the trend in 2012. Some critics predict that nearly 50 new laptops for will be announced at the upcoming Consumer Electronics Show to be held in January 2012 in Las Vegas.

The ultrabooks are the answer to Intel’s MacBook Air from Apple that really cleared the market since 2008. They are expected to provide greater autonomy, view profiles of less than 2 cm thick, provide a very fast start, have solid state drives, incorporating the latest Intel Cor, all for for less than $ 1 000 HT.

The price advanced by Intel has so far been the most difficult objective to achieve. Last October, Acer was the first manufacturer to deliver a ultrabook below 1000 dollars, offering the S3 for $ 900. But to achieve this goal, Acer had to put in its rotary S3 hard drive instead of SSD. Subsequently, Acer has delivered a model incorporating an SSD for storage of files, but increased the price of ultrabook the way, from 900 to 1300 dollars.

Apparently, JT Wang seems to accommodate these ultrabooks more expensive because it has to bring more money into the coffers of the company by increasing its margins rather than selling quantities of cheap PC. “We will change our strategy to improve profitability, other than blindly seeking to gain market share with cheap products and low cost,” said the Chief Executive of Acer. A new discourse in the taiwainais.

It hopes that next year his company will expand its PC sales by 10%, largely due to ultrabooks, and also due to demand from emerging markets like China, India and Brazil, where territories Netbooks are still popular. In 2011, laptops are thinner have a positive impact on the company, which recently said it was on track to ship 250 000 to 300 000 ultrabooks by the end of the year. Users, meanwhile, have turned away cheap laptops from Acer and towards the shelves, or is it simply because of the worsening global economic situation.

So what will happen? Is Acer will continue to sell ultrabooks inspired by the Apple MacBook Air priced Apple? Or is that Acer is slashing prices in the month of June to gain market share?

A battery has two essential characteristics, the voltage in volts (V) and the amount of electricity expressed in Ampere-hours (Ah) or milliamp hours (mAh). The battery power is calculated as follows: Voltage (V) x amount of electricity (Ah) = Energy (Wh). For example: 19.5 V x 4400mAh = 85.8 Wh. Thus we speak of capacity for energy instead of power as general.

What type of batteries used in laptops?
At present, all the batteries that come with laptops are made using Li-Ion technology. These are a type of lithium in the lithium ion remains in the state. These batteries are expensive and that lithium is an expensive material. Its main advantage is the amount of energy we can store in a small volume.
Key Benefits
* No memory effect or very low
* Excellent amount of energy / volume due to the physical properties of lithium.
* Auto-download (natural discharge when the battery is not used) minimum.
* Much safer in relation to the first lithium batteries (in the metallic state) thanks to an integrated electronic circuit.

The main drawbacks
* Price, because of the complexity of manufacture and the material used (lithium)
* Significant deterioration when the battery is discharged below 10% (can lose up to 20% capacity at once!).
* Current limited load because of their internal technology and the danger of lithium, so the burden may seem slow.
* Low temperature resistance: It is recommended to use at a temperature between 20 and 25 ° C, and should not exceed 40 ° C if they can not hurt. Never be achieved at elevated temperatures in the range of 75-80 ° C because they may explode.
* As all these batteries deteriorate over time and nothing can reverse this process.

But you should pay attention to. The overall battery (batteries, lead acid batteries or lithium batteries, etc..) Pollute the environment so it should never be thrown away. They should be recycled (in some countries will find in supermarkets and computer stores where you can leave them for recycling). Never attempt to open a battery to repair it because you can burn or severely intoxicated.

It is often said that the first time we use a device equipped with a lithium battery (as I say, they are often called Li-ion) should be allowed to charge for eight or ten hours, but two or three hours (typical load one of these batteries) this device tell us that the battery is fully charged. This really was recommended when using Ni-MH batteries, but with the Li-ion is not absolutely necessary: ​​a lithium battery always carries an overload protection circuit which is responsible for turning off the power once detects that the cells that make the battery has reached its standard level (usually from 4.2 volts).

Therefore, once the device says “full charge” does not enter more current to the battery and has no effect whatsoever on the leave her more time with the charger connected. Also they say that should do complete cycles of loading and unloading to avoid the “memory effect”, that Ni-MH batteries was that if we put in charge a completely discharged was not missed part of the capacity of the battery from overcharging some of its cells.

In Li-ion batteries this is not necessary, and even more frequently as recommended and load cells are less time with current flowing through them. Li-ion batteries have no memory effect either and therefore we can load them better we come without having to wait until they are completely sold out as it did with the old batteries.

There are a number of things that are the worst thing that can make a lithium battery:
· The Heat: Li-ion battery loses capacity if stored in hot areas. Best suits them cold, but with keeping them below 25 degrees Celsius is more than acceptable. This is why batteries degrade some laptops very quickly if the design has not been taken into account that the area of ​​the battery should be cold, ie, away from the hard drive and microprocessor.
· Store fully charged for a long time: it is best to keep a battery at half load, if we do so with the battery fully charged your battery cells suffer and will deteriorate over time. It should be stored fully discharged for a long time what we will see in the next point.
· Leave the battery to discharge completely, if a Li-ion battery becomes completely lost its charge will not load. This point is reached when the device is off because the battery has a very low level of energy, since that is responsible for the above-mentioned circuit protection. Over time the battery is losing charge itself (self-discharge rate) and if we can load many months to lower the minimum threshold needed to start charging and the battery unusable.

To extend the battery life:
* Reduce heat: The Li-Ion are highly susceptible to high temperatures, so use your devices in a cool environment will extend its functionality.
* Turn off wireless transmissions: Infrared (IrDA), Bluetooth and Wi-Fi are real vampires electricity, being equivalent to maintaining a cell at any given time. Turn off these features when necessary.
* Avoid using your CD or DVD: The spending not only borne by the laser, but also the motor that spins the disc. Better not to mention the writers?
* Reduce the brightness of the screen: Some teams do it automatically, generate less light, less energy demand.
* Remove memory cards or USB keys: Do not let its small size fool you, energize it requires an additional flow of electricity. This is especially true for small devices such as phones or PDAs.
* Avoid using audio applications: Even with headphones, the sound generation requires a constant expenditure of energy. Worse still if they feed external speakers.

Energy saving of your laptop

For longer be able to use your laptop without a power outlet nearby, you can use power management (power management) work.You can change the BIOS settings thereof. For example you can slow down your CPU to work (economically) if you do not taxed. Whether your hard drive if you disable Dell xps m1710 battery for X number of minutes have not used.Usually there are already pre-configured settings such as (Maximum safe, maximum performance, etc. ..)

Do not start randomly changing settings, but think first moment about the possible consequences.The most energy at a laptop screen, CPU, CD-ROM drive and hard drive. (Usually in that order.)Working to increase the HP pavilion dv5000 battery can be one or more of the following things:
* Adjust the brightness of the screen as low as possible. You just save not only energy, but the life of the “lamp” will extend.
* Turn off your screen when you’re away. Or get a short delay the screen saver. (Use a “useful” screen. Flying Windows logo are not useful: You save nothing, instead you consume extra processing power.)
* Lower the volume or use headphones.
* Make sure the air vents (in and out) is not anything to be blocked, so that the processor is kept cool. Heavy processors and memory have their contribution to the heat, so the less things you do together, the less heat, less cooling required, and the longer your HP pavilion dv5 battery lasts.
* Remove CDs from the CD-ROM drive if you are not using. Some laptops have the CD constantly spinning and a lot of energy.
* Remove PC cards (PCMCIA, Cardbus) if you are not using them. Make sure to buy these cards if they are in an energy saving mode can be put.
* Use the sleep mode or hibernation (Suspend To Disk) mode, or turn off the computer when you’re just not used.

Turn on the external connectors (serial, parallel, infrared, USB, …) in the BIOS if you are not using them.Never work without batterySome clever people who read all this and to protect their HP pavilion dv4 battery will perhaps be inclined to their laptop without the battery (but with power) to work. This also is not recommended.The tension on the wall is full of peaks and valleys. These “wrinkles” are effectively eliminated from the battery, which actually serves as a capacitor.

Without battery, these lines passed to the laptop-electronics that can usually not take place and sooner or later gives up the ghost. (And a battery is still cheaper than a new laptop …)Old batteries are defective liver is best reflected in the manufacturer. These can then be recycled. (And sometimes you get discount when buying a new battery.) If you manufacturer the HP pavilion dv7 battery still will not take, write a letter of complaint and deposit it in small or hazardous waste at a battery collection point nearby.

The design of standard full-size dell inspiron 1300 battery notebooks, the manufacturers, it would seem, is not much room to do it in any way remarkable in appearance. The more that potential buyers of these models can hardly approve of at least one “artistic refinement,” if it will negatively affect the usability. In this case, the excess can only be called while the backlit logo on the lid, but it does not interfere in the work.

However, this laptop is clearly a kind of individuality that marks at the first acquaintance. Its nice to pick up! Also, it should be noted a strong lower body structure with the keyboard and – in contrast to her – rather thin cover, which bends at an energetic opening. However, with adequate effort to not be a problem, the more likely that the cause is not in the construction of the lid, and sturdy hinges. They are already firmly in vogue, so the dell inspiron 1501 battery laptop itself has to hold his other hand in the opening.

Good news: The screen opens almost 180 degrees. The wear resistance also needs to be on top: the cover and keyboard panel made of brushed aluminum.On the right side wall, in addition to the optical drive, two USB-fit port, power connector and lock slot Kensington.The left side: VGA port and HDMI, a couple of USB-ports, but the new standard 3.0, Network RJ-45 jack and three analog audio outputs. Set the location of ports and a classic, there is simply nothing to add, pleased that the relatively low-cost dell inspiron 1525 battery laptop already has a controller USB 3.0.

The lower surface is flat, the configuration allows the air vents to keep the dell inspiron 1545 battery laptop on your lap, not really disturbing the air. But putting it on soft or uneven surface, much less leave the load in such a position is not necessary.The user can access the hard drive, memory and wireless network adapter without using a screwdriver because the screws are missing. Although something that will cover poddevat, and be careful to not break it.

And the so-called chikletny design with relatively small area-keys – not the main reason. The first thing to note is too short key travel, in the absence of severe fixed in the down state. Therefore, the rapid typing has more pressing keys to avoid missing characters.A digital block and design requirements have forced designers to shift the alphabetic field far left, so I have to stretch your right hand or to sit somewhat at an angle to the screen. But it is also not very good.The layout is very similar to the familiar in dell inspiron 1750 battery desktop keyboards, except that most pleased at the Delete key is not quite a typical place next to the Print Screen.

The touchpad is nice this time, the selected ring illumination, with separate keys, to the extent of rough surfaces. You can disable it by clicking the appropriate icon in the upper left corner. In this respect, ahead of HP. Matrix dell inspiron mini 10 battery laptop has got the standard: with a glossy finish, 15.6 inches and the most common today a resolution of 1366 × 768 pixels. Brightness is almost no stock, even at very moderate background illumination does not have a desire to reduce its relatively high. You can also note a rather cool color temperature that can be partially corrected in the settings of the video card, but only for video playback.

In general, an attractive, stylish, elegant, strong of the exterior of this family is composed of noutom already quite a few articles, but on our web site you have not met this description, so let yourself relax a little and please the eye. Especially as a new laptop in the lineup can please with something brand new. And please do have something.When W1V is in the hands – it’s relatively small size for a 15.4 “matrix with low weight. One feels that the construction of the well have worked. Lid and the bottom of the Dell Inspiron 1720 battery notebook are made from soft-touch of the rough metal. The side faces – black plastic. On the roof just in center flaunts polished inscription “ASUS”.

The back is completely given over to the Dell Inspiron 6000 battery, and a hinge opening the lid a unique design that maximize open your laptop.The front panel is traditionally given over to an infrared port and audio jacks, which is enough: headphone / SPDIF, microphone input, line input. In addition, at the same end and located speakers, covered with netting. But that’s not all. The most interesting and unusual for a notebook on the front panel can be called W1V display hidden behind the mesh. It displays the number of orange LEDs playable tracks selected channels TV tuner and other related information. Just not a laptop, a dream modder!

Against this background, five common status indicators , located on the left side of the front panel looks very plain.Almost all of the connectors and interfaces located on the left side, flip closed with a plastic Inspiron 640M battery. In its closed position can be reached only to the power adapter socket which makes sense. In addition, the cover has vents, so that for removal of hot air from the processor need not worry.

Under the hood is the same output for external monitor D-Sub, jack adapter antenna interfaces for connecting to the telephone network W1V and to the Ethernet, an interface for audio / video adapter with RCA connectors and S-Video, card reader,Dell Latitude D810 battery, PC Card slot , another infrared port, S-Video output port IEEE1394, two-port USB 2.0. Here is such a rich collection. And one of the remotes, the one that is compact and flat, has an opportunity to get out of a PC Card slot when it is free.

The right side is less rich in connections, because here is the optical drive. Next to him are regular and free air vents USB port. Note that for connecting the same mouse you do not have to open the lid assembly on the left side. Oh, and here lies another slot for a security lock Kensington.The bottom of the Dell Latitude D820 battery laptop generous ventilation holes.Of course, in this situation by accident shut them is easy. But most of all, there’s no escape – performance coupled with the compactness of doing their job.

Under the hood exact same atmosphere prevails as the outside – a metal design of the class “Business” or “Elite” with a kind of subtle motif of Art Nouveau. If the short and dry – it is a classic Hi-Tech style. Keyboard, Dell Latitude D830 battery, and the frame around the LCD panel in black, but the main space for the hands,Touchpad and two buttons to it – the metal. The feeling is that it Touchpad metal, not painted in metallic!Touchpad with on account of its unusual bulge is located on the same level as the space under the wrist.

In the performance of the external appearance of the Acer AS07B41 battery designers have relied on the LG mod style “Hi-Tech”. And I must say it has paid off. A thin, even elegant, frame, finished in urban grays with black frame, the correct interface port razbroska and blue-green colors of LEDs look impressive. Laptop lid engraved company logo LG. Pick the best style – low-key, but it inspires confidence.

On the top panel contains only two essential indicators: laptop mode (off, on, sleep / standby mode in which case the indicator flashes slowly), and LED battery life.The front panel. There are built-in stereo speakers and a castle that is responsible for opening the Acer AS07B42 battery notebook. To the right – the output interface, IrDA.The left panel bears the analog video output, which is used if an external monitor, parallel port, LPT, two ports USB 2.0, microphone and line shared with Line in inputs and outputs an integrated audio solutions.

On the right of the Acer AS07B51 battery laptop is placed multikardrider port FireWire IEEE 1394 Combo drive DVD / CD-RW, and a third port USB 2.0. Such a “spread” the USB ports on the hull is very convenient: it avoids meeting heaps of wires in one place, and also allows you to connect devices with a non-standard connector or USB device, the case which directly bears the port, USB. On the rear panel are the same: port to connect the power cord, port fax modem, RJ-11 port built-in network adapter 100 MBitnogo 3C905C-TX Fast Ethernet RJ-45, battery compartment and output S-Video.

By connecting your Acer AS07B71 battery laptop to your home computer using a direct Ethernet connection, check the speed of the integrated network solution. Average speed – 5 MB / sec. Accidentally discovered by a wireless WiFi connection, apparently, is making some of the neighboring apartment. Or double effect, Quad antenna in the original “Dual Quad Band Antenna” on admission.

On the keyboard LG LM50a work nicely, she combines the two main things: soft pressing and a clear fixation click of a button. Next to the Power management is a volume control. On the high value it almost did not take off really do not have enough power. The top row of function keys on past his primary purpose, includes the following control buttons are activated by clamping the keys Fn: three keys application quick-launch buttons enable hibernation, standby, on-off button radio, Acer AS09a61 battery, WiFi, Key Info, which leads us straight into the “System Information” Windows.

HP in conjunction with the official announcement of AMD Llano has expanded its line of consumer and business laptops with 11 new models such as Acer Aspire 3000 battery that use the latest AMD processors the accelerated series, A4, A6 and A8, providing good performance at an attractive price. AMD chips Serie A united and powerful core x86 discrete graphics on a single chip.

Entertainment series HP Pavilion dv consists of three Apple a1079 models, the 14-inch Pavilion dv4, 15,6-inch dv6 and 17-inch dv7. They offer support for features such as HP CoolSense, HP True Vision HD webcam and HP Beats Audio. HP says that the graphics performance of decision-making more than twice the integrated graphics, the previous generation. HP Pavilion dv6 cost starts at $ 600, and the Pavilion dv7 – from $ 700.

More budget series HP Pavilion g calculated on the average user, and daily use. It also consists of three Apple a1189 models – the 14-inch Pavilion g4 with an initial cost of $ 450, 15.6-inch g6 with an initial $ 500 and 17-inch g7 with an initial cost of $ 500. Available devices should be available in the U.S. in July. The cost of HP ProBook b series starts at $ 680, HP ProBook series of s – from $ 520.

Notebook Series HP ProBook outwardly generally repeat the earlier decisions based on the AMD and Intel. As a 14-inch ProBook 4435s and 4436s, and 15.6-inch 4535s may be based on a 2-core processors, A4-3300M (1,9 GHz and 2.5 GHz – Turbo Core) and above, and at 4 Nuclear-up to A6-3400M (1,4 GHz and 2.3 GHz – Turbo Core). Devices can have drives of 250 GB to 750 GB, equipped with support for 3G. Laptops Apple ibook g4 battery are endowed with robust aluminum case, painted, multi-touch panel and an integrated HD-webcam.

Consumer macbook pro 17 battery notebook series HP Pavilion dv-and g-and business-solutions series ProBooks can also be equipped with discrete graphics in addition to the integrated, which may be included in the mode of AMD Dual Graphics to use the integrated GPU in games and off while working less demanding applications. AMD Image Enhance Technology and AMD Perfect Picture HD are designed to dynamically improve color and contrast, realistic-color display, making video more smooth and rich.