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  • Maintenance of Digital Camera Battery

    Posted on March 5th, 2010 ecsem3 No comments

    For most digital cameras friends, the camera’s power consumption can make headache. Even if there is sufficient battery, also because you would replace the latitude d510 battery ,and it can cause some inconvenience to some extent. Therefore, we must pay attention to proper use and maintenance measures in charging and using the battery . The following describes a few maintenance of batteries on the skills .

    When buying a new battery or the battery not been used for several months ,after the full release several times over, the inspiron e1505 battery can be fully activated , or battery life will be shorter in the future. Lithium battery charging hours must be more than 6 hours, Ni-MH battery must be more than 14 hours, the only way can ensure that the battery life.

    If there is residual battery power ,you try not to repeat charging to ensure battery life. Even the digital camera displayed the battery has been used up, in fact, the battery is still a little residual power. If you do not run out ,but repeatedly or charge the rechargeable battery , then the battery usage time will be gradually shortened. To make use of time to restore to the original, then you would have repeated several times to recharge completely exhausted. after fully discharged,recharge the xps m1330 battery on a regular basis , the easiest way is to use conditioning charger or pulse charger.

    We also can not ignore the preservation methods for the battery . If you do not use the camera a long time, then you must remove the battery from the camera and placed in cold dry places to save, and it could well increase the battery life, for the lithium vostro 1500 battery , This approach is essential. On the other hand,it is what we should not be overlooked, usually a lot of charging problems are that battery contact points are not clean, so we should regularly use a cotton swab dipped in alcohol to wipe clean the battery contacts.

    Finally, if conditions permit, then I hope you to use the machine itself comeing with AC adapter regulated power supply, most digital cameras are equipped with its own AC adapter regulated power supply adapter. we should precede that clear external AC adapter is a 110V power supply voltage, or 220V voltage, if the plug shall not be treated, it is easy to burn out the power,the latitude d830 battery,and even burned the camera. Much less not to use other regulated power supply adapter freely, because the various cameras re produced by the different camera manufacturers ,so there are differences in specifications in the adapter voltage, current and other aspects, use the wrong adapter regulated power supply freely, it can also cause these adverse consequences .

  • Deference between Netbooks and Laptops

    Posted on November 2nd, 2009 admin No comments

    notebook-cool-pad1

    Recently,the market is fulfilled with small, low-cost netbooks,which are called as mini-laptops and popular by many people.Even the current economy pressures rise and worldwide economy in gloomy condition, why they are so popular as well as laptops? Maybe their merits as follows:

    • the shape

    First, from the appearance, although it looks very similar like ordinary notebook , it will have a certain difference in screen size and battery. Netbooks are mostly 7-10.2 inch screen, while the average laptops are basically more than 10.2 inch. In addition,netbooks accentuate portability mostly small and thin , while brilliant colors.

    • the Configuration and Performance

    In a sort of the configuration and performance , netbooks basically used Intel Atom processor, emphasizing low power consumption and long battery life and performance to meet the basic needs of the Internet-based, while the average notebook holds a more robust multimedia performance. In addition ,netbooks have a greater emphasis on the ability of searching internet wireless, hard disk size is not as large as regular notebooks.

    • the use

    Netbooks are mainly internet-based, they can support making friends online, web surfing, listening to music, view photos, watch streaming media, instant messaging, e-mail, basic network games.Meanwhile, the ordinary laptops, you can install the high-level and complex software, download, store, play CD / DVD,take video conference, open, edit large files and do multi-tasking, as well as the rich experience of more games needed to be installed and the longer last of battery.

    • the price

    Currently on the market, netbook’s range of price is 1500-3999 yuan, while the traditional notebook is positioned according to the manufacturer and user’s demands, among 3,000 yuan in the ten thousand dollars or even more high.

    Because netbooks are designed for ultraportability, they strive for both lower battery weight and longer battery life. Often, lower power consumption has meant reduced performance¡ªa big no-no for traditional laptop marketing. But for netbooks, which strip down the computer¡¯s power needs with lightweight operating systems and software, performance trade-offs aren¡¯t a significant problem. By including energy-efficient components, such as highly efficient processors and solid-state drives, netbooks can make the most of smaller batteries.

  • Dell inspiron E1505 Laptop Battery

    Posted on October 10th, 2009 admin No comments
  • Battery Type : Li-ion
  • Voltage : 11.1V
  • Capacity : 6600mAh
  • Color : Black
  • Dimension : 205*72*22.7mm
  • Net Weight : 542g
  • This Li-Ion high capacity Inspiron E1505 battery provides more capacity than the standard system battery.Lower price, Up to 30% off! Longer battery life, no memory effect. Dell Inspiron E1505 laptop battery can supply lasting energy for your Inspiron E1505 Notebook Models. Dell Inspiron E1505 battery have passed stringent quality assurance procedures and achieve international standards CE, UL Listed, and/or ISO9001/9002 certification.100% compacompatible with original Inspiron 6400 laptop.

  • Japan or Korea made grade A li-ion cells.
  • reliable power means dependable performance and li-ion battery have no memory effect.
  • average run time:3-4 hours(minimum), recharge time : 2-3 hour(s).
  • strict lithium-ion battery circuit management.
  • over 500 full discharge/charge times.
  • rechargeable Dell Inspiron E1505 Laptop Batteries , brand new, no refurbished, 100% compatible.
  • 100% compatible with original equipment manufacturer Inspiron 6400.
  • manufactured by high-capacity power products and built-in rechargeable battery protection circuit.
  • lithium ion technology gives Dell Inspiron E1505 Battery a long life, and light weight.
  • Dell Inspiron E1505 Battery will be compatible with:DELL D6400, DELL GD761, DELL KD476.
  • Dell Inspiron E1505 Battery will fit CODE:

    Dell GD761,KD476,

    Warranty: Brand New, 1 Year Warranty, 30 Days Money Back.

  • Our Checkout Process is 100% secure. Your order information is encrypted and transmitted through our secure (SSL) server technology.
  • Quality Assurance, 100% quality control assurance. Our Dell laptop battery have passed strict quality assurance procedures to achieve international standards such as CE, UL Listed, and/or ISO9001/9002 certification.
  • Shopping from us is safe and secure. We do not sell, rent or share information of our customers with other parties. Aubatteries.com.au guarantee your Dell Inspiron E1505 Batteries transaction will be 100% safe.
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  • Packages arrive safely. For shipment, we take an extra step to protect your packages exclusively. The tracking system protects your shipment from being “hijacked”. You can log in anytime, day or night, to track your order in real time.
  • laptop li-ion battery separator be more efficient

    Posted on September 30th, 2009 admin No comments

    As international oil prices high,adapter for laptop more and more car drivers to take into account in determining the fuel economy, which directly led to a worldwide market share of hybrid vehicles rose. Expected that by 2012, U.S. sales of hybrid cars will be increased to 100 million. In order to meet the demanding needs of hybrid cars, laptop battery is key components – membranes must be improved, improve energy efficiency, thus providing more power for this vehicle, the courage to deal with the challenges of the world’s energy shortages.

    The important role of the diaphragm is small

    Due to the high energy density lithium batteries(xps m1330 battery,latitude d830 battery), long cycle life, light weight, small size and other characteristics, but also has a safe, reliable and can quickly charge and discharge, etc., to become the new power technology in recent years, the research hotspot in the field of high-energy and high-power reserved popular. In the lithium battery structure, the inner membrane is a key component of the. Diaphragm made of plastic film is able to isolate the battery positive and negative, in order to prevent short circuit; also be in the battery overheating, through closed-cell function to block cell in the current conduction.

    Chemical’s chief polymer scientist said Bai Peide, lithium battery separator battery costs account for the cost of a / 3. Membrane determines the performance of the batteries(gd761,kd476) interface structure, resistance and so on, a direct impact on the battery capacity, cycle performance, and security features such as, high-performance membrane in improving overall performance of the battery has an important role. At present 60% to 70% of the membrane market, mainly in wet bi-oriented process, because the wet, bi-lateral vertical stretch more evenly balanced. It is mainly used for high-end diaphragm wet, dry method has been applied in the low-end products.

    A huge global market volume

    Global Li-ion battery production in the past 15 to 17 years has maintained an average of 10% to 20% growth rate from 2001 onwards, the average annual growth rate was as high as 40%. Rapidly growing lithium battery market, in addition to watches, and other one-time button-type batteries,inspiron b120 battery and inspiron b130 battery, as well as secondary rechargeable lithium-ion batteries. In addition to the current lithium ion batteries are widely used in daily well-known mobile phones, notebook computers and MP3 and other digital electronic products, in electric cars, electric bicycles and some other high-power batteries have also been started.

    At present, countries are scrambling to develop electric cars, hybrid cars will need batteries to provide power, as a pure electric vehicles matching power supply, lithium-ion power supply for its outstanding performance, is becoming the core of the power type. As the hybrid line with today’s national energy development needs of a large environmental protection, consumption growth must be greater than 20%. Reason to believe that lithium batteries will eventually occupy the dominant position of secondary battery market, as its key components, the lithium battery separator huge market capacity.

    Personality development to improve energy efficiency

    Battery separator is mainly the development of lithium-ion batteries(inspiron e1705 battery,inspiron e1505 battery) with the evolving needs and continue to develop, from the volume point of view, lithium-ion batteries are moving in the small and large two distinct direction. In some, such as mobile phones, digital cameras and other electronic products, in order to meet the beautiful, easy to carry the demand on the battery batteries battery factory has been very small. In pursuit of high energy density, in the small size of the electrode can accommodate more material, the battery manufacturers want to divide the thickness of the thinner the better. Smaller diaphragm is a challenge because of the need to do a thin membrane, but to be able to maintain the original battery capacity, cycle performance, and security features, and greater power, the design easier.

    By contrast, in electric bicycles, electric vehicles and electric tools used by power batteries, in order to obtain high-capacity, high-power, usually a battery need to use dozens or even hundreds of batteries to concatenation. Because lithium batteries have the potential explosion hazard, the safety diaphragm is important. Due to become bigger and bigger, technically demanding more efficient and reduce greenhouse gas emissions, power stronger.

    Bai Peide convinced, lithium battery separator according to the different needs of different customers to develop targeted products, which divide the future trends. Although the divide is mainly single-market products, but Exxon Mobil has been able to put different materials on different membrane layers, each layer with different formulations vgp-bps2c battery of solvents and raw materials to multi-layer co-extruded to produce hot-melt thickness and diameter of hair, similar to divide and thus produce different properties of products, Bai Peide predict the future trend of multi-layer membrane is also obvious.

    Still need to speed up the development of China

    According to the Irish market research firm recently issued a lithium battery market forecasts show that China’s current production of lithium batteries as the world’s largest. In the global lithium battery production, the Chinese mainland accounted for 16.9%, China Taiwan region accounted for 6.9%. According to China’s Power Industry Association of Chemistry and Physics, Statistics, 2007 China Li-ion rechargeable battery production reached 1 billion.Affected by China’s lithium-ion battery separator market-oriented development has also begun to take shape, now showing a very good momentum of development. In accordance with the battery output of 1 billion is estimated that consumption of each diaphragm 300 million ~ 500 million square meters between the market value of 10 billion to 1.5 billion.

    However, China’s research and development of lithium-ion battery separator got a late start, lithium-ion thinkpad t60 battery separator still mainly rely on imports, leading to the market price remains high. At present, only Japan, the United States and a few countries have a lithium battery separator production technology and the corresponding large-scale industry. China’s domestic market, over 80% of diaphragm were the United States, Japan and the occupation of imported products, domestic divide is mainly in the middle and low-end markets.

    The future, China needs to strengthen the industry, academia, research inputs, to develop research achievements with independent intellectual property rights, breaking the Japanes and American enterprises in the membrane industry, technological monopoly; the other hand, enterprises and research institutes should strengthen cooperation, speed up the results The industrialization process of transformation.

  • Inspiron E1505 Dead Battery problem

    Posted on September 16th, 2009 admin No comments

    I bought the Dell Inspiron E1505 about two years ago. Like so many of the others who bought this laptop, my Type gd761 , KD476 , 85Wh battery died just after the one year mark. The problem started when the battery light began flashing. The battery has a usage button on it which indicated that the battery was fully charged, however, every time I put the battery in the laptop, the light started to flash again. I found dozens of blogs and tech sites like this one where Dell users have voiced the same issues with this computer and its battery. (Just enter, “Problem with Dell Inspiron E1505 Battery” into your browser to see what I mean) All Dell will offer as a solution is to tell me to buy a new replacement battery.So I bought a new one on http://laptopsbattery.us/dell-inspiron-e1505-battery.htm

    This battery started off incredibly strong, kept my Core2Duo Inspiron E1505 going for a solid 4-5 hours per charge, enough time for me not to need the charger as I studied on campus.

    This Dell Inspiron E1505 battery–9 Cell Replacement Battery features lithium technology, which ensures maximum battery life and maximum power. It also features no memory effect that lets you recharge partially drained batteries without reducing performance.

    The overall performance of this laptop was marginal at best, despite what anyone else thinks of it. My older Inspiron 1100 is a much better laptop and has never had any issues with it’s battery. I was enticed to buy the more expensive battery when I got the E1505 because the Dell wen site said it would last longer. Obviously, that is not true. Dell Customer Service will not take ownership of the problem that I am many others have had with this laptop. I’ve bought five computers from Dell in the past seven years or so. The E1505 was the latest purchase. My older Dell computers all work much better than the E1505. Personally, the E1505 is a useless piece of junk to me, if I cannot use it as a portable computer. Instead, it remains landlocked to a wall outlet if I want to use it.every year for a new inspiron E1505 battery. I either expected my money back, a free battery or a comparable replacement for the E1505, any of which I know I will never receive from Dell. They don’t really listen to their customers. I used to be a big Dell supporter, but not any longer. Dell sucks as far as i am concerned! My next system will come from HP. I won’t buy anymore Dell products and I’d suggest anyone else to avoid buying a Dell computer unless you also want a headache, or you enjoy being ignored by Dell when you have a problem with their products.

  • China lithium batteries lose a fight to defend a patent bureau

    Posted on September 9th, 2009 admin No comments

    China lithium batteries lose a fight to defend a patent bureau

    In the first half of this year, this newspaper since 3114, the four successive interest of the University of Texas and its commercial mandate Hydro Quebec, Canada, Phostech alleges that the U.S. battery maker A123 (GEM), Inc., Vaillant (Valence) Company Infringement lithium ion phosphate patent dispute. This series of reports have caused widespread concern outside the industry. Today, lithium ion phosphate laptop batteries on the topic of the patent once again affects the electric car industry’s nerves, but the protagonist of the incident replaced by China.

    On lithium ion phosphate in North America, playing a flurry of patent lawsuits when a lithium ion phosphate battery patents to defend the war broke out in China. DVD patent pool

    To avoid recurrence of this tragedy, our country more than the battery(GD761, KD476 ) companies and research institutions are positive actions, to collect evidence to prove that Hydro Quebec and the French research center in China last year, the application of phosphorus acid, lithium ion-layering carbon technology patents (now an exclusive license to the Canadian Phostech company) is invalid. However, the present situation, the Chinese side want to win, extremely difficult.
    The success of foreign companies in China apply for patents

    layering of carbon this year, China’s electric cars and motive power batteries forum is particularly high. In almost every forum, can see the shadow of Canada Phostech company representatives.

    Not long ago, the fourth South China Lithium Power (International) high-level Technical Forum held in Shenzhen. Made a special trip from Canada came to participate in the forum Phostech Rice, CEO? Toston smiling. After the introduction of products and technology, Toston answered live audience on the patent question. He said: “In the United States, the Tribunal intends to recess for some time to continue to hear from companies such as our A123 lithium ion phosphate battery patent dispute. Last December, the European Patent Office rejected the Phostech the company’s lithium ion phosphate battery patent application(Dell inspiron E1505 battery ,inspiron 1501 battery) . We intend to continue to apply for patents, is expected to be approved in 2010. In addition, in Japan, we are also actively apply for a patent. ”

    Toston Phostech talked about companies in the United States, Japan and Europe application for a patent case, but did not mention China, and I wonder if the wish to avoid. According to report, in 1999, the French scientific research center, Professor Michael? Oman and Germany invented the carbon-layering technology, solves the conductivity of lithium ion phosphate materials, poor problem. Subsequently, from Hydro Quebec and the French Scientific Research Center have applied for the patent. In 2008, the two institutions in the Chinese patent application is approved, the patent has been the exclusive right to use license to the Canadian Phostech company. Seize the high ground in the patent

    after, Phostech actively explore the Chinese market. Currently, the company has opened an office in Shanghai. At the same time, its high-level frequent appearances in China, and actively promote the company’s lithium ion phosphate batteries and materials.

    two patents can not by pass

    Chinese Academy of Engineering, Li-Quan Chen told reporters, in the lithium ion phosphate batteries,dell battery inspiron e1505 and material field, there are two core technology patents can not be bypass, one of which is the layering of carbon technology patents, and the other is the carbon-thermal reduction technology patents. The former has applications in China, the Canadian company has the exclusive right to use Phostech; the latter owned by the United States Viagra can be company, has yet to apply for a patent in China. However, Viagra can be company has set up two companies in Suzhou — Vaillant Technology Co., Ltd., Takeyasu Energy Limited, are responsible for the production of lithium ion phosphate materials, and battery production(dell GD761, KD476). In order to seize the Chinese market, Viagra can be company does not rule out the patent on the trivial.

    Academician Li-Quan Chen also told this reporter in a surprising thing: It turned out that Viagra can be company owned by the carbon thermal reduction technology patents, is entirely his students — Dong masterpiece.

    2000, the Dong switched from a Canadian company to enter the United States Vaillant, serving as a senior research fellow. Prior to that, he has been the French National Research Center for Condensed Matter Physics Institute of Chemistry of Bordeaux and received a doctorate and post-doctoral study in the United States. In Vaillant’s work, Dong fully demonstrated the Chinese people industrious, intelligent character in just six years, he helped Vaillant companies in 28 countries around the world applied for the patent materials, lithium ion phosphate (Dong is the inventor , the property Vaillant companies).

    However, things are unpredictable Dong was perhaps never imagined that today, these patents would become the Chinese battery (dell xps m1330 battery,xps m1730 battery)enterprises to enter the field of lithium ion phosphate battery barrier.

    “At that time, I can think of their own materials, lithium ion phosphate formulations and preparation methods are written out and apply for a patent. Some of the patent, Viagra can be company already has a corresponding time technology, and others are under development, there are simply not begun to study. This series of patents is very tight, almost covering the manufacturing aspects of lithium ion phosphate battery is indeed hard to break. “talking about past events, Dong so right , told reporters.

    want the patent is invalid, the Chinese side little chance of toppling

    “in the lithium ion phosphate batteries and materials, China has absolutely can not be called art. There are few enterprises that Patent no problem, it is nonsense, and there are many complex issues to be resolved. If we say that, for the University of Texas and the A123 between other organizations such as lithium ion phosphate patent dispute case, we are somewhat indifferent manner of taste, then this a company in China with access to packet Phostech deposited carbon technology patents, as well as companies such as Viagra can seize the Chinese market to accelerate the pace of the patent problem has become very realistic placed in front of us, not be evaded. “a company official said the battery.

    Is aware of this, these batteries(dell inspiron b120 battery,inspiron b130 battery) before businesses and relevant research institutions together to gather evidence, look forward to tear down barriers to multinational patents.

    State Intellectual Property Office a staff surnamed Wang told reporters, “Patent Law” Article 22 clearly provides that a patent application at least have novelty, creativity and practicality, and no other substantive issues, in order to be authorized. By the same token, if you want the patent invalid, the State Intellectual Property Office shall review committee to pursue the invalid request has been authorized by the patent to prove there is no novelty, inventiveness or usefulness. If rejected, you need to bring an action through the legal channels to resolve.

    The staff member also said that the best means of proof is to find a one or more previously public documents, and to compare the patent claims, xps m1330 battery,if the overlap, you can prove that the patent the lack of novelty. Corporate sources, and now they have found an open literature, but the arguments are not particularly strong. Once the proceedings, the odds are not great.

    Chinese Academy of Sciences Institute of Physics, doctoral tutor Huang Xue-Jie said, after the U.S. Japan’s NTT paid 30 million yuan (equivalent to RMB) settlement, the only solution of the lithium ion phosphate material patent disputes. Many enterprises in Taiwan is to spend money to buy other companies to Phostech the right to use the patent. “If in the end, China and Japan, companies have to embark on the road to spend money on patent licensing, which is China’s ion phosphate lithium battery manufacturers would be a bad news, but also a sad thing.”

  • Dell XPS M1330 Review

    Posted on September 3rd, 2009 admin No comments

    The Dell XPS M1330 is designed for those that want power on the go. If you’re also fashion conscious and like to standout in a crowd, the looks of the XPS M1330 will help you in that area too. Sleek design coupled with a portable form factor and powerful components come together to make for a compelling notebook.

    Build and Design

    Our pre-production XPS M1330 as equipped:

  • 13.3-inch WXGA screen with LED backlight
  • “Crimson” red paint (also available in “Tuxedo” black or “Pearl” white)
  • 2.0GHz Core 2 Duo T7300 processor, Santa Rosa chipset (up to 2.4GHz available)
  • 2GB DDR2-667 SDRAM (up to 4GB DDR2 SDRAM available)
  • 160GB 5400 RPM SATA HDD (32GB SSD drive available)
  • Slot-loading dual-layer DVD±RW drive
  • 128MB NVIDIA GeForce Go 8400M GS
  • WWAN option for Verizon
  • Ethernet, 802.11a/g/n (Intel 4965), Bluetooth option
  • Integrated VGA webcam
  • HDMI, VGA, 1394, two USB 2.0 ports, integrated media reader (MS, SD, xD), fingerprint reader
  • Media Center remote located in ExpressCard slot
  • Windows Vista Home Premium
  • Dimensions 12.5″ x 9.4″ x 0.87″ – 1.33″
  • Weight starts at 4 pounds with 6-cell battery(xps m1330 battery)
  • Unlike the bulky, unattractive 12-inch Dell XPS m1210 with li-ion xps M1210 battery , the M1330 has clearly been built with an emphasis on good looks and clean lines, ditching the earlier model’s cumbersome, rotating Web cam and thick chassis. The system is slightly wedge shaped, going from 0.87 inch in the front to 1.3 inches in the rear. At less than four pounds, it’s one of the lightest 13-inch laptops we’ve seen–nearly a full pound lighter than the popular yet hefty 13-inch Apple MacBook, and a touch lighter than the 12-inch XPS M1210 with powerful dell xps m1210 battery .

    The keyboard tray is brushed silver with black accents, while the lid is available in black, white, or red. Our review unit had the matte-red finish (Dell calls it Crimson Red), which looks great, but more color options (as with the newly revamped Inspiron line of laptops) would have been welcome.

    Dell manages to squeeze a good number of extras onto the keyboard tray, including touch-sensitive controls for volume and media playback, an eject button for the slot-loading DVD drive, and a quick-launch button for Dell’s proprietary Media Direct software. The biggest drawback we found with the M1330’s design was the tiny, 2.75-inch touchpad, which we found to be particularly frustrating given the fact that there’s plenty of room on the wrist rest for a bigger pad.

    You will love:Dell XPS M1330 has 2 megapixel camera sensor resolution which is higher in comparison with similar priced notebooks. Dell XPS M1330 has only 4-pound weight,9 cells dell xps M1330 battery. Price comes upto $715 this notebook has great features for the money.

    You will hate:Screen size 13.3-inch is somewhat smaller than some similarly priced notebooks. This notebook has a modest 2.0 GHz CPU speed. Graphics-intensive applications will certainly hinder performance on a system that relies on relies shared video RAM.

    Summary

    There are very few 13-inch laptops on the market that bring the caliber of hardware and performance of the Dell XPS M1330. We’re getting a glimpse of the future in ultraportable power with the Dell XPS M1330 battery .Its battery is as good as inspiron e1505 battery . Game-capable graphics, blazing processor speed, and a pile of RAM all packed into a lovely chassis that’s as comfortable to carry as a hardback airport romance novel. Despite the extra cash you’ll shell out, we think the Dell XPS M1330 is the clear choice over other cheaper, less powerful notebooks.

  • Dell Latitude D820 D830 Notebook Computer

    Posted on September 3rd, 2009 admin No comments

    The Dell Latitude D830 is the successor to the Latitude D820, a mid sized business notebook with a 15.4″ screen and the new Santa Rosa platform. Weighing in at nearly six pounds it tips the scales at the upper end of the thin-and-light category. Pricing as of this writing starts at $899, and like most Dell notebooks there are plenty of customization options available.

    Features Overview

    My Latitude D820 was configured with the following major options:

  • Core Duo T2400 CPU @ 1.83 GHz, 667MHz front side bus, 2MB L2 cache
  • 15.4″ WSXGA+ (1680×1050) display
  • 1024MB DDR2-667 RAM (2×512MB DIMMS)
  • NVIDIA Quadro NVS 120 graphics solution with 512MB TurboCache
  • 60GB hard disk @ 7200RPM
  • 8x CD-RW/DVD RW dual layer drive
  • Dell Wireless 1390 WLAN (802.11b/g 54Mbps) Mini Card (Broadcom)
  • Bluetooth radio (Toshiba stack)
  • 6-Cell/56 WHr Primary Battery (latitude d820 battery)
  • Microsoft Windows XP Home Edition
  • 3-year Economy Plan warranty
  • Weight: 6.17lbs
  • Dimensions 1.39 in (H) x 14.21 in (W) 10.34 in (D)
  • My Latitude D830 is configured as such:

  • Intel Core 2 Duo T7300, 2.00GHz
  • 15.4 inch Wide Screen WUXGA LCD
  • 2.0GB, DDR2-667 SDRAM, 2 DIMM
  • 256MB NVIDIA Quadro NVS 140M
  • 80GB Hard Drive 9.5MM 7200RPM
  • 90W AC Adapter
  • 8X DVD+/-RW w/ Roxio Creator and Cyberlink
  • Intel 4965 WLAN (802.11a/g/n)
  • 9-Cell/85 WHr Primary Battery(latitude d830 battery)
  • 6-Cell/48-WHr Modular Battery
  • Vista Business, with media English
  • Dimensions are 1.39″ x 14.2″ x 10.34″
  • Weight is 6.5lbs with 9-cell dell d830 battery and optical drive
  • Build & Design

    The D820 has a magnesium alloy body that is supposed to protect the laptop from flexing and the wear-and-tear of corporate travel and use. The whole underside and lid of the laptop feel like metal but, unfortunately, the wrist rests are plastic. Thus, there is some amount of flex when handling that area but by no means is the amount of flex disturbing. The rest of the notebook, however, is very rigid.

    Out of the box the screen hinges are quite stiff. In fact, to fully open the screen I have to hold down keyboard half of the notebook. Obviously these hinges will deteriorate over time but they look to be well-made. The screen locks down with two clasps which are retracted by a latch. These are also metal but there is some play in these clasps when the notebook is open. Some laptops these days (like the MacBook) have a closing mechanism which completely eschews these latches and clasps for a magnetic closure. That would have been a nice if unessential feature to see in the D820.

    The screen has a high degree of torsional rigidity thanks to the magnesium alloy panel backing it resulting in little flex and no screen distortion when twisting the screen frame. When I apply pressure to the lid of the notebook no ripples appear, a common occurrence on poorer built machines. From my brief experience with an dell e1505 battery with powerful inspiron e1505 battery , I have to say that the IBM felt slightly more solid (I would feel more comfortable throwing that notebook around) but the Dell is definitely close behind.

    Processor & Graphics Performance

    My D820 came with a 1.83GHz Core Duo processor and by all measures it’s a speed demon. I choose two 512MB sticks (total 1GB) to take advantage of dual channel memory capability which in theory doubles the bandwidth of the pipe from the RAM to the memory controller. I also chose the 667MHz RAM over the standard 533MHz. I wasn’t sure of the utility of this faster memory but my logic was that the Core Duo has a 667MHz front side bus and I would need the RAM to match that speed if I were to maximize performance. Startup times on my D820 are fast but not as fast as I expected. The machine takes 28.34 seconds to reach the login screen from a cold boot. Thus far the laptop has been snappy in every day usage such as internet browsing and word processing as well as during benchmarking. Applications load quickly as do Control Panel and My Computer and there’s a good degree of responsiveness to all user inputs. I have not had a single hang, lockup, freeze, or BSOD so far. I haven’t installed any games on this machine so I cannot attest to the performance of the Quadro NVS 120 graphics solution, the workstation version of NVIDIA’s consumer GeForce 7400 graphics solution. Do not expect stellar game performance out this card however my D820 received 670 3DMarks on the 3DMark06 benchmark.

    Battery

    The latitude D820 with the standard 6-cell dell latitude d820 battery. The battery was optional for an additional $20 but I didn’t think the added weight was worth it.Dell latitude d830 battery have 9 cells,longer battery life. The battery takes about two hours to charge absolutely fully (though the meter reaches 100% before that time). Dell touts something they call ExpressCharge which optimizes the time to charge the battery. This lets you charge the battery to 80% in only one hour for time-critical situations.

    Running a stress test which maxes out the CPU, GPU, and screen brightness, I measured a battery life of 2 hours and 14 minutes. This represents the absolute lower limit.I feel dell gd761 , kd476 are better than it. Under normal usage like word processing, web browsing, and a little light movie-watching you can expect times of about 4 hours or possibly even longer.

    The battery features a thoughtful external indicator that consists of five LEDs to indicate the approximate charge of the pack. This allows you to determine how much battery you have left without booting the notebook.

    Conclusion

    In summary, the Latitude D820 is a very nice choice for the desk jockey professional or student. This machine, with its 15.4″ widescreen, is not meant for world travel but for flexibility, productivity, and a little bit of portability. At a pinch it can be used on a plane or on a lap but, for the most part, I would not travel extensively with the D820. For its form factor, however, I do not think you will find a better balance between portability and build quality than the Latitude D820.These are new laptop computer,and their will be a hot as dell inspiron e1505 battery . I would wholeheartedly recommend this notebook to anyone looking for an effective tool to get some serious work done.