Research has brought about a variety of battery chemistries, each offering distinct advantages but none providing a fully satisfactory solution. With today’s variety of battery types, better choices can be made to suit specific user applications. This paper talks about the recommended battery chemistry for cell phones and two-way radios in terms of energy density, durability and price.

What’s the best battery for cell phones?

Early cell phones were powered with nickel-based batteries but most newer phones are now equipped with lithium-ion. This chemistry is lightweight, offers high energy density and lasts long enough to span the typical life of the product. Lithium-ion contains no toxic metals.
To obtain thin geometry, some cell phone manufacturers switched to lithium-ion-polymer.

This satisfied consumer requests for slim designs. In the meantime, technological advancements also made low profile lithium-ion possible. lithium-ion packs are now available in 3 mm, a profile that suits most designs. lithium-ion has the advantage of lower manufacturing cost, better performance and longer cycle life than the polymer version.

Lithium-ion is a low maintenance battery(dell inspiron 1520 battery apple a1185). No periodic discharge is needed and charging can be done at random. A random charge means that the battery does not need to be fully depleted before recharge. In fact, it is better to recharge before the battery gets too low. Full discharges put an unnecessary strain on the battery. A recharge on a partially charged battery does not cause memory because there is none.

Charging lithium-ion is simpler and cleaner than nickel-based batteries but the chargers require tighter tolerances. lithium-ion cannot absorb overcharge and no trickle charge is applied on full charge. This allows lithium-ion to be kept in the chargers until used. Some chargers apply a topping charge every week or so to replenish the capacity lost through self-discharge while the battery(sony vgp-bpl8 battery) sits idle in the charger. Repeated insertion into the charger or cradle does not damage the battery though overcharge. If the battery is full, no charge is applied. The battery voltage determines the need to charge.

On the negative side, lithium?ion gradually loses charge acceptance as part of aging, even if not used. lithium?ion batteries should not be stored for long periods but be rotated like perishable food. The buyer should be aware of the manufacturing date when purchasing a replacement battery. Aging affects battery chemistries at different degrees.

Counterfeit cell phone batteries (clone batteries)

In the search for low-cost battery replacements, consumers may inadvertently purchase clone cell phone batteries that do not include an approved protection circuit. Lithium-ion packs require a protection circuit to shut off the power source if the charger malfunctions and keep on charging, or if the pack is put under undue stress (electrical short). Overheating and ‘venting with flame’ can be the result of such strain. (See photos of an exploded cell phone with clone battery on charge.)

Cell phone manufacturers strongly advise customers to replace the battery(sony vgp-bpl5a  dell inspiron 6400 battery) with an approved brand. Failing to do so may void the warranty. Counterfeit cell phone batteries have become visible since the beginning of 2003 when the world was being flooded with cheap replacement batteries from Asia.

Cell phone manufacturers act out of genuine concern for safety rather than using scare tactics to persuade customers to buy their own accessories. They do not object to third party suppliers in offering batteries and chargers as long as the products are well built, safe and functioning. The buyer can often not distinguish between an original and a counterfeit battery(vgp-bps9 sony vgp-bps9 battery) because the label may appear bona fide.

Caution should also be exercised in purchasing counterfeit chargers. Some units do not terminate the battery correctly and rely on the battery’s internal protection circuit to cut off the power when fully charged. Precise full-charge termination and a working protection circuit are needed for the safe use of the lithium-ion battery.

What’s the best battery for two-way radios?

Most two-way radios use nickel-cadmium. These batteries are durable and forgiving if abused. But nickel-cadmium batteries have only moderate energy density and are environmentally unfriendly. Environmental agencies have been discouraging its use, especially in Europe. The recommended alternative is nickel-metal-hydride, a battery(HP Pavilion DM3 battery) that has higher energy density and contains no toxic metals. nickel-metal-hydride has been tested in two-way radios for a number of years but the results are mixed. Shorter than expected service life is the major drawback.

For two-way radios, nickel-metal-hydride has a cycle life, which is half that of standard nickel-cadmium. nickel-metal-hydride prefers a moderate discharge current of 0.5C or less. A two-way radio, on the other hand, draws a discharge current of about 1.5A when transmitting at 4W of power. High discharge loads and sharp pulse currents shorten battery life.

To compare the longevity of nickel-metal-hydride under different load condition, a test was carried out in which batteries of the same type were discharged with a DC and digital load. In both tests, the batteries were discharged to 1.04 volts per cell. The DC load was a steady 500mA; the digital load simulated the Global System for Mobile Communications (GSM) at 1.65 ampere peak for 12 ms every 100 ms with 270 mA standby. (Note that the GSM pulse for voice is about 550 ms every 4.5 ms).

With the DC discharge, nickel-metal-hydride wore out gradually, providing an above average service life. At 700 cycles, the battery(hp elitebook 2530p battery) still provided 80% capacity. By contrast, the same battery type faded more rapidly with a digital discharge and the 80% capacity threshold was reached after only 300 cycles. This phenomenon indicates that the kinetic characteristics for nickel-metal-hydride deteriorate more rapidly with a digital than analog load. Although the test was simulating a GSM cell phone, Tetra and other digital two-way radios have similar loading.

Let’s briefly compare the characteristics of nickel-cadmium and nickel-metal-hydride. nickel-cadmium has the advantage of maintaining steady high capacity and low internal resistance through most of its service life. nickel-metal-hydride, on the other hand, starts with good capacity and low internal resistance but the resistance increases after a few hundred cycles, causing the voltage to drop on a load. Even though the energy may still be present, the battery(vgp-bps8) cannot deliver the high current during transmit and the message cuts off. The radio becomes unreliable.

Nickel-based batteries are high in maintenance. Periodic discharge cycles are needed to prevent crystalline formation on the cell plates, also known as memory. nickel-cadmium is more receptive to memory than nickel-metal-hydride because both nickel and cadmium plates are affected by memory.

Nickel-cadmium should be exercised once ever 1 to 2 months, whereas nickel-metal-hydride can get by with a deliberate full discharge once every 3 months. Without proper maintenance, the advantage of nickel-cadmium over nickel-metal-hydride in terms of cycle life cannot be realized.

Lithium-ion has been tested for two-way radios and the results are positive. Substituting lithium-ion with nickel-based will require chargers specifically suited for this chemistry. While nickel-cadmium and nickel-metal-hydride can often share the same charger, lithium-ion uses a different charge algorithm. There is also a cost premium for lithium-ion. Future two-way radios will undoubtedly be fitted with lithium-ion.

you’ll choose from brand name computers’the industry’s top names’at prices simply not possible anywhere else. But that’s just the beginning. We also carry a vast inventory of components: laptop battery , ac adapters, and more. You’ll find emerging technologies as well, because at the end of the day, we love what we sell.

As we know in any laptop battery, an electrochemical reaction occurs like the ones described on the previous page. This reaction moves electrons from one pole to the other. The actual metals and electrolytes used control the voltage of the Sony VGP-BPS8 battery each different reaction has a characteristic voltage. For example, here’s what happens in one cell of a car’s lead-acid battery:

The cell has one plate made of lead and another plate made of lead dioxide, with a strong sulfuric acid electrolyte in which the plates are immersed.

Lead combines with SO4 (sulfate) to create PbSO4 (lead sulfate), plus one electron.

Lead dioxide, hydrogen ions and SO4 ions, plus electrons from the lead plate, create PbSO4 and water on the lead dioxide plate.

As the VGP-BPS8 battery discharges, both plates build up PbSO4 and water builds up in the acid. The characteristic voltage is about 2 volts per cell, so by combining six cells you get a 9cells battery.

A lead-acid battery has a nice feature ‘ the reaction is completely reversible. If you apply current to the battery at the right voltage, lead and lead dioxide form again on the plates so you can reuse the apple a1185, HP Pavilion DV9000 Battery over and over. In a zinc-carbon battery, there is no easy way to reverse the reaction because there is no easy way to get hydrogen gas back into the electrolyte.

Modern batteries use a variety of chemicals to power their reactions. Typical XPS M1530 battery chemistries include:

Zinc-carbon battery ‘ Also known as a standard carbon battery, zinc-carbon chemistry is used in all inexpensive AA, C and D dry-cell batteries. The electrodes are zinc and carbon, with an acidic paste between them that serves as the electrolyte.

Alkaline battery ‘ Alkaline chemistry is used in common Duracell and Energizer batteries, the electrodes are zinc and manganese-oxide, with an alkaline electrolyte.

Lithium-iodide battery ‘ Lithium-iodide chemistry is used in pacemakers and hearing aides because of their long life.(such as laptop battery )
Lead-acid battery ‘ Lead-acid chemistry is used in automobiles, the electrodes are made of lead and lead-oxide with a strong acidic electrolyte (rechargeable).
Nickel-cadmium battery ‘ The electrodes are nickel-hydroxide and cadmium, with potassium-hydroxide as the electrolyte (rechargeable).
Nickel-metal hydride battery ‘ This Dell RU006 Dell TK330 is rapidly replacing nickel-cadmium because it does not suffer from the memory effect that nickel-cadmiums do (rechargeable).

Lithium-ion battery ‘ With a very good power-to-weight ratio, this is often found in high-end laptop computers and cell phones (rechargeable).

Zinc-air battery ‘ This VGP-BPL8 battery is lightweight and rechargeable.

Zinc-mercury oxide battery ‘ This is often used in hearing-aids.

Silver-zinc battery ‘ This is used in aeronautical applications because the power-to-weight ratio is good.

As you can see, several of these batteries are rechargeable. What makes a battery rechargeable? In the next section, we’ll check out how rechargeable batteries

We’re not sure we’ve seen this much crapware installed on a PC before. Trend Micro is the trial antivirus of choice, while Asus(eee pc 1000he battery ) has shoehorned not one, but two toolbars into Internet Explorer in the form of the Google Toolbar and Windows Live toolbar. There’s an eBay icon on the desktop, another icon that’s an awful attempt to sell software, even more onsell, Asus’ trial web storage and a Wi-Fi app installer from Boingo. It also gives Minority Report’s advertising a good name.

By default it’s occupied by the wireless adapter, though, so there’s not much point in replacing it. As for the battery, the A1 model includes a large 6-cell apple a1185  battery; other models (likely not in North America) may go with a smaller 6-cell 63Wh battery.

The Gateway NV5933u  $649 price stands out in this laptop class, but this model is about much more than a low price. The internal components offer good everyday performance if you’re not a major gamer, and the standard Blu-ray disc drive is a sweet feature, even if most users will find it nonessential. If you can’t make do with this machine’s level of graphics performance, the Acer(dell xps m1530 battery) Aspire 5738PG Multi-Touch is not a bad bet for $150 more; plus, you’ll get a multi-touch display in the deal. But the size of that price difference underlines what a good deal the    laptop is for general use.

Once you’ve wiped the drool from your face (I’m not going to lie, I restarted it three times just to watch it boot that quickly), you’ll notice a lot of your settings are missing in your apps. This is because a lot of those preferences are stored in your home folder, which we didn’t copy over. To fix this, head into System preferences and open up the Accounts pane.

While the highly portable nature of notebooks exposes them to the knocks and bumps that are an inevitable feature of life on the move, this Sony (vgp-bpl8 vgp-bps8) model features a 3D-accelerometer monitoring system that detects freefalls, shocks and vibrations and protects the integrated HDD to secure against the loss of any personal data.

The Plantronics Backbeat 906 has a flexible headband design and the earphones are designed similar to those earlier Bose In-ear headphones. The headband is made of a flexible rubber band which can be folded and twisted. This flexible design makes wearing them comfortable even while lying on the bed. You could also just fold and tuck them away in your shirt’s pocket. This made the sony vgp-bps10 battery  Backbeat 906 easy to lug around. The earpiece supports three-way adjustment for better fit but fitting the earpiece tightly into the ear canal is tough. On the other hand, the headset looks good and has good build quality.

Many Australians enjoy reading outdoors and eInk is the best screen technology for this purpose because it’s easy to read even in bright sunlight. We confirmed this by reading a book with the $US489 Kindle DX in the middle of Sydney’s Hyde Park at noon on a bright sunny day.

Any hopes that the new processor might aid battery life were soon dashed, too. Just 3hrs 36mins of light usage is almost the same as before. Considering the Studio 1557 had a hotter quad-core Core i7 processor thrumming away under the hood, it  disappointing. If you need longer vgp-bps10 battery life, you抣l just have to consider the optional 9-cell battery which comes at a ?1 inc VAT premium.

How much better? Try >50x reduction in idle power, >20x reduction in audio power and 2-3x power reductions in browsing and video compared to the previous-generation Atom (a.k.a., “Menlow”) processor. These efficiencies translate into >10 days of standby, up to two days of audio playback and four to five hours of browsing and video life with common 1500mAh laptop batteries.

The Apple iPad is the device that single-handedly justified a tablet market for many manufacturers. It has a simple operating system based on the iPhone, a 10-inch touchscreen, fantastic hp elitebook 2530p battery life (10 hours) and access to hundreds of thousands of apps that can collectively do just about anything. It’s not perfect, but it set a high standard. Base models start at $500 for 16GB of storage and Wi-Fi; price goes up for 3G connections and more storage.

battery industry: urgent need for both internal and external charging
Speed up technical upgrading and product upgrades, is held in Beijing before the ninth China International Exhibition on Battery in the strongest voice. Experts said that China still needed some batteries to improve the quality of products, an urgent need to upgrade industrial technology batteries laptop battery , electric vehicle batteries, zinc-manganese batteries need to adjust the product structure.

Experts also said that my dell inspiron 6400 battery on a higher degree of dependence on international markets, especially in solar cells, more than 95% exports, 90% dependent on imports of raw materials, such “two out” much of the market risk, but also caused industry profits. Relatively backward industrial base of raw materials, the key materials still rely on imports, China’s high energy consumption, high pollution is only a very low return for economic benefits. Solar cell manufacturers such as the average profit margin is only about 8%, if the deduction of export tax rebates, the basic non-profitable enterprises.

sony vgp-bpl5a battery Industry is the comprehensive advantages of the traditional industries, but with new materials, new techniques, new technology, the vgp-bps9 vgp-bpl8 industry is increasingly becoming a newly emerging high-tech industries. It is said that in recent years, the development of China’s dell Latitude D820 industry showed the following characteristics: production of a steady increase in export growth, technological progress accelerated, to rationalize the product mix, diversification of enterprises, large-scale development, and equipment levels gradually increased, overall strength markedly increased. Battery industry has also driven the development of electronic and electrical appliances in China, non-ferrous metals, chemicals, mining, machinery and other related industries, construction in the national economy has played an important role.

The survey showed that nearly 5 years, the average sales revenue of China’s battery more than 20% of the annual growth rate of output growth rate of 10%, far exceeding the global average. The past, China’s battery to the traditional low-grade products; now mercury-free alkaline manganese battery, a lithium dell Inspiron 640m , dell Inspiron 700m , sealed maintenance-free valve-regulated lead-acid batteries, solar cells, etc. have been developed rapidly. Industrial restructuring of the world, in recent years, China is becoming the world’s battery production, processing and trading center, is the world’s largest inspiron 1501 battery  producer.

However, by the international financial crisis, since the second half of 2008, China’s battery industry, the growth rate of exports fell for the battery to increase sales of accounts receivable, economic decline. With cell phones, automobiles, electric bicycle battery accessory products such as the contraction of production and sales, the growth rate of cell production also fell. Show some of the enterprises to participate in the staff, businesses are now faced with the plight of vostro 1310 battery costs is mainly caused by a reduction in market competition, corporate profits fall significantly.

China Light Industry Information Center, according to people briefed on the first quarter of this year, the overall operation of China’s battery industry showed the following characteristics: Although the rebound in output, large-scale battery production enterprises the same period last year GDP growth of 9.87 percent, but the international market recession, the first quarter of battery with the same period last year exports declined by 31.86%. Toys affected by the export trade, the first quarter of button alkaline manganese battery exports continued to decline, a cylindrical alkaline manganese battery exports declined marginally, exports of other alkaline manganese batteries to accelerate the decline. At the same time, increased costs and reduced profits. 1 February this year, more than the size of the vgp-bps8 vgp-bps8 battery industry the total amount of corporate profits fell 68.78 percent year-on-year, more than the size of the battery industry companies face losses as high as 31.19 percent, the total loss of 785 million yuan for the same period last year rose 215.78 percent loss. Loss and further expand the industry, business difficulties. China’s export tax rebate policy adjustment effect is not obvious, while the green barriers on the impact of China’s battery industry is continuing. According to the European Union, “Official Gazette” issued by the battery and battery instructions, batteries  vgp-bps8 for lead, cadmium, mercury content in a more stringent target, and involves the recovery of the exorbitant costs. REACH regulations and instructions to improve battery RoSH registration fees and testing costs, substantial increase in battery production costs and export sales costs, some enterprises had to because of economic reasons and technical reasons to give up overseas markets.

At present, China’s battery industry is facing a comprehensive industrial upgrading. China Battery Industry Association, said the Secretary-General WANG Jingzhong, recently passed the “light industry restructuring and revitalization of planning” will help the sony fz battery  industry structural adjustment and industrial upgrading. Battery industry to take this opportunity to fight in the technology and equipment made significant progress made, and formed a group with strong international competitiveness of key enterprises, so that domestic demand will be further product and market development, value-added exports markedly improved, a more diversified market. At the same time to promote electric vehicles, power tools battery with the formation of new industry so that our country became the world’s largest rechargeable battery producer, the production of solar cells to maintain a leading position in the world and accelerate the development of the market and gradually ease the shortage and increase the battery export varieties, upgrade products and value-added. “Enhancing Internal Strength is the key.” WANG Jingzhong said.

It is reported that over the next few years, China’s battery industry will accelerate the technological upgrading and product upgrades, to effectively improve the ability to resist risk industries and international competitiveness, improve the capability of independent innovation and brand building, innovation and industry to establish a sound support system, the further implementation of technology and equipment domestic and market diversification, to speed up the apple a1185 battery , industry to the world by the world’s manufacturing power and manufacturing power forward. Physics, Chinese Academy of Sciences of the experts said, the battery industry to establish national technical research center, integration to enhance business capability of independent innovation, promoting the technological progress, we should focus on a breakthrough electric vehicle battery technology and the key to the key battery materials research and industrial production. China’s huge market for electric bicycle lithium ion battery industry has brought a good opportunity. “ dell xps m1530 battery electric vehicles is the most critical components, but also brings together multi-disciplinary scientific research results, the need for the Government chose to focus on high-quality support for enterprises.” In the exhibition, many companies made such an appeal.

If you can not restart the computer, sony vgp-bps8 battery  should be a problem with power adapter, I suggest you replace the adapter.

Also if your battery is very hot when charging, it maybe cant charge. You’d better take the battery out of laptop. After 1 hours, the battery temperature lower, then installed the battery to the laptop and charging.

There will be a large voltage electricity when charging the battery and plug in/out battery. The interface client often spark. In that time it is very easy to break the battery and mainborad. Generally the laptop battery cant charge after too many plug in/out times. So you should turn off your laptop when plug in/out battery.

The laptop battery also have a automatic battery protection CMOS chip to prevent over-discharge and other wrong operation. Some times the CMOS chip will automatically start the automatic protection and lock the battery to forbid charging. So you must store your battery in a cool dry area for about 3-5 days to unlock the studio 1535 battery . If it is cant work you must send your battery to repair center or change a new laptop battery.

Usually you must calibrate your battery every two months. You will find some useful info about How to calibrate your laotop battery here.

Please notice this : Take care of your battery, dont over charge-discharge your battery too many times. You’d better charge your battery at about 20% state-of-charge and store it at about 40% stat-of-charge.

Hi guys, maybe we always face this situation: you own a notebook for your business and work. you have finished work which must be reviewed by your customer or BOSS tomorrow, you accidently left your laptop in sleep mode and the battery discharged completely, then you charge your battery with AC charger, Dell Latitude D830 Battery, aslo your notebook OS reports that it is charging. After one night, you want to take your laptop to office, but the battery shows it is at 0% state-of-charge.

You try to charge it many times, but not work, that means your sony vgp-bps11 battery cant charge. Why your laptop battery cant charge, it is caused by your laptop or your laptop battery or your AC adapter?

The sale of materials, high efficiency Asus a32-f3 Battery silicon solar cells Mexico and the technologies are not listed companies Innovalight, Inc. announced today that it has hired Boris Mathiszik vice president of worldwide sales. hd438, kd186

Before joining Mr. Innovalight Mathiszik worked at BTU International (Nasdaq: BTUI), served as CEO of Asia. Starting in 2006, led by Mr. Mathiszik Shanghai and six offices in the region to achieve rapid sales growth, and manages manufacturing operations at the BTU in China. BTU International Prior to joining, Mr. Mathiszik Phoenix X-ray, Inc. Vice President of Sales. PHOENIX X-ray, Inc by GE (General Electric) acquired.

Mr. Mathiszik be responsible for training the sales organization and leadership Innovalight plans to expand the enterprise and global customers. He transferred from China, based in California Innovalight.

With the owners Innovalight is silicon ink-based nano-technology and processing technology, manufacturers of crystalline silicon solar cells have been installed on the production line to add a simple link, we can significantly increase sony vgp-bps11 battery the capacity and performance of solar cells while reducing costs.f2024a, f2024b , The opportunity is huge: the leader in the industry of solar energy research firm Navigant Consulting, Inc. This is now crystalline silicon solar cell technology has shown the commercial market for solar panel, 77%.

Boris Mathiszik said: “I am happy to grow the company during this exciting time to enter Innovalight. Innovalight now manufacture solar cells today is finding truly unique products. ”

Innovalight President and CEO Conrad Burke  vgp-bps11  vgp-bpl8 said: “Boris will join a very important meaning for our management team, he brings extensive experience in the industry of solar energy.’s Global sales industry manufacture of solar cells dell inspiron 1525 battery  has an excellent record files. ”

Mathiszik graduated from European Business School in Frankfurt, Germany (European Business School), a San Diego State University (San Diego State University) Master of Business Administration (MBA) degree.

Innovalight has developed a model for developing and struggling with their own platforms and technologies to process silicon ink will eventually conversion efficiency of solar cells has increased to 20%. Innovalight a silicon-ink process ink and the use of cells of high efficiency silicon solar applied for 60 patents.

First : Try cleaning the contacts metal on the battery. Ensure that your notebook’s power adapter connect the power, inspiron 1520 battery , nother paragraph has been connected with the notebook, and if the problem is not resolved. Would suggest that you remove the battery power adapter only through your computer.

In an order on behalf of vehicle manufacturers of electric cars before the war kicked off, the laptop battery manufacturers already ready.

Last week, Japan’s largest industrial electronics group Hitachi has already announced plans to expand its hybrid vehicle lithium-ion vgp-bps9 vgp-bpl8 production capacity target is by 2015 to expand production capacity 70 times to cover the annual 700,000 hybrid electric vehicle demand (each hybrid cars are usually equipped with a 30 ~ 50 lithium-ion battery), costs 20 billion to 300 billion yen. In the autumn of this year before the initial production capacity Hitachi plans to widen to more than 600%.

At the same time, has always been considered in the new energy vehicles in the market lags behind Europe and the United States on the Japanese car maker, is also the field of battery technology can not have any slack.

Not long ago, America’s leading supplier of automotive batteries, one of Johnson Controls and energy storage solutions provider, Shuai-fu was a joint venture of Johnson Controls – Shuai Fu had announced plans to set up its first production in the United States for the hybrid vehicle lithium-ion battery processing plant. Plant will be based on the original transformed plant is expected to cost around 220 million U.S. dollars transformation, the initial production capacity will reach 15 million lithium-ion batteries.

The reason why the car battery technology, has invested heavily on the one hand is the new energy sources has become a global topic for all countries in promoting the industrialization of new energy vehicles process; the other hand, battery technology as the core area of hybrid and electric cars , “Who is the first breakthrough in  HP Pavilion DM3 battery vgp-bps8 technology, who may become a future automotive industry, the overlord.” Automotive Safety and Energy, State Key Laboratory Ouyang Ming Gao told CBN reporter.

It is reported that Hitachi has received General Motors to produce 100,000 hybrid cars lithium-ion batteries under the orders from General Motors plans to sell these cars next year.

Johnson Controls – Shuai Fu will also get BMW 7-Series (model picture forums) Active Hybrid cars (expected in 2010 listing), Azure Dynamic hybrid electric commercial vehicle of the Balance Project (listed in 2010) and Ford’s first Plug-in Hybrid Electric Vehicle (expected in 2012 listed) the supply of lithium sony vgn-fz battery sony fz battery  hybrid system.

Moreover, Hitachi will also be two kinds of large-scale production for the next generation of hybrids using new lithium-ion batteries.

Zenverge, Inc., a leading developer of Advanced Media ICs, today announced that it has closed a $30 million Series C round of financing led by Battery Ventures. The company will use this round to ramp production and expand marketing and development activities to maintain its dramatic competitive advantage and broaden product offerings. Existing investors, DCM, Norwest Venture Partners (NVP),sony vgp-bpl8 battery  sony vaio vgn-fz battery and Motorola Ventures joined Battery Ventures in this round. Zenverge also announced today the appointment of Mr. Ken Lawler, general partner at Battery Ventures, to its board of directors.

Based on the Zenverge Entertainment Nexus (ZEN), a groundbreaking new architecture for HD media convergence, the ZN200 and ZN100 product classes represent industry-leading video quality and performance for media transcoding, encoding and decoding at the lowest system cost. Both classes of products are now shipping to select tier-one consumer electronics and operator equipment manufacturers worldwide, enabling them to provide consumers higher quality, universal access to all sources of content. Devices being powered by Zenverge products include HDTVs,vostro 1310 battery  dell studio 1535 battery Blu-ray recorders, set-top boxes, multimedia NAS devices, portable device adapters, PCs and network video equipment.

“We’re seeing great excitement around our ICs and the products into which they are designed. Digital media is being produced and consumed on more devices and at higher quality than ever before and we’re at the heart of it all. This funding gives us the financial strength to support the explosive growth we anticipate over the coming months,” said Zenverge CEO, Amir Mobini, “Battery’s strong semiconductor track record and synergistic portfolio will be of great value to Zenverge at this stage of our growth, and we welcome Ken to our board. Battery’s participation in MaxLinear, the first U.S., venture-backed semiconductor company founded since 2002 to go public, is a great testament to the firm’s value in our space.” hp elitebook 2530p battery

“We’ve been long-time semiconductor investors, and remain bullish where many others have backed off,” said Ken Lawler, general partner, Battery Ventures. “Although bullish, we are very selective in our investments. But when you see a team and technology like Zenverge, you jump at it. Their architecture addresses the problems at the heart of video applications — storage and reformatting — giving consumers anytime, any device access to video content. This is a team that knows each other well, Latitude D620 battery has highly defensible technology and major design wins under its belt. We look forward to supporting them as they continue to carve out a leadership role in the market.”

“We are excited to be working with our new investment partner Battery Ventures,” said DCM general partner, Carl Amdahl. “With this new infusion of capital, Zenverge has the means to aggressively pursue leadership in video transcoding, a market that only continues to grow as consumers produce vgp-bps9 vgp-bpl8 and view more video content on many more types of devices and formats.”

“Zenverge’s ability to raise $30 million in this challenging semiconductor venture market is a testament to the quality of the team and the efficacy of the products in the market. We look forward to working with management and the other investors to build the leading media IC company in the industry,” said Robert Abbott, general partner, Norwest Venture Partners.

“We are witnessing the explosive growth of video content on the one hand and new device categories for consuming video on the other hand,” said Reese Schroeder, managing director, Motorola Ventures. vgp-bps8 “Motorola has been at the forefront of this video revolution by working with content partners and operators to deliver this content to revolutionary new devices across networks. There is an opportunity for Zenverge’s technology to facilitate the video transformation that occurs at various points from video creation to initial delivery to enabling media mobility.”

Here’s a nice rant for you: One of my two Laptop batteries for my Inspiron 1525 battery  died a couple of weeks back in the middle of a business trip. Since I have two of them this wasn’t a huge issue, but still this is a major bummer especially since the batteries both are barely over a year old and have not been used very much at all. In fact I was using the battery a few days before it started ‘acting’ up and it has been holding a charge well.

Here’s what happens: The battery is not really dead, but it looks to me like some electronics inside of the battery are preventing the Dell Inspiron 1525 battery from charging. When I click on the battery indicator I get a funky blinking light and when inserted into the computer the the charge light just blinks orange instead of the regular green charging indicator. Did I mention the Dell Inspiron 6400 battery was working just fine a few days earlier with a charge hold well over 3 hours of work time.

This seems like such a rip off if you ask me. I started calling tech support to see if I could get a warranty on the Inspiron 1501 battery . Of course the warranty had expired exacly two weeks ago, and there was no budging the Dell support guy. FWIW, Dell doesn’t warranty batteries that are older than a year even if you have an extended warranty for the rest of the system.

Next I went to the Web Site to see what a new VGP-BPS8 VGP-BPS9 would cost and sure enough there’s some language that says it’s rated for 300 charge/discharges. Now I would really be curious how this is measured. I’m pretty sure this battery isn’t actually dead, but something has been quietly counting roughly how the batteries been charged and decided – dup, that’s enough for you buddy. So now I can’t even use that battery as a hold over battery while the system is plugged in (I like to use the battery as a UPS since we loose power on a regular basis here on Maui).

The worst part about this is that I rarely use the Sony VGP-BPS8 anyway. Sure when I travel I use the laptop on the plain or around a client’s office, but for the most part the machine is plugged in and under power. But even when it is – according to Dell the battery is discharged/recharged. If there’s electronics in the damn Thinkpad X60 battery
 shouldn’t it be smart enough to figure out that while it’s under power it should not engage the VGP-BPS8  in any way at all?

It really eats at me that we get reamed by so many companies any way they can get you. Always stick it to you in the details. There are a couple of other things that happened today that go along with that but I’ll leave that for yet another rant

Chargers for NiMH batteries are similar to NiCd systems but require more complex electronics. To begin with, the NiMH produces a very small voltage drop at full charge and the NDV is almost non-existent at charge rates below 0.5C and elevated temperatures. Aging and degenerating cell match diminish the already minute voltage delta further ( SONY VGN-FZ battery ).

A NiMH charger must respond to a voltage drop of 8 to 16mV. Making the charger too sensitive may terminate the fast charge halfway through the charge because voltage fluctuations and noise induced by the battery ( SONY Vaio VGN-FZ battery ) and charger can fool the NDV detection circuit. Most of today’s NiMH fast chargers use a combination of NDV, rate-of-temperature-increase (dT/dt), temperature sensing and timeout timers. The charger utilizes whatever comes first to terminate the fast-charge.

NiMH batteries that are allowed a brief overcharge deliver higher capacities than those charged by less aggressive methods. The gain is approximately 6 percent on a good battery ( Sony VGP-BPS8 battery ). The negative is shorter cycle life. Rather than 350 to 400 service cycles, this pack may be exhausted after 300.

NiMH batteries should be rapid rather than slow charged. Because NiMH does not absorb overcharge well, the trickle charge must be lower than that of NiCd and is set to around 0.05C. This explains why the original NiCd charger cannot be used to charge NiMH batteries( Sony VGP-BPS8 ).

It is difficult, if not impossible, to slow-charge a NiMH battery. At a C?rate of 0.1C and 0.3C, the voltage and temperature profiles fail to exhibit defined characteristics to measure the full charge state accurately and the charger must rely on a timer. Harmful overcharge can occur if a partially or fully charged battery ( VGP-BPS8 VGP-BPS9) is charged with a fixed timer. The same occurs if the battery has aged and can only hold 50 instead of 100 percent charge. Overcharge could occur even though the NiMH battery feels cool to the touch.

Lower-priced chargers may not apply a fully saturated charge. The full-charge detection may occur immediately after a given voltage peak is reached or a temperature threshold is detected ( Sony VGP-BPS10 battery ). These chargers are commonly promoted on the merit of short charge time and moderate price. Some ultra-fast chargers also fail to deliver full charge.

Charging Lithium Ion

Whereas charges for nickel-based batteries are current limiting devices, Li-ion chargers are voltage limiting. There is only one way to charge lithium-based batteries. The so-called ‘miracle chargers’, which claim to restore and prolong batteries ( Sony VGP-BPS11 battery ), do not exist for lithium chemistries. Neither does a super-fast charging solution apply. Manufacturers of Li-ion cells dictate very strict guidelines in charge procedures.

The early graphite system demanded a voltage limit of 4.10V/cell. Although higher voltages deliver more capacity, cell oxidation shortened the service life if charged above the 4.10V/cell threshold. This problem has been solved with chemical additives ( Sony VGP-BPS11 ). Today, most Li-ion cells are charged to 4.20V with a tolerance of +/?0.05V/cell.

The charge time of most chargers is about 3 hours. The battery remains cool during charge. Full charge is attained after the voltage has reached the voltage threshold and the current has dropped low and leveled off .

Increasing the charge current does not shorten the charge time by much. Although the voltage peak is reached quicker with higher current, the topping charge will take longer. Figure 2 shows the voltage and current signature of a charger as the Li-ion cell passes through stage one and two ( SONY VGN-FZ battery  ).

Figure 2: Charge stages of a Li-ion battery. Increasing the charge current on a Li-ion charger does not shorten the charge time by much. Although the voltage peak is reached quicker with higher current, the topping charge will take longer.

Some chargers claim to fast-charge a Li-ion battery ( VGP-BPS9 )n one hour or less. Such a charger eliminates stage 2 and goes directly to ‘ready’ once the voltage threshold is reached at the end of stage 1. The charge level at this point is about 70 percent. The topping charge typically takes twice as long as the initial charge.

No trickle charge is applied because Li-ion is unable to absorb overcharge. Trickle charge could cause plating of metallic lithium, a condition that renders the cell unstable. Instead, a brief topping charge is applied to compensate for the small self-discharge the battery and its protective circuit consume. Depending on the battery, topping charge may be repeated once every 20 days. Typically, the charge kicks in when the open terminal voltage drops to 4.05V/cell and turns off at 4.20V/cell.

What if a battery is inadvertently overcharged? Li-ion batteries are designed to operate safely within their normal operating voltage but become increasingly unstable if charged to higher voltages. When charging above 4.30V, the cell causes lithium metal plating on the anode; the cathode material becomes an oxidizing agent, loses stability and releases oxygen. Overcharging causes the cell to heat up .

Much attention has been placed on the safety of Li-ion to prevent over-charge and over-discharge. Commercial Li-ion battery packs contain a protection circuit that prevents the cell voltage from going too high while charging. The upper voltage threshold is typically set to 4.30V/cell. Temperature sensing disconnects the charge if the cell temperature approaches 90°C (194°F); and a mechanical pressure switch on many cells permanently interrupt the current path if a safe pressure threshold is exceeded. Exceptions are made on some spinel (manganese) packs containing one or two small cells (VGP-BPL8 )The charge process of a Li-ion Polymer is similar to Li-ion. These batteries use a gelled electrolyte to improve conductivity.

Charging at High and Low Temperatures

Rechargeable batteries work under a reasonably wide temperature range. This, however, does not automatically permit charging at these extreme conditions. While hot or cold temperatures cannot always be avoided, recharging a battery is at the control of the user. Efforts should be made to charge at room temperatures. No commercial battery should be charged below freezing.

Nickel-based batteries should only be fast-charged between 10°C to 30°C (50°F to 86°F). Below 5°C (41°F), the ability to recombine oxygen and hydrogen is greatly reduced and the resulting pressure build up may cause the cells to vent.
The charge acceptance of nickel-based batteries  at higher temperatures is drastically reduced. A battery that provides a capacity of 100 percent if charged at moderate room temperature only accepts 70 percent if charged at 45°C (113°F). This explains the poor performance of vehicular chargers in the summer.

The Li-ion batteries offer reasonably good charge performance throughout the temperature range. Below 5°C (41°F), the charge should be with less than 1C. Charging at freezing temperatures must be avoided because plating of lithium metal could occur .

The Cadex Universal Conditioning Chargers (UCC) feature a built-in temperature sensor that applies a trickle charge if the battery is too cold. No charge is applied if too hot. These advanced chargers use reverse load charge and detect the full charge by NDV, dT/dt sensing and timers. Intelligent battery  adapters configure the charger to the correct charge algorithm. The UCC chargers are available in single, dual and six bay (Figure 3) configurations. The two-bay unit is designed for vehicle mounting.

Summary

Commercial fast-chargers are often not designed in the best interests of the battery. The two common battery SONY Vaio VGN-FZ battery ). killers are high temperature during charge and incorrect trickle charge after charge.
Choosing a quality charger makes common sense. This is especially true when considering the high cost of battery replacements and the frustration poorly performing batteries create. In most cases, the extra money invested in a more advanced charger is returned in longer lasting and better performing batteries.

May 10, Intel spokesman confirmed last Friday, said Intel will soon provide a light, thin new low-power processor.

The new processors apply the same light as the Internet and configuration of the larger screen and more powerful features of the notebook computer. These processors will be Intel Core Duo i3 and i5’s brand. The name of this notebook is ultra-thin notebook computers, selling prices in between 400-800 U.S. dollars, to provide sufficient performance to run standard applications and high-definition multimedia.

Last Thursday revealed a network broadcast the Intel roadmap shows the performance of this processor voltage slightly lower than the standard price of 133 dollars and 294 U.S. dollars in Core i3 and i5 Core notebook processor. However, this processor for the Internet faster than the Intel Atom processor this fast.

The road map also shows that the chip will be launched this quarter. Intel spokesman declined to release the date of this chip, performance and pricing details of the comment. However, the ultra-thin notebook PC processor prices generally cheaper than mainstream notebook computer chips.

Intel vice president and manager of PC customers to achieve operational and Stephen Smith said in the webcast session, this new processor will be used in notebook computers later this year.

Smith said that the chip will use the latest 32-nanometer production process. Launched last year with Intel Core and Pentium brand, the first ultra-thin notebook computer chips, these new processors will provide greater performance and more energy efficient. Intel Core Duo i3 and i5 processors in one chip package the CPU and graphics processor integrated together to improve performance while also reducing power consumption. The chip can simultaneously run on each core two threads, to improve application performance.

Ultra-thin notebooks such products are launched in January last year, AMD Athlon Neo processor after it first appears. Intel followed up, in a few months launched a new ultra-thin notebook computer chips. This ultra-thin notebook computers is expected to fill the Internet and mainstream notebook PCs directly to the performance and power gap. However, the ultra-thin notebook computer applications were lower.

However, according to market research firm iSuppli said in a statement last Thursday, ultra-thin notebook PC shipments will grow this year. iSuppli expects this year’s ultra-thin notebook PC shipments will reach 14.5 million units, more than 750 million units last year, up 93%. iSuppli forecasts full year notebook shipments will reach 209.5 million units, up 25.5% over last year.

Acer(acer laptop batteries) Is the top in the ultra-thin notebook computer makers last year, shipments of 500 million units. Second, ASUS( Eee PC 1000HE battery ), HP( HP Pavilion DV9000 battery ), Dell( Dell Inspiron 1501 battery ) and Sony( Sony VGP-BPS8 battery ). Apple is still not in their ultra-thin notebook computer processors used.