My battery world

Into 2009, with CITIC Guoan, Shanshangufen, Jiangsu Guotai, mining in Tibet, represented by new energy vehicles set off a lithium laptop battery concept stocks Ox first round of shock waves. At the recent release of “Beijing on the first purchase of the first independent innovation Product catalog”, the first Science and Technology Industry Co., Ltd. Beijing University of lithium iron phosphate power battery, CITIC Guoan Mengguli Power Technology Co., Ltd. plastic film, high-power lithium-ion power laptop battery and Beijing Changli United Energy Technology Co., Ltd. power type mechanical plug block zinc – air metal fuel cell is one of them.

As the key components of electric vehicles, power battery development for electric vehicles is significant. Strong support at the national 863 Program, China’s energy-saving and new energy vehicles to achieve a historic breakthrough innovation, single motive power batteries, motors and other key components R & D breakthroughs, accelerate the pace of industrialization, investment is gaining momentum. Recently published “automobile industry restructuring and revitalization plan” also clearly pointed to “the implementation of new energy vehicles strategies to promote the pure electric vehicles, plug-in hybrid vehicles and their key components in industrial production. To acquire new energy vehicles dedicated engines and Power modules (motor, battery and management dell Latitude D830 batterydell Latitude X300 battery systems, etc.) optimized design, scale and cost of production process control technology. to build momentum in the module production system to form a 1 billion-an hours (Ah) high-performance single vehicle power battery production capabilities. ” This is the domestic power battery manufacturers and battery management systems provider made no small challenge.

Single power battery research and development was a breakthrough

In the “Tenth Five-Year” National 863 Plan major projects electric vehicles, “Eleventh Five-Year” National 863 Plan energy-saving and new energy vehicles and other major projects in key state projects, all of the single motive power batteries, especially nickel-hydrogen batteries and lithium-ion power the battery provides the support, which is also the current international research and development and the focus of attention.

“CITIC Guoan Mengguli as a national energy-saving and new energy vehicles 863 major projects team members to undertake the” electric vehicle with lithium-ion battery power system development “issue.” CITIC Guoan Mengguli, general manager of the Lu said that the company the long-term commitment to electric vehicles powered by lithium battery research and development and production, have devoted a lot of money and human resources, has actively developed a number of power lithium battery and its key application technology, the world’s first successful development of electric vehicles with large-capacity lithium Dell Latitude D620 battery, Dell Latitude D630 battery manganese Power lithium batteries, the successful completion of major projects, the 2008 Beijing Olympic Games, “large-capacity lithium manganese battery power production technology”, by domestic and international attention.

It is understood that in 2006, CITIC Guoan Mengguli commitment to the “electric vehicle with lithium-ion battery systems development” project, the main goal is the key to power batteries for single materials, preparation techniques and assembly techniques, but for the electric bus to provide high cost-effective, secure good performance lithium-ion battery. The project is the first time the plastic film used in large-capacity power batteries, using lithium manganese oxide with a better matching of the anode material, and can improve the performance of the new safe battery electrolyte, optimizing the battery production process, power battery capacity has improved thermal performance and battery connection techniques, group performance. The battery’s energy density 120wh/kg, can be 4C magnification of the charge and discharge, safety performance, through the national 863 major projects power battery electric vehicle test center testing, all targets were met or exceeded the project’s requirements.

First the relevant person in charge of Beijing University, said Beijing University first in the National 863 Program, supported by years of technical research to achieve high-performance materials, and single lithium iron phosphate power battery and industrial preparation of the breakthrough technology and a smooth realization of industrial technology as the world’s few companies able to mass production of lithium iron phosphate materials, one of the enterprises, the preparation of lithium iron phosphate power battery successfully applied to the Olympic Games of pure electric and pure electric bus sanitation vehicles, good social benefits.

Power battery price to be improved

Only power batteries in the technical and cost breakthroughs, electric vehicles, will it be possible to achieve industrialization. Ministry of Science and the current focus on promoting the “10 City, 1000,” Application of electric vehicle demonstration project will lead to nickel-metal hydride, lithium-ion battery large-scale applications Dell Latitude D820 battery, Dell Latitude D830 battery, thereby enhancing the power cell technology and quality levels, in order to lay the rapid development of electric vehicles parts and components foundation.

The industry believes that both the nickel-hydrogen battery or a lithium-ion battery, in order to win the market, must have a high cost-effective. “We should take into account when the design of key components of cars and low-cost development. Currently engaged in research and development vehicle battery power is not auto-parts business is essentially the background and experience, these business-to-vehicle battery product concept, the development process, the production process design as well as the cost of calculation methods are inconsistent with the automobile industry, and even differ greatly. In addition, vehicle power battery industry practitioners, mostly from the traditional battery industry, lack of understanding of the car. to develop a suitable vehicle with the power battery using environment and excellent performance of the vehicle motive power batteries, need to know more vehicle-related professional skills. Therefore, the vehicle battery power companies and automobile companies should establish closer cooperation. ”

So, how to strengthen cooperation and improve the cost-effective vehicle battery power?

Hunan Zhuzhou CSR Times Electric Vehicle Co., Ltd. related to believe that, first of all, vehicle battery power enterprises should seek technological breakthroughs, from the principle to solve the battery reliability issues and to increase battery life and reduce battery consumption and heat . Secondly, the application level, vehicle battery power companies to provide system solutions, to strengthen communication and coordination vehicle business, from providing batteries to provide battery packs to the changes in monomer, including cells in groups, cooling, protective, so as to integrate in the form of package the company provides products to the downstream. Third, the vehicle battery power enterprises not only provide products to downstream firms, but also to upstream and downstream enterprises to provide services for the upstream and downstream enterprises and end-users to maintain and repair the battery means and methods to improve battery life. Fourth, the vehicle battery dell Inspiron 6400 battery,dell Inspiron 640m battery power enterprises should make full use of “10 City, 1000,” the pilot the opportunity to enhance the level of the battery production process to improve the consistency of the battery and to achieve scale production, reduce production costs. Fifth, at this stage, vehicle power battery battery recycling technology research and development enterprises should offer battery recycling services. Because the higher the residual value of the battery recycling, battery recycling can be further reduced through the use of the cost of the user.

QI Lu said the rapid development of fully electric vehicles that could trigger a complete revolution in the manufacturing of vehicles. Different from the traditional automobile industry, electric cars are built on an advanced battery energy storage system, motor drive systems and electronic and computer control systems on the basis of the three technologies. Thus, with the core technologies of electric vehicles, businesses will have the opportunity to rely on their own core technologies to develop a variety of electric vehicle drive system, and through cooperation with the automobile companies to produce high quality electric vehicles.

Battery management system is the bottleneck

“The new energy vehicles battery power system upstream and downstream industry chain from raw materials, batteries, battery critical components, single cells, battery management systems, new energy sources constitute a complete vehicles.” TX Investment Consulting Co., Ltd. Li Meng Hai auto industry analyst said, “China To plug-in hybrid vehicles and pure electric vehicles, automotive industry to catch up with the world powers, we must increase the battery management system to support the industrialization efforts to nurture independent, professional battery management system provider. “Meng-sea view, only Battery Management System R & D personnel, in order to truly realize automotive technology with the traditional single battery technology upstream and downstream convergence before we can make single battery consistency, reliability, performance requirements, in order to promote the single battery production technology improvement and business提高.

It is understood that the current domestic battery power into a single group technology, modular technology is not yet mature, the key question is not sophisticated battery management system, if a single battery failure, the entire battery pack performance will be greatly affected , and reliable battery management system can be well-designed control algorithm to avoid these problems. Therefore, to solve this problem is to accelerate the vehicle battery power industrial development a top priority.

An auto industry analyst, said power battery industry chain from the point of view, is capable of “Hanlaobaoshou” enterprise first battery management system provider, these enterprises are the most profitable on the downstream industries, followed by grasp in advance market opportunities for single battery supplier and core material suppliers. It is understood that some enterprises have been involved in the current domestic battery management system and its test area, but are in the initial stage.

Deputy party secretary of Shenzhen Municipal Government, Mayor Liu Yingli, said technology consultants, DuPont solar project is a cooperation between Shenzhen and Hong Kong crystallization, not only for the “Shenzhen-Hong Kong Innovation Circle “project opened a new page, but also for future  Dell Inspiron 630m battery, Dell Inspiron 640m battery development a good foundation. Shenzhen has long attached great importance to PV applications, has recently played an active role in the development of” new energy development plan “, and vigorously promote the city of photovoltaic applications, efforts will be reflected in the country to play in cities demonstration application Shenzhen, Shenzhen is also the basis of conditions in photovoltaic applications, marching in the forefront in China.

It is understood that fluctuations in world oil prices, environmental issues are becoming increasingly serious, the production of photovoltaic electricity has become a topical area of concern to people. DuPont Solar Energy Co., Ltd is a wholly owned subsidiary of DuPont, its activities in China with the technical photovoltaic in China, promotion of new energy industry of China. In this strategy, the company established in Hong Kong, thin film solar R & D Center in Shenzhen to establish production base in the first, China’s first fifth (generation Gen 5) Certified by TUV amorphous silicon thin lines cell film solar production. At the same time, these are the first organizations were invited to participate in the “Shenzhen-Hong Kong Innovation Circle” project.

Appraisal meeting, experts were unanimously adopted a thin film cell solar DuPont products, including thin film amorphous silicon solar (back) of cell components, thin film amorphous silicon solar (double-glazing type) quality components of the battery in accordance with national requirements and attained the international standard, identified DuPont silicon thin film  Dell Inspiron 6400 battery, Dell Inspiron 9200 battery amorphous solar cells in terms of performance output, the return on investment, payback period of energy protecting the environment, building-integrated integration, production and economic efficiency, and many have outstanding performance for the market leading products. The experts also found DuPont, with capacities of complete system solutions.

The previous day’s afternoon, entrepreneurial elite award the respondent will be on-site “smoke,” contest organizers from around the world from the program book, 688 copies of selected six projects are internationally competitive high-tech products.

Zhang Xia-Chang to play it all themselves. He first took out a piece of paper, and soon, he reached out a shirt pocket, less than one cubic centimeters of the black object, “This is my invention of paper battery,” paper battery with a contrast white, like the thin, Less than half a millimeter thick at the scene who was immediately attracted.

Shortly afterward, Zhang Xia-Chang has removed a card of the lithium battery and replace the battery of his invention of paper, “Happy Birthday to You!” Immediately echoed at the scene.

The provisions of this competition, entrepreneurship Elite Award winning project must be completed within 6 months after the corporation registration, the registered capital of no less than three million yuan or the equivalent of 300 million yuan in foreign currency. Company to complete the registration, and registered capital of all the place, within 1 month after, Ningbo National Hi-tech Zone to offer 100 yuan as “business elite Award.”

Thin flexible paper battery in 2007 by the U.S. “Time” magazine as “the best innovations of 2006, one of eight”, the same year, Zhang Xia-Chang also won the Phoenix Satellite TV and other media named the “2006 Award of Chinese influence in the world.”

What is the paper batteries? “This is the paper battery, it uses one side galvanized on one side of the thin layer of manganese dioxide coated paper as a conductor, each thickness is less than 0.5 mm, and the paper-soft. The above two black spots, is the positive and negative poles. “Xia-Chang out of your pocket a thickness and size of a golf business card-sized” pieces of paper, “said,” For example, we are now looking at a newspaper that only static text and pictures, if installed on the paper in the newspaper batteries, You will be able to turn over a newspaper
 
In the “2006 Chinese in the World Award” ceremony, someone excitedly announced: “With the paper batteries, after the notebook computer can be very handy in!” Later, also said: “The paper will be the advent of the battery to solve human energy crisis an improvement! “Zhang Xia-Chang correct that this is a media and public opinion in the paper batteries that came when the common misreading. “Compared with ordinary button battery, this battery voltage of 1.5V, the cost of very low (just a few minutes to a few cents each), materials, environmental protection, and has advantages such as household garbage, size, and shape of flexible, easy-to-application integration. can be used as cosmetics, smart cards, musical greeting cards, the human epidermal drug permeable membrane, permeable membrane skin care products, paper, LED, electronic paper, sensors and radio frequency identification tags (commonly known as RFID) products such as Power Supply to avoid the traditional batteries will produce metal, lithium and alkaline compounds leakage problem. ”
 
This soft, low-cost battery will be a huge convenience. Use it to produce the electronic tags can replace the traditional bar code labels, intelligent. Zhang Xia-Chang, for example, imagine that in the supermarket, the customer can simply select the dozens of bags of different kinds of food and other items on the carts pushed to the cash register where next to each item on the packaging of the electronic tags will be on reading emitted signal, the customer can leave after payment, without staff, and the anti-theft rate was 100%.

Mobile phone battery explosion caused by the batteries

According to reports, mainly by mobile phone batteries batteries, security control circuit and package three parts. One of the most important part is the batteries, it is the electrical energy storage device, when there is overcharge, over-discharge, etc., there may be low-quality battery core breakdown in the membrane, so that batteries produced in the positive and negative short-circuit, easy to produce an explosion caused by high temperature and pressure.

HE Gui Li pointed out that, in order to prevent this from happening, qualified in the composition of the battery by adding a safety control circuit to prevent short-circuit occurs. Meanwhile, the dell Inspiron 1300 battery,dell Inspiron 1420 battery package, the battery will be qualified to set the shell discharge pressure device to prevent excessive pressure arising from expansion. In addition, the shell materials, manufacturers will choose the regular aluminum alloy, this material is thinner, there is a certain degree of flexibility on the degree of pressure, while the counterfeit products are generally based on iron, low cost, once the explosion would cause great bodily harm sex.

“Do not believe the ads in the super-capacity battery, the battery capacity and the volume related to the current level of technology is difficult to achieve small size, large capacity.” HO Gui Li, reminds consumers that “consumer identification of counterfeit and shoddy battery level is not high must go to regular stores. ”

There are differences between unified standard mobile phone battery

Prior to this, Gentile laboratory has proposed to establish a unified standard cell phone batteries. It is understood that the standard is currently under development, the time being there is no specific timetable for release.

He Gui Li said that the development of a unified standard mobile phone battery original intention, first and foremost to provide consumers with convenience; followed by updates of mobile phones faster, if each cell phone battery is different, will increase production costs; also can be lengthened mobile phone and battery life of both products, for building a conservation-based social and environmental protection are beneficial.

It is reported that a unified standard for mobile phone batteries, mobile phone manufacturers have different reflection: Domestic manufacturers are more sympathetic, and a higher market share of foreign enterprises will not so great, one of their procurement costs low, and second, the sale of the battery there will certainly be profitable.
“Unified standard mobile phone battery will not be a mandatory policy, as mobile phone handsets shape design is a major selling point, if forced to use a unified design of the battery will cause limitations. After the mobile phone battery will be divided into two kinds of generic and non-generic, so that consumers there are different options at the time of purchase. “

The key is to resolve the battery anode material. Chinese Academy of Sciences, Changchun Institute of scientific and technological personnel should be started in 1997 from the nickel – hydrogen dell Inspiron 6000 battery anode material for research work, has developed three kinds of new type of anode material. The new battery anode containing rare-earth materials, -40 ℃ low temperature conditions, the discharge capacity is 14-17 times more common anode materials. Be held in Hangzhou this year, the Third National Conference on hydrogen, the Institute’s research work gave rise to peers, experts and scholars have a strong interest.

In the full grasp of this low-temperature battery cathode materials, and low-temperature batteries key technologies and key preparation process, the CAS Changchun Institute of scientific and technical personnel have applied for four national invention patents.

A group of Massachusetts Institute of Technology engineers in the journal “Nature” published a research report that this technology allows mobile phones and computers charging time is much shorter, but also can be used to create a better battery for electric vehicle use . Since the new batteries are widely used the old material, so I believe in the market within a few years.

The advantages of lithium batteries is able to store energy, drawback is that charge and discharge slowly. The scientific community has always maintained that, resulting in slow Li-ion battery charge and discharge the reason is responsible for carrying charge lithium-ion (lithium ion) moving too slowly. However, this group of engineers in operation five years ago, relying on computer models and found that common battery materials, lithium iron phosphate (lithium iron phosphate) in the lithium-ion velocity is very fast.

Cede said research team member, they found that slow down the speed is the lithium-ion battery material structure. So they change the materials, the production and structure, to allow lithium ions can move quickly. The research team used a new material that, to create a charging time of only 10-20 seconds of the lithium battery.

     “This innovative alliance for strengthening Germany’s position is essential. In this development process, we have achieved as early as possible a decisive breakthrough in battery materials. So as to reduce the cost of the battery”, BAS board member and the R & D projects, said spokesman Andreas Kreimeyer.

     The first and second-generation lithium-ion battery has come to apply to notebook computers, smart phones, digital cameras, while the third and fourth generation of lithium-ion battery R & D goal is a more stable system. The decisive factor in the success of the new safety and efficiency of the battery is high, the price is reasonable. And to strive to make the energy density than current batteries increased two to five times. So as to enable plug-in hybrid and electric vehicles to travel distances up to people to an acceptable level.

     BASF, Freudenberg Vliesstoffe, and SGL Carbon Corporation is responsible for material research and development. The battery technology from Fraunhofer Institut Itzehoe, as well as Gaia, Leclanché and Bosch companies. The design of the car handed over to Volkswagen and energy group EnBW, so that high-energy batteries can be perfectly integrated into the energy supply system. Berlin, Bonn, Clausthal, Darmstadt, Giessen, Hannover, Münster and other places, universities and Paul-Scherrer Institute in Switzerland, and Dresden, Leibniz students basic theoretical research carried out in cooperation.

Second, third SNEC (2009) International Photovoltaic Solar Energy will be held in Shanghai, May 6-8, there will be more than 700 national and international companies with PV exhibition include equipment for power generation photovoltaic materials, photovoltaic cells, photovoltaic products and components, as well as engineering and photovoltaic systems.

Due to the high cost of production of solar photovoltaic energy, development of industry are mainly from around the world to subsidize policy-oriented. The photovoltaic power generation in the policies of all countries support introduced by the government, the world photovoltaic industry to overcome the international financial crisis began to heat combined with the cost of investment down to make the attractive investment for a significant increase in solar energy. Over the last 10 years, the global PV industry, production and capacity are more than 40% compound growth rate of growth in 2008 global production of photovoltaic cells for 6.4GW, an increase of 60 %, continuing strong growth in the years position. China became the world’s leading producer countries of photovoltaics, the global production of photovoltaic cells, which occupy about 40% of production. When in 2008 the World’s Top 25 PV companies in China accounted for 8, the total output of 1821MW, China Taiwan accounted for three, the total output of 723.5MW.

From the perspective of capacity in 2008, the world has installed photovoltaic cells 5600MW, up 134%. Installed capacity of China in 2008 was only 40 MW, only 0.7%, we can see, the Chinese market will be installed photovoltaic cells to start, the market has great potential.

Chinese version of the solar roofs program, strength to help the domestic photovoltaic industry, the arrival of spring. In late March the Ministry of Finance issued “on accelerating the implementation of solar energy for building applications PV opinions” and so on, because in 2009 the principle of subsidy standards set at 20 yuan / Wp, means that the production cost of photovoltaic electricity can be reduced to 0.58 yuan / kWh, photovoltaic domestic demand started. We expect the grant program is only the beginning in May is expected to launch a “New Energy Industry Promotion Plan”, should also introducing policies.

Crystalline silicon thin film photovoltaic cells and photovoltaic cells to increase both, compare the cost advantages of thin-film batteries and more. Of crystalline silicon cells cost per watt limit of 1.27 U.S. dollars, while the thin film batteries cost per watt below the limit of one U.S. dollar. We estimate the current installed capacity of monocrystalline silicon cells cost 19 yuan / wp cost of thin film solar cells installed capacity of 12 yuan / wp about. Both are expected to grow, increased its share of thin-film batteries. In the short-term demand for thin-film batteries are concentrated in areas with low land costs and BIPV, while the crystalline silicon is still the general public and increase the share of thin film batteries, because the basic thin dell Latitude D830 batterydell Latitude X300 battery  film and advantage of low cost, it will mark the beginning of rapid growth, high growth rate in crystalline silicon cells.

The solar industry’s energy needs based on pick up, all the links of different levels of benefits, we give priority to recommend high-end manufacturers of thin-film battery and component suppliers, followed by crystalline silicon cells or the integration of upstream manufacturers and downstream, is again the upper polysilicon crystalline silicon cells.

The company in July 2004 on the development achieved by the year 2010 with the abatement of greenhouse gas emissions contribute to global warming, the amount equal to zero business objectives load, and has been to achieve this aim. The real point of view of 03 years, emissions of 144 million tonnes, while the quantity of emissions contribute only 14 million tonnes, so in the company was asked “if the target is too high . After great efforts to develop the company contribution to the large amount of gas emissions greenhouse products, including the production of electricity without emitting CO2 solar cells, and the consumption of energy less than the equivalent CRT TV, LCD TV. One result, despite the slowdown in global economic conditions, the impact of reduced production, 08 the amount of annual emissions of greenhouse gas emissions contribute to, or reached 1.97 million tonnes, more than 1.7 million tonnes of emissions. Emissions from the production of reduced emissions of 130,000 tonnes, due to factories to take steps to improve the emissions of 30,000 tonnes. Contribution to precisely this amount of reduction to understand the contribution of solar cell capacity of 1.02 million tonnes, refrigerator, air conditioning and LCD TV and other appliances contribution of energy saving effect of 95 million tons. The amount of the contribution of emission energy saving equipment from 10 years ago, the average power equipment, more calculated.

Regarding goals for the year 2012, the company said that currently under investigation dell Inspiron 1300 battery, the details are not publicly. The Executive Director and Chief Minister of Environmental Safety Division Morimoto Philip said: “if the Sharp with the Italian Enel Power Company and other cooperation projects and the ongoing construction of solar cell plant in Sakai City will put into production on schedule to achieve, should increase solar cell will be much to contribute.

Does not require the battery for 10 hours of rechargeable battery to activate the activity of the normal charge-discharge method for activation.

The proposed method: According to the available information suggests that the activation of cell work should be completed at the factory, and laptop battery factory with a capacity of some natural wear and tear in order to avoid damaging the battery. Activation of the battery should be in no circumstances to protect the circuit can be with its own lithium battery circuit protection circuit, the purpose of this piece of the circuit is to avoid excessive hp Pavilion dv2000 battery ,hp Pavilion DV4000 battery charge and discharge, generally filled with the battery after charging when the indicator light off , the battery can not be recharged into the electricity, and then you then plug the power plug to recharge the battery in the face of what use? Available from the battery can be seen on the status of the battery have any charge, another teaches you a simple way to be able to determine whether there during the battery charging, battery charging, when the phenomenon will have a fever, when the battery is full after one hour (power plug does not pull), you go try the battery to see if the battery is still warm not hot? The result is definitely cold, because the battery is not charging and discharging state certainly does not heat. Notebook makers at the factory will propose that a new battery for more than 10 hours. The author of this opinion, should be taken into account that some notebook manufacturers a new user in the new battery charge when not fully grasp the skills, simply so that they can directly charge 10 hours, so this should be the business of expediency.

How to correctly charge

Most people said that the unnecessary use automatic shutdown and then charge, and do not arbitrarily charge. Are generally used when the battery needs charging when the computer prompted further charge, of course, prompts the time can be set, the default is to 3%.

I proposed approach with the majority of the people is the same. In fact, regardless of laptop use nickel-metal hydride or lithium batteries, these batteries are have a memory effect, and nickel-metal hydride batteries with memory effect is very obvious, but equally there will be lithium memory effect, but its memory effect smaller than the nickel-metal hydride Bale . There is no memory effect on lithium to say, only exaggerated and irresponsible business conduct in advertising, is totally misleading. Well, since the battery has a memory effect, it should be noted when charging point, as far as possible and then run out of charge, but do not have to deliberately say must use the computer to automatically shut down, so that although there is no harm in using them (because the laptop battery has a charge discharge protection and automatic shutdown in general has not yet reached notebook battery discharge protection standards), but you do not feel so tired? In fact, less than 3% of the charge in this way is very good, memories will certainly be the effect, compared to natural wear and tear, it should be nothing. As for the charge that they want to charge on the point of view, the author is completely disagree, and have already said, whether laptop battery nickel-metal hydride or lithium, which has a memory effect, if in this way then the battery life will be shortened.

Unplug the battery when the external power supply is

Most people use an external power source, will the battery removed, only a few use an external power supply when the battery is placed above, but their brands are used in several international brand.

In fact, if the battery is removed, the conflict focused on the use of an external power supply when the battery is charging to the issue. We should know that the number of charging and discharging the battery life is directly related to the general lithium battery set the number of charging and discharging are fixed number of charge cycles only 400-600 times, specially modified products, but 800 times, once for each rechargeable batteries a step forward to retirement. The first argument is simply because they are afraid to use power, the battery will be conducted on the above charge, not only increase the number of charge cycles, but will also cause overcharge. The second view is that the battery is full power on the computer in the use of an external power supply hp Pavilion DV5000 battery ,hp Pavilion dv6000 battery will not recharge.

In fact, both views have their right side, but also the wrong place. Because it is only the views expressed by individuals is not very comprehensive, after I investigated, many notebook manufacturers are taking into account the vulnerability of the battery, and the product added to the battery protection technology, and thus the corresponding different brand laptop batteries charging protection technology is different, like some large companies do very well in this regard, such as: IBM, Hewlett-Packard, Toshiba, Compaq, etc.. One of the most thoughtful consideration is that IBM, IBM’s notebook computers can detect the battery discharge situation, ThinkPad notebook battery only less than 95% of the time will automatically recharge. This can play a very good protective effect on the battery, and now many other manufacturers have followed suit. So, like the battery, you do not have the time to use pull down, because only when the capacity less than 95% of the time it would charge. But even so, if you are prolonged use of computers, or will the battery be removed to compare the good, because the long-running laptop heat generated when the battery will cause some damage. However, some other “little brand” laptop batteries, may not enjoy such treatment, because it has not done inside the battery protection technology. I like to use a certain brand of notebook computers, if the fully charged battery on the above, when using an external power supply was confirmed when the first charge about electricity, because the battery storage, will have wear and tear, can not reach 100%, while not 100% as long as , power supply connected to the charge. Each access to external power supply is equivalent to charging the battery once, although only a small charge will be the time. Therefore propose that we use when the machine according to their own circumstances, look at the laptop manual, choose whether to use an external power supply when the battery removed.