Laptop battery maintenance errors

September 5th, 2008

Misunderstanding [a] 100% charge, will blast

   Because of operational needs, Mr. Lin, the last urban want to buy a laptop computer. However, when he is buying heard some people say that when the notebook general in charge can only charge up to 99 percent, not sufficient to 100%, if necessary and sufficient to 100%, then the notebook computer batteries will be explosive. After hearing this, and Mr. Lin hesitate, in the end this laptop battery is an unsafe »

   The industry told reporters that such a popular market “is” pure rumor. Because of the laptop batteries will run the risk of explosion is very small, at most only a high fever caused by melting shell, rarely cause an explosion. A small number of laptop batteries was released by the explosion, mostly because the battery in the production of quality when the problems caused. Laptop battery charge is only 99 percent to 100 percent after not then, this is because the asus battery control circuit records and the status of the battery itself a deviation, the battery has not reached the record in the control circuit voltage, the control circuit has been In power, charging, but in fact has been full of batteries, encountered such problems can be corrected to resolve.

[2] compatible charger Mistakes can be used »

   Miss Lin because of his own carelessness caused the original laptop chargers lost. To save money, Miss Lin to give up the purchase of original Charger, to stop the purchase of compatible charger. But A3H battery over time, Miss Lin found that since the use of such compatible charger, laptop computers often can not or will not turn on a charge of the situation, after consideration, she can only buy original re-charger.

   The so-called compatible charger, and the phone is the “universal charger”, can be on different computer models of charge. However, due to various models of notebook computers voltage, current, interface is different, so notebook computers are generally not compatible charger, even though some prices may even than the original Charger much more expensive. Please see the full text of Pai sign licensing cell network

   Furthermore, even if the charger compatible interface with the same notebook computer interface, but if voltage and current values lower than the standard machines, machines at work may not receive adequate current, or will not turn on charge of the situation. If the M2 battery user is really for certain reasons not to purchase the original Charger, the reporter suggested users in the choice of chargers to make full and genuine choice of the same compatible charger.

[3] charger Mistakes do not have to cut off time on discharge

   Recently, Chen has just bought a laptop computer, in order to better maintenance batteries, Mr. Chen often available online on some laptop batteries and maintenance-related knowledge. In the inspection, Chen found that some sites do not have time to time that the battery discharge time can also guarantee the quality of its M2000 battery, but remember that Mr. Chen has Daogou Yuan said at the time of purchase if you want to maintain the correct battery, it should be every A discharge for a period of time. This allows Chen feel very puzzled, in the end should not know which side to believe.

   Mr Yang said the industry, the laptop battery capacity in use when the Reserve Power gradually diminish the problem is inevitable, but the absence of knowing the right to use, and speed up the aging of the battery is a very widespread problem. The correct way is to use every section of

Hewlett-Packard executives of the airborne Dopod CEO

September 4th, 2008

  Week 2 - According to informed sources, Taiwan HP Personal Systems Group general manager Chen Jinghong Dopod has been appointed as CEO, former head of Xu Weide remain COO. In this way, Dopod again in the knowledge of the outside world under the Lightning Huanshuai.

The new CEO took office

“Chen Jinghong in Dopod Shanghai headquarters has been at work, the company in charge of all work”, Huanshuai, Dopod internal personnel to be confirmed.

It is reported that on September 1, the Board formally appointed Chen Jinghong since September 1, 2008 has served as CEO of Wuhan Dopod Communications Limited (CEO). This is the HP Personal Systems Group General Manager of Greater China-Song Chong is switched HTC, the global business executive vice General Logistics Department, another joined Honda executives of Hewlett-Packard’s electronic enterprises.

Chen Jinghong is in Taiwan’s Chuang-Hewlett-Packard are the subordinates. Four and a half years ago, Song Chong is from Taiwan, general manager of HP’s personal systems across China China’s successor, general manager of HP’s Personal Systems, Chen Jinghong was only 37 years old, from the number of candidates able to compete successfully in succession Taiwan HP Personal Systems Group General Manager , Hewlett-Packard also hit Taiwan, the youngest-ever general manager of the record.

Chen Jinghong as the Dopod CEO and Song Chong is not clear how the association.

Laptop battery maintenance guide

September 4th, 2008

Who does not want their laptop batteries can be used more long, long time » Unfortunately, however, the laptop battery is a consumable items, have a limited life span. In all the important parts of the notebook, battery life is almost as soon as possible accessories, but the correct use of the appropriate charge and discharge, the proper storage, will be able to significantly extend the battery life of notebook computers.

First, to develop good habits.
          Want laptop battery longevity, must have a good beginning, the new notebook at the first start-up battery in general is 3 percent of the electricity, not at this time to use an external power source, the battery in the remainder of the exhaustion of power, until the shutdown , And then use an external power supply charge. To the battery charge after the exhaustion of power, charging time must be within 14 hours, repeatedly done three times in order to fully activate the toshiba battery, in order for future use and lay a sound foundation.

    Second, the battery life of the attention of several points.

    1. Use an external power supply in the time needed to win the battery? »

     Notebook computer batteries will be placed on a computer long-term, customers do not have to worry that will lead to shortened battery life. When the battery charge to 100%, the charge control chips (FET) will cease to charge the battery. Subsequently, the battery power will be used in the natural process of reducing. When electricity to 95 percent when, FET will be re-Some PA3285U-1BRS -charging, until the electricity back to 100 percent. Products that are designed to extend battery life of the natural, therefore maintaining placed in a notebook computer batteries in the battery will not be affected by the natural life.

        Of course, if the use of an external power supply, you can take down the battery, will not be affected. However, if the shutdown Below, not connected to an external power supply or batteries installed, then the laptop BIOS on the motherboard of the electricity supply batteries will not be added, leading to failure to maintain the system clock operation and maintenance of BIOS information. The computer system itself should have an external power supply (including DC transformer or laptop battery), the work can be continued so whether the computer is turned on or off, if the laptop battery is not installed, even if not using the computer, the computer should be And the DC external transformer (an external power source) connected. In addition, your data than you or even your notebook PA3191U-1BRS  are much more rare, sudden power not only to your notebook harm, irreparable data is also too late to the regret.

       2. Do not have long-term notebook, how to preserve battery »
       We will not have for some time using a laptop, the battery will be how to preserve the issue. Is full, save, save, or put End » Have been divergent.

        Whether full or shine, in fact, are not correct, put long-term preservation of photoelectric batteries will lose their activity and even lead to self-locking control circuit protection and no longer be able to use the full power will bring long-term preservation of the safety of hidden dangers, the most Save the ideal way is to discharge to about 40 percent and save, lithium PA3166U-1BRS  afraid of humid and high temperature, should be placed on a cool dry place preservation, but not too low temperature, or capacity will be greatly reduced, about 20 degrees Celsius around is the ideal Save temperature.

Laptop battery maintenance of several major errors!

September 4th, 2008

From the birth of the notebook computer that day, the debate on the battery has never stopped, because of persistent use of notebook computers is a very important technical indicators, and the decision of the laptop battery capacity of notebook computers this important indicator. In the end how can we maximize the use of a battery of the effect of extending the life of the battery? » Below, we will list several people we often vulnerable to the error: (without a note for now are the most commonly used lithium-ion battery)

       First, the first time the use of batteries, need to charge the three previous 12 hours »

This is totally not necessary. Because the notebook computers have improved power management circuits and charge management system, when the batteries reach saturation point, control circuit will automatically switch to the open circuit status, as long as it is on the line, the charge is not to say that the more time you can use the more long - The.

Second, in order to prevent the memory effect, only to run out, charging it »

Every time before recharging the battery discharge is not necessary and is harmful. Practice has proved that because of: the depth of the toshiba battery will discharge unnecessary to shorten battery life, propose that when the battery about 10 percent when used on a charge. Of course, when the batteries are still more than 30 percent of the electricity or at best not to charge, because the memory effect really exists.

3, insert AC, to the battery had to in order to prevent repeated charge and discharge it »

I will give you the proposal is: no! Of course, you can take the natural lithium-ion battery discharge to refute me, saying that the battery discharge naturally, if there is access to power will appear repeatedly charge and discharge the situation and reduce battery life. I give you “no” answer to the following reasons:

1. Notebooks now have the power control circuit design of this: When the PA3107U-1BRS  is 90% (such as HP’s most models) or 95 percent will be charged, and to achieve this through natural discharge capacity of the time for a thoughtful 2 , When cells do not have to idle for about a month to fully charge and discharge to maintain the capacity of the battery, this time you should be concerned about the battery should exercise the body and not be left idle after the re-charging.

2. Even if the battery “unfortunate” was once again charging, the loss will not be long without the PA3285U-1BRS  than the decline in the number of electricity.

3. Your data than you or even your laptop batteries are much more rare, sudden power not only to your notebook harm, irreparable data is also too late to the regret.

Sanyo battery proposed new plant will produce 100 million

September 3rd, 2008

      September 2, according to foreign reports, the world’s largest rechargeable battery maker - Sanyo Electric said it would build the factory, to expand used in notebook computers and other electronic products of  laptop battery production.

Sanyo Electric spokesman Kumiko Makino noted that in March 2011 to the year so far, this plant will boost PA3285U-1BRS battery can produce 43 percent to 100 million.

However, mentioned the specific amount of investment and factory construction timetable, Makino declined to disclose.

But media reports, Sanyo will be the highest spending 30 billion yen (277 million U.S. dollars contract) in Hyogo, Japan, the construction of the plant.

At this point, Sanyo joined the Sony (sony battery ) and Samsung, the (Samsung SDI) output ranks to meet the market demand for portable battery of electronic products increased.

Sony August 4 has pointed out that the next three years its spending 40 billion yen to expand production of lithium battery production. The world’s third largest rechargeable  PCGA-BP71  battery manufacturers - Samsung, the time has also said that in May, will invest 106.8 billion won (97 million U.S. dollars contract) to raise output.

Cell phone batteries to buy the basic knowledge

September 3rd, 2008

In general, cell phone batteries and nickel batteries divided into two lithium batteries.

     Nickel batteries into nickel cadmium batteries and nickel-hydrogen batteries. Nickel-cadmium batteries simple circuit, charging faster, can carry more current. Each section nickel-cadmium laptop battery composed by the two plates, a nickel is used to do, and the other is to do cadmium, the two metals in the batteries in a reversible reaction, it can be re-rechargeable batteries. It is the biggest characteristic of solid, long talk time, but its memory function, if not before discharge in charge of the case, the battery will not run out of the previous store, so that electricity can not be sufficient to saturation, and with the environment Harmful elements cadmium. As the weight of nickel-cadmium batteries, small storage capacity, high pollution, coupled with a memory effect, such batteries are gradually withdraw from the mainstream market.

     Nickel-metal hydride batteries do not contain cadmium metal, after the decomposition of the pollution of the environment is very small, is a safe and reliable, the battery is conducive to environmental protection. The energy storage density than the old nickel-cadmium batteries twice, the new nickel-cadmium batteries than 30% higher - «0% over the mobile phone talk time also be extended by 30 percent. However, the batteries and nickel-cadmium compaq battery, also have memory, but not so obvious. Nickel-hydrogen batteries larger storage capacity, the standby time is long, moderate prices, basically meet the needs of general users.

     In recent years light weight, energy, low self-discharge rate of lithium batteries Hengkong born in the Chinese market, has welcomed the broad masses of consumers. At present, the market’s total of three lithium batteries, lithium polymer batteries, lithium-ion batteries and lithium metal batteries. Which lithium metal batteries are the best, it has previously used nickel-cadmium, nickel-hydrogen batteries and the other two lithium batteries unparalleled advantages.

     Lithium metal Armada E500 battery  due to a failure to protect from the effects of fire since the Cu electrochemical system and a special structure, with excellent security, almost without any physical or electrical adverse conditions, including internal and external short circuit. The charge and discharge, overheating, such as extrusion. Lithium metal batteries no memory effect, self-discharge rate of one percent » 2% / month. In normal room temperature can save a year to retain 85 percent of capacity. The discharge of the battery level, to its discharge rate of 250 mA, the output voltage from 3.3 V charging the short period of time (10 minutes) dropped to 2.8 V, in the remaining 80 per cent of the discharge time within 2.8 V, then drop 2 V to the termination. This is undoubtedly beneficial for the mobile phone. This battery can provide continuous power supply to 2 A large current. The nickel-metal hydride and nickel cadmium batteries continuous talk time is only a «two hours, lithium metal battery capacity can be used for 350 hours without charge. Its energy and weight than when up to 900 watts / kg, is the lithium polymer Armada M700 battery  and lithium-ion batteries eight times, so as to avoid rechargeable battery cell phone to create the conditions. Lithium-ion battery is a high energy density of batteries, it does not memory, waiting a long time and can be intelligent and dedicated charger “talk” to charge the shortest time and the largest life-cycle and the largest capacity. (It has a very professional «Oh)

     Because of its smart, so it is also very picky, in a non-exclusive charger, lithium-ion battery power alone may not be adequate or less than most of the life cycle. Lithium-polymer battery and the basic performance similar to lithium-ion Armada V300 battery , it is worth noting that three of its lithium battery self-discharge rate is the highest, as much as 20% / month, so if someone would like to take lithium polymer battery, posing as lithium metal batteries Or lithium-ion battery, it just Cece its parameters will be able to identify the authenticity啦.

     New mobile phone endless, increasingly rapid faster updates. JS (unscrupulous merchants) which were mixed, MO argue authenticity. Over the phone for people to buy players when the number of Experience, for your consideration, so Business Notebook nc6000 battery  as not to purchase at hoodwinked.

The application of lithium-ion battery and prospects

September 3rd, 2008

Understand the principles of the lithium-ion battery, Below we look at the application of lithium-ion batteries:
        A lithium-ion laptop battery applications is the direction of electric vehicles. Into the 1980s, due to industrial development, vehicle production surge, air pollution component of 63 percent from fuel vehicles, in order to cure automobile exhaust on the environment caused by pollution, electric vehicles and electric vehicle battery research into the development of domestic and foreign car Development of the industry’s new hot spot, the current commercialization of electric vehicles is the main problem can not satisfy the requirements of battery performance, and high prices, volume, quality, and because of a lithium-ion battery than the high-energy, self-discharge of small, long cycle life, No memory effect and the environmental advantages of small and medium-term target of achieving power battery electric vehicles, one in July 1997, the U.S. pilot of the Nissan Altra EV with a song LA4LB (94Ah, 28.8V, 90WHkg-1, 30 kg ) Lithium-ion battery, and California in 1998 to market, in October 1997, France launched the first European to use a lithium-ion battery electric vehicles Peugeot 106EV. At present, the lithium-ion compaq battery research leading Japanese manufacturers Song, Germany and France Varta Saft, and the future, with higher energy lithium-ion polymer battery (PLIB) will be a long-term objective of the electric vehicle lithium-ion battery .
         The lithium-ion batteries for portable applications mainly electronic products such as cellular phones, notebook computers. At present, mobile phones and notebook computers two areas of liquid lithium-ion battery (LIB) use lithium-ion batteries account for the world market of 90%, 1999, the world’s mobile phones use LIB 42% batteries, laptop computers 67 % Use LIB batteries, it is estimated that by 2010, mobile phone and notebook computer batteries used in LIB batteries and battery PLIB will occupy 71 percent of the market. China by the end of 1999, has 46 million mobile phone users, accounting for four percent of the population, cell phone ownership ranked third in the world, to 2001, China has the phone number of the country’s population accounts for 10 percent, while developed countries Mobile phone users has reached 30 percent, It is evident that China has an enormous potential market for lithium-ion Armada E500 battery , 2001, the global lithium battery usage has reached 665 million, of which, Nokia, Motorola, Ericsson sold a total of three major manufacturers of lithium batteries 210000000 Only the Japanese lithium battery production, still accounts for more than 90 percent of the world, Japan Sanyo, Panasonic, Sony is the world’s top three manufacturers, said that with mobile phones and the popularity of notebook computers, lithium-ion batteries have been with us To achieve a zero distance, and we are increasingly concerned about is how to determine battery performance is good or bad, and how to maintain batteries, the following simple to talk about these two issues:
         Battery performance in general through the following areas to assess:
(1) Capacity: Capacity refers to discharge certain conditions, can be obtained from battery power, that is current on the points of time, generally used to express mAh or Ah, it has a direct impact on the most current of the battery and working hours.
(2) and the discharge of internal resistance: discharge of the Armada M700 battery  is in a discharge system, the voltage of its work to the smooth, high and low voltage platform, as well as the current discharge performance, it shows that cells with load capacity.
(3) storage performance: storage for a period of time, the battery due to certain factors that affect the performance of change, leading to the battery self-discharge, electrolyte leakage, short-circuit, and so on.
(4) cycle life: that in accordance with a battery charge and discharge system, to a certain degree of attenuation performance at the frequency of the cycle.
(5) and resistance to internal pressure of the charge: If the battery internal pressure can not balance or balance the pressure too high and will be open to limit device caused the battery discharge or leakage, leading to battery failure, if the pressure limiting device failure , There are likely to cause the battery shell cracking or explosion.
         The international community provides for very strict standards, a qualified lithium-ion batteries in safety performance should meet the following conditions:
(1) short-circuit: no fire, no explosion
(2) the charge: No fire, explosion
(3) hot-box test: no fire, no explosion (150 ℃ thermostat 10 min)
(4) Acupuncture: not the explosion (in Ф3 mm needle penetrating the Armada V300 battery )
(5) flat-panel impact: no fire, no explosion (10 kg weight from 1 m height Zaxiang batteries)
(6) burning: not the explosion (gas flame barbecue battery)
        To sum up, lithium-ion batteries since the beginning of industrialization, has been a trend of rapid development. The current lithium-ion batteries have been widely used in mobile communications, laptop computers, digital cameras and other portable products, at the same time as a power battery of basic conditions are ripe, is to electric bicycle, motorcycle and automobile, and other direction. Clearly, lithium-ion battery capacity and the market prospects are more extensive, according to the forecast of new materials online, the global demand for lithium batteries will maintain an annual average of around 10 percent growth rate, China’s lithium-ion battery demand will also maintain a rapid growth trend . So for many manufacturers of lithium ion Business Notebook nc6000 battery  of Health, to further improve its design and improve its performance and safety as soon as possible to design practical, high-quality products, earlier in the market will be able to occupy a leading position to seize business opportunities.

Lithium-ion battery charger smart hardware design

September 3rd, 2008

Lithium-ion batteries have higher energy than the weight and volume of energy, no memory effect, repeatedly using more often, long service life, prices are getting lower and lower. A good battery charger will have a longer life. C8051F310 MCU design of the smart charger, have a high accuracy, very good control of the size of the charge current and timely adjustment, and under the charge of the state of charging the judgement of time and promptly terminate the charge, in order to avoid battery Of the filling. 

     This article discusses the use of devices designed C8051F310 lithium-ion Pavilion dv9500 battery charger. Use a PWM PWM control of the software can be used rechargeable power supply to meet the different stages of the charge current requirements. Temperature sensors to monitor the battery temperature, and by AD conversion and related terms detection battery charge voltage and current, to determine at what stage the Inspiron 700m battery . The battery has a longer life, more effective charging method.

DC / DC devices can improve efficiency and extend battery life time

September 2nd, 2008

      In our digital, analog portable mobile products, or may not, lithium laptop battery  as a power machinery, power equipment, but these will not, inadvertently, is directly related to product quality and reputation Now I turn to my contacts To a number of devices, readers may be able to supply information:

        I used all of Taiwan’s IAT’s products, mainly A1012 , A1078 , A1148 , M6091 series, here I AT717 as an example to illustrate. We know that the past is what the regulator circuit?That is, the output voltage Vout need stability in the voltage (input must be greater than exports), the tubes are usually fever, fever showed a loss, a loss of the product in the portable device it is not very optimistic on the matter, so let Your product quickly Haoguang your laptop battery  so in such circumstances on a DC / DC buck components to manage power. According to the needs of load, load gave the number required, here is like the tap, put the number required. To the actual size of the load current situation and automatically adjusted. Below AT711_PDF to see more on that:

       In the experiment, I used 78 L03 LDO regulator and the power to do comparison, single-load tape drive, AT711 battery playback time is 78 L03 two times, is LDO1.5 times, if high-grade products used in the devices, Should be more to consider the adoption of these products.

       At the same time, use this component can also be a 1 ~ 5 V of the power supply, as long as the load of not more than 800 mA, the issue is not how to use and cost is not high.

Three ways increase the supply of silicon material

September 1st, 2008

Expansion is the fastest SGS, expanding from 2,200 tons to 8,500 tons, and all-silicon solar materials, in 2008, is the world’s largest solar grade silicon material suppliers.

From the 2009 and 2010 the situation, a veteran business Helmlock respectively to 9,500 tons and 14,000 tons of capacity for top laptop battery.

Physics of new technologies such as the planned production capacity has more than 10,000 tons.

In view of the silicon material prices rising, many companies began to use physical methods, and other new production of silicon material. Physical law is modified with the current mainstream of the law relative Siemens methods, not through chemical reactions, only through the physical changes from the demand for silicon solar cell raw materials. Improved compared with Siemens, the law does not require a physical gas steps to avoid an explosion of such risks, consume less power, lower cost, the plant needs less space ibm thinkpad battery.

Has announced plans to conduct a new production methods, including physical, fluidized bed, such as gas deposition, its cumulative production has more than 10,000 tons, as long as they can in the middle part of the release, the impact on the market are very large. Improved Siemens, CFB law and the physical power consumption and cost comparison, we can see that after the two methods than the current mainstream method greatly decreased power consumption, low-cost integrated by 30 percent to 40 percent, large-scale production ThinkPad T20 battery  After the expected cost control in 20 U.S. dollars / kg less obvious advantages.

The new plant, China’s planning capacity for more than 20,000 tons, Russia, Spain, and other planning capacity for more than 5,000 tons. Remove the original maker and the introduction of new technology enterprises, Siemens used the new law is also very large-scale plant, which, China’s top planning capacity. Planning are now known to the domestic production capacity has reached 25,260 tons, equivalent to about 2004 global production capacity ThinkPad T22 battery , the momentum is truly amazing.

China is not only dedicated to the production of silicon material, the international community into the new field of silicon material production there are still many countries, including the production base there before the United States and Japan, also has never been large-scale production of silicon material Spain, South Korea, France and Russia.

Considered the traditional large expansion, new plant construction and the use of new technologies, we believe that the supply of silicon material tense situation in early 2009 by the end of 2008 a certain ease ThinkPad T23 battery , prices from the current high level, down.