Archive for February, 2009

Feb 26 2009

How we can activate the “aging” laptop battery?

Published by admin under battery tips

The battery in use after a period of time will be “aging”.

A concrete manifestation of resistance are large, in charge when the voltage rise faster, so it is easy to charge control circuit has been judged to have been filled with a capacity of naturally are “down”. Relatively large because of the inspiron 6000 battery internal resistance, discharge when the voltage drop, fast, the system is very easy to mistakenly believe that voltage are not enough, lack of electricity (in fact there are no electric release). From the above description we can see that the battery is a vicious cycle of aging process, after the discovery of the working hours of battery out faster when you should exercise it, or else will be finished sooner or later.

In addition, a lot of lithium battery failure is a power-saving inspiron 9300 battery  bag core failure caused by mouse droppings out of a pot of soup. This phenomenon is unavoidable, because the battery core nature of every power-saving can not be fully consistent with a long time there is some quality to less aging, damage to the overall (after the series) the discharge curve. That section is easy, said bad batteries to full charge, discharge also finished first place, and this time the capacity of other batteries have not been fully utilized. Rechargeable batteries have a power / will not have put the whole think the battery monitoring circuit is full of / End of release. For example, when charging other batteries began charging close to full pressure, there is no section of bad batteries 4.30V may have reached even higher terminal voltage, leading to overcharge damage, while others are filling dissatisfaction. Editor’s Note: For battery internal damage to deal with batteries, “reported that Chinese computer education” in 2001 the first two have a very good article – “laptop battery DIY” is worth learning from. Interested in the guts and ability Friend will try my best to open the battery pack, trust in the help of a multimeter, you can quickly find the damaged batteries (abnormal voltage). If conditions permit, in accordance with the corresponding parameters of the replacement batteries can be qualified product.

The  inspiron 9400 battery charge and discharge

Rechargeable lithium-ion battery when the first way to fast charge constant current in the voltage reaches a certain value after the constant voltage mode to a slow charge. Laptop usually are not strictly constant-current charge of monitoring devices. Large load on the system when the charge current on the small, on the contrary, and the current from the AC power adapter power headroom decision. Clearly, the system will charge batteries with other components, such as CPU, hard drive, LCD, such as competition for energy. I tried to run side Superπ, while charging the way and found that the charge current in the 0.70 ~ 1.70A between the changes should not meet the lithium-ion dell 310-6321 charging requirements, so I am worried that such work will recharge the battery is damaged. Asked for instructions on IBM laptop not charging operation may be the reason.

Charging time in the boot, if the charge be able to choose the way, do not choose to fast charge mode (Express charge mode), to avoid premature dell 310-6322 “full.” There is a time of low battery power to prohibit the use of the highest CPU performance, so as to reduce the scramble for power. If the laptop’s CPU is to support the use of SpeedStep technology, it is best to install the driver (responsible manufacturers installed) to facilitate the regulation of performance. SpeedStep’s icon is a blue small flag, right click on it performance tuning options can occur. In the Windows XP system, SpeedStep procedure would just go wrong, this time can only depend on BIOS parameters modification or regulation of a number of brand-specific procedures, such as a tool for IBM laptop very powerful software.

Electric discharge of lithium or boot has been to allow the natural discharge better. Best not to use physical methods (resistor string type). Not saying that this will not do, only more dangerous, if the internal protection circuit did not work at all, the whole battery on the void, and the worst is probably the  dell d5318 explosion, of course, this is unlikely. Circuit is not dangerous risk is not possible, a number of big-name manufacturers have found that the design of the potential existence of risk factors and had the battery recall, as when cell phone battery will not hear the explosion.

Small knowledge: Generally speaking laptop battery protection circuit components are usually regulator block, control chips, insurance, such as temperature probes. Temperature protection are usually one-off, the internal fuse has a (some are 130 ℃ fuse), to monitor the work of the regulator block. If the charge-discharge process of anomaly, immediately there is a current through the temperature protectors to fuse fuse, the dell g5260 ’s internal circuitry at this time for the open circuit state, and not to resume. If you want to repair only the replacement of temperature protection, but such a temperature protection device in the market it is difficult to find.

Discharge is the discharge current as small as possible, operation is the first CPU deceleration, hard stop to the screen the most dark tune (or close the switch off), then do not run any program until the laptop automatically shuts down. The reason why is the emphasis on small-current discharge in order to prevent premature detection of laptop dell g5266  shortage.

87 responses so far

Feb 10 2009

Domestic rechargeable battery market is competitive

Published by admin under battery tips

China Battery Industry Association in Beijing today released the “2005 Ni-MH battery part of the market to buy the product quality like compared test results.” Test data shows that domestic brands PISEN rechargeable battery, the market competitiveness is better than similar foreign products.

The detection of Ni-MH battery comparison sony laptop battery industry associations from China, initiated is based on the current market NiMH batteries battery capacity of different sizes, different brands, battery high and low prices, consumers buy it difficult to choose conducted.

From the National Light Industry Quality Supervision and Testing Center of sony pcga-bp2nx testing results, this meeting to participate in testing of domestic brands in terms of performance indicators are close to or more than foreign brands; in cost-effective while significantly better than the foreign brands. One on the 5th (AA) battery is the highest price-performance ratio Shenzhen Electronics Co., Ltd. Tak first production license PISEN nickel hydrogen batteries, reached 134.8. Lowest Pan a-son ic, 47.8; on the 7th (AAA) battery cost is the highest ranking PISEN for 88.4, the lowest SONY, 24.8.

Battery Association, a Chinese official said the test results published purpose is to compare the quality of thesony pcga-bp2r detection and its cost-effective analysis, recommend to the Chinese consumers more cost-effective rechargeable batteries in China.

576 responses so far

Feb 08 2009

KDDI Will Introduce Fuel Cell working hours increased by 2.5 times

Published by admin under battery tips

According to the British IT news website theregister.co.uk reported that these two fuel cell phone is KDDI and Hitachi and Toshiba jointly developed. Left shows the modified model toshiba pa3383u-1brs handset. The reverse side of this phone is a normal lithium ion battery the same size methanol fuel cell. The fuel cell container can accommodate up to 99.5% compression ratio of 7 milliliters of methanol to provide the power to make the working hours of cell phone lithium-ion battery to achieve 2.5 times the cell phone.

Figure shows the Hitachi W32H phone. This phone also had the same conversion, but this time the fuel cell installed in this clamshell handset side the screen. Hitachi’s fuel cell is also used methanol, however, the compression ratio of methanol did not exceed 60%, fuel container can only accommodate 3 milliliters of liquid fuel.

The two fuel cell power output is 300 mW. KDDI will be October 4th at CEATEC in Japan on display at the meeting of these two fuel-cell phones, and these two handsets in the near future as the formal launch of the fuel cell phone. KDDI this fiscal year in March 31, 2006 The End, therefore, KDDI launched the fuel cell phone time is not far away.

832 responses so far

Feb 05 2009

Buffett’s BYD stake in its battery promising energy technologies

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September 29, a subsidiary of Buffett’s MidAmerican Energy (MidAmericanEnergy) and BYD common in Hong Kong announced that: According to the two sides signed a strategic investment and share option agreement, MidAmerican Energy Holdings will be the Hong Kong dollar per share 8 price, to subscribe for 225,000,000 shares BYD shares, accounting for about BYD After placing the 9.9 percent proportion of the shares. The transaction a total value of about 18 billion HK dollars (about 230 million U.S. dollars). Sino-US energy has also become the largest foreign shareholder of BYD.
Buffett’s previous investment in China is different from BYD is not a state-owned enterprises, that should not have the monopoly of resources. So why Buffett BYD will vote such a private enterprise? 
 BYD BYD Automobile ≠ 
For the outside world the impression that BYD is not clear, more people will be treated as a private car. But I want to say: Buffett is not chosen BYD auto business, or is not the car business now. 

BYD = BYD car? Absolutely not! Although BYD business will have three parts: secondary rechargeable batteries, automotive business, cell phone components and assembly operations. However, due to its rechargeable batteries in the field of strength, BYD recognized as the global rechargeable battery industry, the second leader.

Semi-annual report in 2008 showed: cell phone components and assembly services for the Sales revenue of 5.321 billion yuan; automotive business revenue of about 3.81 billion yuan; BYD secondary rechargeable battery business sales of 3.264 billion yuan, in which lithium batteries Product Sales revenue for the 2.138 billion yuan, nickel battery product sales revenue of 1.097 billion yuan.

Although the second rechargeable battery business in the lowest income, but the most profitable business it is the battery. Semi-annual report, according to BYD auto show: “Second Division performance rechargeable batteries 3.3686 billion yuan, mobile phone components and assembly services division of the performance of 3.64 billion, a performance-car division of 361 million yuan.”

Another important reason is the attitude of investors. This time is not Berkshire Hathaway (BerkshireHathawayInc.) direct investment in BYD, but Berkshire Hathaway’s 87.4% shareholding in Sino-US energy (MidAmericanEnergy) investment. 

First of all, we take a look at Sino-US energy is to eat what? China and the United States is engaged in energy production, transportation and delivery of fuel from the different types of sources (including coal, natural gas, geothermal, hydroelectric, nuclear, wind and biomass) energy, and over 6.9 million customers with electricity and natural gas service the company’s holding company.

According to common sense, such a corporation to pay more attention to the industry’s enterprises. Him all the way to come to China, not in order to buy a Chinese car company. Because if the simple from a technical point of view, China’s auto industry is still in its initial stage, the level of R & D away from the international advanced level there is still a considerable distance. (Although this is we do not want to admit, but have to face reality.)

Secondly, we come and listen to the Sino-US energy companies, Executive Director (Gallery Forum) David Sokol (DavidSokol) what has been said. Faced with the media, said David Sokol There are two main points: First, see BYD, BYD is because the Chinese and president of R & D capability and management team led by Wang Chuanfu. Second, the more they are interested in is BYD’s fast charging technology. As an energy company, BYD’s energy reserves in the Sino-US technology can be applied to other areas of energy, such as wind, solar aspects. Sino-US energy companies will be developed in cooperation with BYD to wind and solar power generation technology of fast charging batteries.

This shows that Sino-US energy companies, or not see Buffett BYD automotive technology, but energy technologies. As we all know: oil, coal and other conventional sources of energy to support the global automotive industry a hundred years of rapid development, as these energy reserves decline, the next hundred years or more long-term future needs to support new energy sources. Therefore, no one in the new field of energy have an advantage, no one can be into the Buffett or his company’s eye. 

BYD car space 

Despite the fact that I poured on BYD Automotive poured cold water, but this does not mean that there is no room for the development of BYD car.
JP Morgan think: Buffett’s company to buy BYD, equivalent to cast a huge vote of confidence. Buffett’s vote of confidence this will bring more tangible or intangible wealth.

Tangible wealth is the money of course. 1.8 billion dollar investment will be used for future development of BYD, in charge of technology, may also be used with rechargeable technology-related vehicles, such as electric vehicles.

Moreover, if the future development of BYD is true that Sino-US energy companies will be additional investment. David Sokol, president of MidAmerican Energy, said: If the conditions are ripe, we will be happy to increase its investment in BYD. David Sokol, this message sounds, and further strengthened the good impression the outside world of BYD. Or, even if the additional investment in Sino-US energy companies do not, there will be other institutional investors will favor BYD.

Intangible asset is goodwill is free publicity and advertising. This is also the most exciting BYD President Wang Chuanfu: In the past, if BYD BYD to sell motor vehicles in North America, who knows this brand? But in the future not the case. Indeed, reading “Buffett’s favor,” after the trademark BYD, its brand value will be increased dramatically. Into the United States or the European market will drop a lot more difficult.

Set aside these external factors, like BYD electric vehicle space. This is also the most would like to seize Wang Chuanfu a future market.

6 responses so far

Feb 02 2009

Professionals Commentary to lead price

Published by admin under battery tips

Re-dollar weakness and China lead battery the market rebounded strongly, with incentive-lun of lead in 1650 U.S. dollars all the way to the low buying prices rose above 1850 U.S. dollars, the maximum reach 1932 U.S. dollars, by the 60-day moving average of repression and suppression of profit-taking , Fallon lead to active range of 1750-1900 dollars. The recent steady decline in LME inventory report, has been reduced by a total of more than 1600 tons, the total inventory to return to 88,000 tons, and the write-off is still a substantial increase in receipts indicates that inventory will continue to decline, given a certain amount of lead-lun support force.

Last week, a strong lead rise price plunge down from week to week low of 16,800 yuan at 19,400 yuan a high improvement the weekend before the markets have been the performance of 500-600 million liters of water this week to close at 18,800 yuan a year, the market return premium 200 per state. Sharp reduction in the size of the rapid increases of lead sony digital camera battery in August to become the characteristics of the city.

Battery is used for all the major sectors of lead, they are more receptive of the price element in the 17000-18000 range, and the smelter will of the ship in 18500-19500 yuan interval, the two sides to consider the respective costs are based on the scope can bear. So smelter agreement or refusal to lower sales, higher up the lower reaches of corporate coldly watching, outside the disk crash skyrocketing price of lead has also added a destabilizing factor. Judging from the current situation to ease the stalemate on the downstream, the price regression in upstream and downstream of the interval tends to agree with the location and rate both within and outside the amendment to 10 days will be more rational.nikon digital camera battery .

288 responses so far

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