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Jan 25

15 inches high off the big screen with the most expensive inventory of 29999

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15 inches high off the big screen with the most expensive inventory of 29999

Objectively speaking, despite the long Spring Festival holiday, but it is not suitable for tourism, after all, most of the country are snow and ice, in addition to some of the characteristics of the city has winter, but it seems no one is willing to withstand the cold wind to fly mood. In addition to the cold weather outside is clearly the theme Toshiba PA2487UR battery

of the Spring Festival family reunion, after all, wandering in a foreign land for many friends who work, and only rarely have the time and New Year family get together, so I believe that most people will always be during the Spring Festival Select the house at home.

However, in the current era of entertainment, even if the house at home, people do not want to isolate and entertainment, especially those without a computer at work friends, Internet surfing, brush microblogging, game gaming, online movie seems to early has become part of their lives, so the editing point of view, for these Spring House home, while a strong entertainment appeal of friends, a large screen high with model seems to be the most appropriate. In addition, in order to ensure the safety of the books, we recommend that you carry genuine Windows 7 operating system.

Large-screen notebook: Lenovo Y570NT-ISE (T)

Price: 8350 yuan

Lenovo Y570NT-ISE (T) before a small notebook and Y are similar, but its roof has been replaced by a metal material, the black surface under the patchwork “hide” a point-like Obscure,Toshiba PA2522U battery

look great texture. No chrome shaft, lenovo logo more prominent;HP Pavilion G60 battery orange waist has become a small Y symbol, the tough body lines well outlined. Delicately screen, 15.6-inch LCD screen is very large, the best support 1366 × 768 resolution; this model also used the keyboard part of the popular chocolate-style, each key depression surfaces are slightly down, the fingers more fit ; independent numeric keypad is also convenient for users who often need data. Palm rest has a brushed,Toshiba PA3107U-1BAS battery

lavender has become very fashionable. Touchpad is very large, feel bad.

Configuration, the Lenovo Y570NT-ISE (T) high-end notebook equipped with Intel Core i7-2670QM processor, 2GB of video memory, NVIDIA GeForce GT 555M graphics card and Core Intel GMA graphics, 8GB DDR3 RAM, 750GB HDD and 32GB SSD solid-state hard drive. Built-in Blu-ray drive, integrated 2.0 megapixel high-sensitivity camera, Gigabit Ethernet, two USB 2.0 and two USB 3.0 ports, Six-card reader. With professional JBL sound. And pre-installed Windows 7 Home Basic (Home Basic Edition) operating system.

Editorial comment:

Comprehensive use this word to describe this association Y570NT-ISE (T) laptop very appropriate, as a high-end gaming entertainment platform, which has a Core i7 processor, 8GB memory,Dell Inspiron N5110 battery

and GT 555M graphics card, the game’s performance did not said. And with USB 3.0, SSD, Blu-ray drive such advanced equipment, allowing users to feel the full power of technology. 15.6-inch screen and JBl professional audio is a plus for many. Price will surely be higher than the average notebook, 8350 yuan, or value for money. Gamers interested in a lot of attention oh please.

Jan 24

Tablet PC is the next-generation mobile business PC representative.

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Tablet PC is the next-generation mobile business PC representative.

Tablet PC from Microsoft’s point of view the concept of products, Tablet PC is a no flip, no keyboard, small enough to fit into ladies handbags, but full-featured PC. Than the laptop, it addition to all of its functions, also supports handwriting input or voice input, mobility and portability are superior. This is the Tablet PC and laptop difference.
At the same time, in the major Tablet PC forums, the Tablet PC Tablet PC recommended list and column for the Tablet PC offer statistics also difficult for consumers to clearly and simply solve the problem of how to choose the Tablet PC.
So what good Tablet PC?Toshiba PA3107U-1BRS battery
Tablet PC brand is consistent with the advertising? Evaluation data tablet how to interpret this? Cheap and good Tablet PC How to choose?
As long as it comes to tablet PCs, consumers always have a lot of questions. Needless to say, since the hot-selling Apple iPad, the Tablet PC boom are not being stopped. And with the further unfolding of the mobile Internet applications, this portable tablet computer intelligent terminals are increasingly favored by the people, so the major forum Tablet PC is increasing its attention.
Reporters on the tablet which is better? Tablet PC How to choose and how to buy cost-effective Tablet PC these three issues, interviewed experts in the computer industry veteran Dr. Zhang.
Dr. Chang has been a well-known software company in the United States to do Toshiba PA3465U-1BRS battery
a senior engineer, a computer at home and abroad as well as the development of well known software. Dr. Chang tells us how to choose the key Tablet PC configuration and excellent after-sales service. Currently tablet PCs and laptops difference is that the Tablet PC in size than notebooks, but this may not be a major concern of consumers, the most important is the small size tablet can do large-capacity high-profile, business and entertainment integration.
A curious reporter asked, the market has this tablet recommend? Dr. Chang said with a smile, of course. Then they opened for us a Tablet PC – Tablet PC U.S. OYOpad (OYOpad tablet the official site: ). It looks gorgeous atmosphere, delicate fine.
According to Dr. Chang said that the tablet is the U.S. high-end brand in the digital sector has a very high degree of recommendation. “I used to get OYOpad and iPad colleagues compared the two have their own strengths,Toshiba PA3479U-1BRS battery
so there is called OYOpad ipad killer.” Dr. Chang may see the reporter’s doubts, then it is OYOpad do in-depth explanation.
Visual performance, OYOpad Tablet PC with 16 million low-temperature polysilicon TFT color display, picture quality was particularly brilliant. 1080P Full HD Format Support D1 30 frames per second hardware encoding. Visual effect is more clear and bright. In no way inferior to magnificent laptops commonly used high-definition screen. In addition, OYOpad Tablet PC is using the large 178-degree viewing angle, so that consumers in terms of different angles, are able to enjoy vivid and clear moving images. High-resolution TFT color is light out of the company N-trig touchscreen technology, making clear sharp images, the user browsing the web,Dell Inspiron 1545 battery
watch the video for true immersive cinematic experience.
Many consumers think that tablet size is small, so the ability to process information is not strong notebook computer, the system is running slow. U.S. OYOpad Tablet PC with Google Android 2.3 official system, the MULTI-TOUCH screen, large and high-performance systems to form a perfect combination. 3G network download speeds up to 7.2M / S, are called Tablet PC reviewer is currently the fastest Android tablet.
As a result of mature and stable official Google Android 2.3 system, OYOpad Tablet PC gaming performance is quite powerful, popular support for a large number of popular games, and laptop computers are different, OYOpad particularly true tablet PC gaming experience. Happy exciting “Fruit Ninja”, the operator simply a finger across the screen, you can like a ninja warrior-like dripping of cut various fruits; “angry bird”, the Green Paper Pig vivid,Asus EEE PC 900 battery lifelike … …
The professional qualifications of the expert-level tablet, the United States OYOpad Tablet PC (OYOpad tablet the official site: ) the advantages far only so much you want to experience the professional tablets brand differences, consumers need yourself, cost-effective to buy a Tablet PC, get superior handling experience is the real beginning.
The U.S. OYOpad Tablet PC sales in China during the event, from 7 inch to 10-inch Tablet PC Tablet PC, the price between ¥ 1100 to ¥ 1800, is a cost-effective tablet PCs, consumers now available online through the Tablet PC Order (OYOpad tablet the official site: ) way of purchase.
In addition,Sony VGP BPS3 battery this service in OYOpad Tablet PC and it can be said that their quality is the same class. It is understood that consumers can get OYOpad trial three days after the tablet PC, or return within 3 days, 7 days replacement; and enjoy a free one year warranty and three years free warranty labor costs.
Finally, Dr. Chang message to consumers, whether for business or high-level white-collar elite, are the mass market of consumers, we purchase during the Tablet PC, be sure to keep their eyes open, do not buy expensive just to buy right!

Jan 24

How to Activate the Old Laptop Battery

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Battery in use after a period of time will be senile. Specific performance is the internal resistance becomes larger when the two ends of the charging voltage rises faster, so it is easy to charge control circuit is judged to have been filled, the capacity has naturally decreased. Since the Latitude D600 Battery internal resistance is relatively large, the discharge voltage drop when a large, fast, easily mistaken for the system voltage is not enough power is low (in fact, there is no electrical discharge.) As can be seen from the above description the battery is a vicious cycle of aging process, the discovery of battery life when out faster than what it should be tempered, otherwise sooner or later end.

In addition, many lithium battery failure is the failure of the bag, resulting in a saving core, a bad mouse droppings a pot of soup. This phenomenon can not be avoided, because the battery every energy-saving nature of the core can not be completely consistent with a long time before there is some quality weakened the aging and damaged the whole (series after) the discharge curve. Section simply means that the bad batteries before charging full, discharge and first place finish, but this time the capacity of the other batteries have not been fully utilized. Core of a saving over charge / over discharge will not cause the battery monitoring circuit that is full / discharge finished. For example, when charging, the other VGP-BPS2 batteries near full charge pressure started when the section of bad batteries that may have reached the terminal voltage of 4.30V or higher, resulting in overcharge damage, while others are fully satisfied. Editor’s Note: For batteries inside the battery damage, the “China Computer Education” in 2001 2 has an excellent article – “laptop computer batteries DIY” worth learning from. Interest, courage and ability friends can try to open the battery pack, believe that with the help of multimeter, you can quickly find the damage to the batteries (voltage abnormality). If conditions allow, according to the corresponding parameters of batteries can replace the qualified product.

Battery charge and discharge

First, lithium-ion CANON Camera battery is charging way to fast charge constant current, the voltage reaches a certain value and then to constant voltage trickle charge. Laptop computers are often not strictly constant current charging control device. When the system load, the charging current to a small, contrary to large, the current from the AC power adapter power margin decision. Obviously, the system will charge batteries and other components, such as CPU, hard drive, LCD and other competing energy sources. I tried to run side Superπ, while charging, we found that the charge current between the change in the 0.70 ~ 1.70A, can not meet the requirements of lithium-ion rechargeable battery, so I worry about this kind of work when the battery charge will be damaged. Instructions on the requirements of IBM notebook computers do not operate when charging is probably the reason.

Charge at boot time, if we can select the PA3535U-1BAS battery charge mode, do not select the fast charge mode (Express charge mode), to avoid premature battery is full. There is a time of low battery prohibit the use of the highest CPU performance in order to reduce the power of the competition. If the laptop is using the CPU supports SpeedStep technology, it is best to install the driver (the vendor will be responsible installed) to facilitate the adjustment performance. SpeedStep program icon is a blue flags, right-click performance tuning options it can occur. In the Windows XP system, SpeedStep program will be problems, this time to modify BIOS parameters, or to rely on a number of brand-specific regulation programs, such as IBM laptop very powerful tools.

Discharge of lithium or always-on, let the natural discharge better. Best not to use physical methods (like resistors in series). Not to say that was not feasible, but relatively large risk, if the internal protection circuit did not work, then the battery to set aside, the worst is probably the VGP-BPS13A/B battery explosion, of course, this possibility is very small. Circuit hidden dangerous not impossible, some big companies have found that the design of potential risk factors, there is a battery recall, as when cell phone battery will not hear the explosion.

Tip: In general, the protection of laptop batteries are usually voltage circuit part block, control chip, insurance, and temperature probes. Temperature protection is usually one-off, the inside has a fuse (fuse some 130 ℃), used to monitor the Aspire 5315 Battery voltage regulator block work. If the charge-discharge process exceptions, immediately there will be a current through the thermal protection device, the fuse blows, the circuit inside the battery for the off state at this time, but can not be restored. If you want to repair only the replacement of the temperature protection, but such temperature protection is difficult to find in the market.

Discharge is the discharge current as small as possible, the operation is to let the CPU spin-down, hard stops and adjust the dark screen (or close off), then do not run any programs until the laptop automatically shut down. The emphasis on small-current discharge is to prevent the notebook computer VGP-BPS9 battery voltage detected early enough.

Jan 21

Media reports say U.S. troops captured bin laden recorded future planned attack notebook

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Media reports say U.S. troops captured bin laden recorded future planned attack notebook
U.S. officials said on Wednesday, by us troops killed in the al qaeda leader osama bin laden in Pakistan in the house, found his living a notebook, notes include the name global “terrorist tycoon” planning future attack plan.
According to Canon BP-2L12 Camcorder battery the report, an unnamed U.S. officials says to the reporter, in be captured bin laden inside the residence items, including a believed to belong to osama bin laden notebook, osama bin laden in the booklet recorded his future attacks launched the ideas and plans. These plans may just osama bin laden some of the ideas, no forming, also just short description.
Report says, and the notebook is not a diary, not recorded osama bin laden private things, no record he had engaged in activities or previous whereabouts.
Report says, because the U.S. military has in the blitz of seized computers, hard drive, DVD blanks, flash drive, and video devices, osama bin laden notebook is not taken seriously.
The national security advisor Tom. Abidan the Aaron (Tom Donilon) had evaluation said, the United States through the captured bin laden items about him to a large number of information, equivalent to that of a “small library”.

Jan 19

Stock Picks: HP, Monsanto, Sirius XM, Visa

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Stock Picks: HP, Monsanto, Sirius XM, Visa
Wall Street analyst opinions on stocks making headlines in Monday’s market
In a note, Wu said he anticipated that the world’s largest maker of personal computers and printers will post results at the upper end of management’s most recent guidance when it reports fiscal second quarter results after the close of trading May 18, meeting or beating the consensus view of Wall Street analysts.
“We believe HPQ will likely hit the upper-end of its guidance, meaning a meet or beat vs. consensus estimates of $29.8 billion in revenue and $1.05 in EPS [earnings per share],” compared with his own estimates of $29.6 billion in revenue and $1.05 in EPS, the analyst said. “Our conviction stems from constructive data points we have been picking up from our supply chain checks as well as positive commentary” from the company’s technology peers, including Apple Inc. (AAPL),HP Probook 4520S battery Intel Corp. (INTC), Cisco Systems Inc. (CSCO), Ingram Micro Inc. (IM), Synnex Corp. (SNX), and Best Buy Co. Inc. (BBY).
Wu said he anticipates the company will “at least back and potentially raise” its fiscal 2010 (ending October) guidance of $121 billion to $122.5 billion in revenue and $4.37 to $4.44 in EPS, vs. the Wall Street consensus view of $123 billion and $4.45, and his own forecast of $122 billion and $4.37. He said he was factoring “currency headwinds,” the company’s acquisition of 3Com, Dell Latitude D600 battery and his contact with suppliers and customers indicating an improved tone for the company’s hardware segments into his forecast.
“We see HPQ as a fairly defensive play with its recurring profit streams, broad portfolio and geographic exposure, and room for operating leverage,” Wu said.
Monsanto Co.: UBS Securities analyst Don Carson kept a buy rating on shares of Monsanto Co. (MON), the world’s biggest seed company, on May 17. He lowered a price target on the shares to $83 from $86.HP AC Adapter
In a note, Carson said he was reducing estimates to reflect “the prospect of no rebound” in prices for the company’s Roundup broad-spectrum herbicide. Carson said the barrier to price improvement “is due more to competition from multinationals” like Syngenta AG (SYNN) and Dow Chemical Co. (DOW) than to excess inventories of Chinese-produces generic versions of the herbicide.
Carson said he expects Monsanto’s gross profit to remain in the $550 million range, reducing his EPS estimates for fiscal 2010 (ending August) to $3.00 from $3.10, for fiscal 2011 to $3.65 from $3.95, and for fiscal 2012 to $4.40 from $4.85.

Jan 18

HP Intensifies the Mainframe Battle

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HP Intensifies the Mainframe Battle
Hewlett-Packard executives say businesses can cut operating costs by 70% if they switch from traditional mainframes to HP Integrity servers
Herbert Zwenger, Asia-Pacific and Japan vice president and general manager of business critical systems, said mainframe customers spent a large portion of their data center budget in licensing, supporting and maintaining a mainframe environment.
Speaking at a conference here Thursday to champion the company’s “mainframe alternative” strategy, Zwenger said HP has helped such customers cut operating costs by up to 70 percent and reduce energy consumption by up to 46 percent, by migrating to the vendor’s Integrity servers.
HP’s aggressive bid for the mainframe market stems from CEO Mark Hurd who has never been coy about the company’s plan to target and convince mainframe customers to migrate, having once said that he was “not a big fan of mainframes”.HP Probook 4520S battery
Satoshi Kitamoto, Japan head of mainframe alternative business at HP’s technology solutions group, noted that mainframes were first introduced two to three decades ago as the best platform to support mission-critical processes. Today, however, users can no longer accelerate their business effectively because of mainframes, Kitamoto said.
The advent of the Internet has changed the way businesses operate, he noted, and companies today must have the flexibility and agility to react quickly to competitive pressures. The ability to do so is proving to be a challenge for mainframe customers, he said.
Kang Won Moo, HP’s Asia-Pacific and Japan sales director for business critical systems, added that mainframe applications and software upgrades are high and costly to maintain.
In addition, new applications developed by independent software vendors (ISVs) are mostly made available on industry-standard platforms,Canon NP-E3 battery not mainframes, Kang said. As a result, proprietary mainframe users have limited access to modern software, he said.
Still alive and kicking
In a previous report, however, IBM told ZDNet Asia that it is seeing a re-emergence of mainframes in the region as companies look for ways to increase space and power efficiency in their data centers. The company also noted that more ISVs now support their applications on the platform.
In fact, Big Blue said it invested tens of millions of dollars over the past couple of years on programs to train customers, tweak their software and help companies migrate to the platform.
IBM has been aggressively Dell battery Inspiron 1545 promoting its System z mainframes and specialty engines such as Integrated Facility for Linux, since end-2005, Erica Gadjuli, Gartner’s principal research analyst for server markets, said in an e-mail interview.
Such efforts from mainframe vendors, Gadjuli said, were the primary reason why revenues for the Asia-Pacific mainframe market, which has always been niche and project-driven, increased by 42 percent in 2007.
One of the remaining dominant mainframe providers, IBM continues to introduce new features and functions to address legacy and new workloads, added Jennifer Wu, research vice president of server markets at Gartner.
“Many of the new features are aimed at improving the ability to handle workloads that had not been traditional strengths of the mainframe, such as Java, business intelligence (BI) and data warehousing,” Wu told ZDNet Asia in an e-mail.
Gadjuli noted that the banking and public sectors were the two mainstay verticals driving the Asia-Pacific mainframe market in the past couple of years.
However, growth for the mainframe market likely slowed in 2008 due to budget delays, revision on major spending during the Beijing Olympics, and the credit crisis, she said.

Oct 24

Battery Charging Methods

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Fast Charge Technology
   
First, the pulse charging method

This charging method is not only to follow the inherent battery charge acceptance rate, but also can improve the battery charge acceptance rate, thus breaking the battery charge acceptance curve index limit, which is the theory of battery charging new development.

The first is to use pulse charging pulse current to charge the battery, then let the Pavilion ZV6000 battery stopped charging for some time, and so on. Charging pulse to the battery is fully charged, the battery after the interim period so that the chemical reaction of oxygen and hydrogen compounds was time to re-absorbed, so that ohmic polarization and concentration polarization naturally be eliminated, thereby reducing the battery’s internal pressure so that the next round of constant current charging to more smoothly, so that the battery can absorb more power. Intermittent pulses to the battery have sufficient response time, reducing the analysis of gas and improve the battery charge current acceptance rate.
   
Two, Reflex fast charging method

This technique is a U.S. patented technology, which is mainly targeted at the face of the nickel-cadmium rechargeable batteries. Since it uses a new type of charge, the problem of nickel-cadmium EliteBook 8530p battery memory effect, therefore, greatly reduce the battery’s fast charge time. Lead-acid battery charging methods and charging status of the detection method and nickel-cadmium batteries are very different, but you can learn from each other between them.
   
Third, change the current intermittent charging method
This charging method is based on constant current charging and pulse charging basis. Characterized by the constant current charging section to change the current intermittent charging pressure limiting segment. Pre-charging current of each segment with variable intermittent charging method, to ensure increased charge current, charge capacity is overwhelming. Late charge using constant voltage charging section, to obtain the amount of overcharge, the battery is restored to full charge state. By intermittent stop charging so the Inspiron Mini 9 battery by the chemical reaction of oxygen and hydrogen compounds have time to be re-absorbed, so that ohmic polarization and concentration polarization naturally be eliminated, thereby reducing the battery’s internal pressure, so that the next round The constant current charging to more smoothly, so that the battery can absorb more power.
   
4, variable intermittent voltage charging method

Changing the current intermittent charging method has been proposed on the basis of variable voltage intermittent charging method. Intermittent charging method with alternating current difference is not the first phase of the intermittent constant current, constant but intermittent.
   
Fifth, variable voltage variable intermittent positive and negative zero-current pulse wave-fast charging method

Integrated pulse charging method, ReflexTM fast charging method, variable intermittent charging method and change the current-voltage EliteBook 6930P Battery charging method of the advantages of intermittent, variable voltage alternating current wave-pulse interval of plus or minus zero charge method to develop applications quickly. Pulse charging circuit to control charging method there are two:

1) variable pulse current amplitude, and PWM (driving charge and discharge switch) signal frequency is fixed;
2) constant amplitude current pulses, PWM signal frequency is adjustable.
   
Conventional charging method

Conventional charging system is based on the 1940 internationally recognized rule of thumb design. The most famous is the “amp-hour rule”: the number of amps charge current, Presario CQ70 Battery to be charged shall not exceed the number of hours of security. In fact, the speed of conventional rechargeable battery in the charging process is the temperature rise and gas production is limited. This phenomenon is necessary for the shortest battery charging time is important.

In general, the conventional charging the following three kinds:
   
A constant current charging method
Constant current charging method is used to adjust the output voltage of the charging device or change the method of series resistance with the battery, the charging current to maintain the same intensity charging method. Control method is simple, but because of the acceptability of the current capacity of the battery with the charging process to gradually decline, to the late charge, the charge current used for electrolysis of water to produce gas, so that venting had very, therefore, often used in stage charging method.
2 stage charging method
This method includes two stages of three-stage charging method and charging method.
1) two-stage method using constant current and constant EliteBook 8530P Battery voltage charging method combining fast. First, the constant current charging to a predetermined voltage value, then, to complete the remaining constant voltage charging. General two-stage conversion of the voltage is between the second phase of constant voltage.
2) three-stage charging method at the beginning and end of charge when using constant current charge, in the middle with a constant voltage charging. When the current decay to a predetermined value, the second phase transition to the third stage. This method can be outlet to at least minus, but as a quick charge method, subject to certain restrictions.
   
3 constant voltage charging method

Charging dell laptop battery power supply voltage at full charging time constant values, with the battery terminal voltage gradually increased, the current gradually decreased. Compared with the constant current charging, the charging process closer to the optimum charging curve. Since the initial battery charge low electromotive force, charging current is large, with the charge of conduct, the current will gradually decrease, therefore, only simple control system.

This charging method electrolysis very little water to avoid battery overcharge. But early in the charging current is too large, a significant impact on battery life, and easy to bend the battery plates, causing the battery scrap.

In view of this shortcoming, constant voltage charging is rarely used, only in the charging voltage is low and the use of large currents. For example, the car is running, the IBM laptop battery is charging to constant voltage charging method.

Oct 11

Proper use of rechargeable batteries fast charge or slow charge

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Charge from the charging current to the points, a fast charge and trickle charge the difference. From the charging point of view, there is constant current charging and pulse charging the difference.
Many people have this problem, what is a good fast charge Sony VGP-BPS9/S battery or slow charge is good. Then we take a look at what is fast charge and what is slow charge.

Battery with a nominal capacity of 1C, the 0.1-0.2C charging current of the slow charge,> 0.2C for fast charge,> 0.8C for ultra-fast charging, <= 0.05C of the trickle charge is . With a 1400MAH Ni-MH battery, for example, the charge current between the 140MA-280MA IBM Thinkpad r30 Battery for the slow charge, while the same 280MA charging current, for a while is fast 700MAH battery charge. Thus, the fast charge or slow charge is a relative concept, and the capacity of the battery itself has great relevance.

Go back to the previous question, what is a good fast or slow is good? ! In fact, this is no fixed answer. Many people think that slow is good, that fast charging will damage the Sony VGP-BPS5 battery. Fast charging will damage the battery it? The answer is yes, but not because many people think of “high current charging damage the battery.” Large current is at best an accomplice, the real reason is heat, because heat caused by high current. High temperature on the battery life has a great impact. So a large current is not terrible, headache is how to solve the heat problem.

Here, it is necessary to introduce constant current charging and pulse charging concept. When filling in the slow, basically all the chargers are constant current charging method used, so the circuit design is relatively simple, easy to implement. And because the charge current in the slow range, and will not cause the CANON BP-522 battery overheating. To charge with a fast current issues, and then use the constant current mode, no doubt unable to avoid battery overheating problem, so the constant current method was abandoned. Instead, pulse, can be seen from the waveform, the charge current output is not linear, but the sine wave. Peak, the current maximum, and then immediately into the trough, almost no current. This design is intended to allow the battery to have a recovery time, thus reducing the heat generated by high current, the Dell XPS M1210 battery heat control at an acceptable level. Now see the hundreds of dollars on the market so fast charger, basically using this method. And such a voltage charger is also used to determine the method or the delta slope to determine the method to determine whether the battery is full, when full it automatically transferred to the trickle charge to avoid a large current over time damage the battery. Relatively well-known example is the recommendation of friends who each fresh cow KN5060 charger. The battery chargers are in the major electronic markets, which can be between the 65-70 win, work is not very sophisticated, but the results are good, are highly cost-effective products.

Pulse mode to produce quick charger is a good solution, UK battery blog but for some abnormal requirements, such as 1 hour quick charger, this time to use ultra-high-speed greater than 1C charge current for charging, pulse method it insufficient. Now the international use of the basic pulse method are added to the combination of polarization response. Simply put, that is based on the pulse method, when the upper half of a sine wave is completed, insert a short negative voltage of the cosine wave is too large to offset the enormous heat generated current (polarization response) to the battery heat under control. This method is generally only in more specialized chargers, such as model aircraft used by professional players on the Acer travelmate 6000 battery charger used. Such chargers are often can be done with the 2C-3C of the current battery charge.

Oct 04

How to maintain the battery, the battery maintenance misunderstanding

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Battery maintenance has been a hot topic for laptop users, but many errors in fact and there’s the final analysis, comes from two aspects, one is “thinking does not keep up with the nickel-metal hydride batteries to lithium batteries of change”, the other a more funny, from the phone, because the phone is the first contact most users re-charge the battery using the equipment, so will be granted an extension of the phone to a laptop computer habits body.

Misunderstanding: bought laptop need to repeatedly charge and discharge times to activate the Presario CQ70 Battery.

Unless you buy a laptop is more than one year of product inventory, otherwise it would not have to do this, because now the battery cell when the factory had already been activated, and the batteries of laptop batteries in the package as when they go through a rather to activate the test, so you get the hand of the battery, had already been activated, and do three charge-discharge process is unnecessary to increase battery consumption.

Myth: The first charge must be sufficient enough for 12 hours

This early who do not have the battery control circuit model is applicable to nickel-metal hydride batteries, but for now has a smart charge and discharge control circuit of notebook Presario C700 Battery, it was a joke, when the laptop battery is fully charged, the charging current will be automatically cut off , even if you continue to charge 120 hours, the state would not be any change, in general, even the slowest charging machine, six hours is completely filled, the rest of the “charge” is just a waste of their time. Instead, it should get a new machine when the first rechargeable battery shine.

Myth: The battery requires periodic calibration, complete charge and discharge once a month.

Strong memory effect for nickel-metal hydride battery, which is an essential task, but for the lithium battery, the cycle is too frequent, and lithium, although not completely eliminate the memory effect, but has greatly reduced the memory effect, if you use the battery is frequently, then you should discharge the battery to the relatively low (about 10 ~ 15%) recharge, but if the discharge to the open machines are not even (0 ~ 1%), belongs to the lithium batteries have a greater depth of injury discharge , in general, once every two months this operation on it. If you rarely use the battery, then every 3 months as long as the first such operation on it.

Myth: correction can enhance the battery capacity

The so-called correction, is when the Presario V3000 Battery ‘s actual capacity and the capacity control circuit records in a different time, a depth of battery charge and discharge operation, the control circuit to record, so close to the battery of the actual situation, which is a manifestation of the true capacity of Dianchi operations rather than enhance the capacity factor here is the battery’s actual capacity, if the battery’s actual capacity than the capacity of the control circuit to record high, correction can make the battery appear to increase the capacity, if the battery’s actual capacity than the control circuit the capacity to record low, the correction will reduce the battery capacity seems, this is why many people are debating the reasons for correction effect, remember that the true correction is to make the battery capacity is presented, eliminating between battery and control circuit bias, as demonstrated by the capacity will increase or decrease, this is the state of the battery itself, rather than determined by your correction. Correction is likely because the battery discharge when the depth of the injury, but greatly reduced capacity.

Myth: You can also use compatible chargers

Notebook power Acer laptop battery pack consumption is much larger than cell phones, the most extreme cases, the power required to charge the battery while the machine running at full speed and meet the required power supply, laptop charger is generally not compatible, because each type of voltage, current, or even interfaces are different, can be common in a variety of notebook “compatible charger” is likely more expensive than the original charger, even if the same interface, if the voltage and current below the nominal value of the machine, the machine working at full speed when the battery may not be able to obtain sufficient charge current, which is a great damage to the battery. If the voltage and current much less than the nominal value, and even found it impossible to boot or will boot but will not charge, so the best time to choose the power to choose, and first wife the same, I can not find it, please note that a certain voltage and current to comply with the nominal value of the machine, the interface with the plant’s different products are generally the same, but the voltage and current may be different, be sure to pay attention to this point!

Myth: battery needs to be charged (or put photovoltaic) preserved

Whether full or shine, in fact, are not correct, put long-term preservation photoelectric Apple laptop batteries will lose their activity, and even lead to the control circuit protection self-locking and can not re-use, full power will bring long-term preservation security risks, the best method of preservation is to discharge to 40% and then save, fear of moisture and high temperature lithium battery, it should be placed in a cool dry place, but the temperature not too low, otherwise the capacity will be greatly reduced, about 20 degrees Celsius is the ideal storage temperature.

Seven Mistakes: battery die, you can also change their own batteries

Many people change the battery is so deadly, some manufacturers seem to do so long expected, and many brands of laptop batteries are designed with self-locking function, once the batteries out of the control circuit, the circuit enters the self-locking state, Only the use of specific tools in order to unlock, before the control circuit will not work, that is the same scrap batteries, Toshiba  laptop batteries are not free to change the batteries, you have to change batteries if not, please remember to find a special battery maintenance company to do the job, he spent trouble for small, that effort also failed, after the frustration and depression is the most miserable.

Myth Eight: After 99% has less than 100% charge, charge and will continue to bomb burst ®

Laptop battery is almost no chance of explosion, which led up to the issue of shell melting heat, but rarely cause fire was reported a few incidents, the fact is, when the production process bad, cause a short circuit in the use of lead, even if this Most of all kinds will be short-circuit protection circuit disconnects the battery circuit in greater damage will not, except in the protection of the circuit before the batteries short-circuit (before the COMPAQ laptop batteries caused the explosion is such a time should be), so I come in contact with things in the notebook 3 years ago, only saw two cases. Instead, this sort of thing a lot of mobile phones, after all, or the battery quality problems, the phone has a large number of low-quality assembly of the battery, and laptop computers almost never sold such a battery, because there is no model which has a large enough to warrant the produce compatible battery.

The reason why, after charging to 99% less than 100%, often because the hp compaq 6515b battery control circuit of the records and the deviation of the state of the battery itself, the battery has not reached the record of the voltage control circuit, so the charge control circuit has power, in fact, battery already full, this problem can usually be resolved by the correction, but even without correction has nothing to do, because most of the charging circuit will not be filled in automatically after a long time off, even intelligent automatic refresh 99% of the current record is 100 %, even if the design has been kept a fool, but also because the current is very small at this time without causing harm.

The current laptop batteries are basically the temperature detection circuit, when the battery temperature is too high, the control circuit disconnects the battery would most likely force to prevent further temperature rise, so explosive charge to such a situation occurred in the notebook computer battery no less likely in the lottery jackpot.

No matter how scientific maintenance measures, the battery will always be aging, like how the magic of cosmetics and beauty care becomes an old woman can not stop, just slow it up, the only way to avoid aging of the battery is not used (so many people Choose the battery down), but this laptop but have lost that sense of … … the battery is always used as the length of time and aging, is actually a consumable, for almost all manufacturers of notebook computers regardless of the host how long the warranty, the battery usually only guarantee for one year.

If you care to do is put in place to be used once a week the digital camera battery is approximately one year after the remains in 60% to 70% capacity, probably my own battery is the case, if you really think that looked increasingly haggard battery is a kind of torture for you, the best method is to take down without, and pray do not kick or power plugs, or is it to buy one as a backup, as long as the battery and notebook in order to bring value and fun enough, I think they The sacrifice is worth it.

Oct 04

Mobile phone battery, carefully choose, but also take good care of

By adminComments Off

In recent years. Explosion heard the news about mobile phones, from Beijing to Shenzhen, from China to the United States, with people gazing into a cell phone actually will not say when the bomb attack. In this regard, a mobile sales staff that consumers buy cell phone battery must be carefully chosen, and to treat it.

Best buy original battery

Mobile phone market today are basically used lithium INSPIRON 700M battery, which is characterized by small size, light weight, when compared with the previous capacity of nickel-cadmium batteries and nickel-metal hydride battery long standby talk time.

General. Original purchase cell phone has a supporting, generally purchase should also buy original battery. If you want to purchase, go to stores like best place to buy a good reputation to protect quality. It should be noted, even matching the original battery is best to identify themselves look genuine. Because some unscrupulous businesses in order to reap huge profits, the use of “switching” approach, from the genuine mobile phone sales package after removing the original battery sold separately, but mixed with non-original battery in the box shoddy.

First, identify whether the original battery to start from the label to see whether the font from its print flash, color is uniform. Font sizes, printing counterfeit batteries mostly vague. Second, counterfeit battery shell mold as the original product with a difference, to release the cell phone Latitude E6500 Battery pack will not fit some places. Third, the color of the battery’s metal contacts may be different. Original battery metal contacts color darker, counterfeit battery metal contacts lighter. Fourth, the original battery’s metal contacts are not reflective. This can be seen in the light, the counterfeit batteries with a high degree of reflection. Fifth, the original battery’s metal contacts there is no obvious pattern of squares and squares of the relatively small size, the battery’s metal contacts with a fake obvious pattern of squares, and squares relatively large size, in the light obviously it can be observed.

New batteries need to activate?

Some people may tell you to buy a new battery pack that needs three complete charge to activate it, and the first charge to more than 12 hours. In fact. This argument in the era of lithium may no longer applies. Because the new battery has been at the factory by the factory that has been charged, and activated by the factory has been done before. Of course, if the lithium EliteBook 8730W Battery on hold for a long time to re-enable, the need for a full charge, the charge light goes out to Chong will be enough.

One problem associated with it is that lithium is to ensure that “exhausted and full of” principle? A cell phone battery R & D personnel, said the lithium battery memory effect is minimal, almost negligible. In daily use, no need to run out and then filled.

Usually how to charge?

If the phone comes with battery charger, usually enrich my knowledge base should be used. Although time-consuming than direct charging cradle (Travel charger) to be long, but it would be more adequate TouchSmart tx2 battery charge. Second, the charge is best to first turn off the phone. Because in the process of charging the cell phone circuit boards will be fever, this time if a call could cause an instant increase of current, the phone’s internal parts damage.

So. Charging time is longer than the battery more durable it? This view is not correct. Because the battery’s capacity is certain, full protection after the charger will automatically disconnect the circuit, but still have a very small trickle. Therefore, the correct charge time should be sufficient light from red to green after one hour the best, so not only adequate, it will not damage the battery.

What better batteries?

Perhaps you keep a daily text message, or you like playing games, you all day for their phones to worry about where the charge; Or, you can see a lot about the explosion of cell phone coverage, often for their own security concerns. So, what better VGP-BPS9 battery options?

Mobile phone battery R & D staff told the author, in the continuing efforts of researchers, there will be more and more and better choices for consumers of mobile phone batteries. The near term, polymer battery will likely replace the existing liquid lithium batteries. He said that now the widespread use of lithium batteries is actually a liquid lithium battery. The resulting explosion is the phenomenon of liquid lithium batteries. Liquid lithium aluminum shell is hard, when people call charging too long or too long a time, the battery will produce a lot of gas, the gas accumulation to a certain extent could cause an explosion. The new lithium polymer battery is also a fact. However, the internal liquid is no longer, but rather solid polymer, has become a soft shell, so to solve the explosion problem. In addition, in the same volume of cases, the liquid lithium PA3383U-1BRS battery standby time than the longer 5% to 20%.

Well, now polymer battery is already applied it? The researchers said, about the recent new production mobile phone use Sancheng polymer battery, the other still uses liquid lithium batteries. Estimates will continue to use liquid lithium five or six years time, then it will be widespread use of polymer batteries.

But. Polymer battery explosion only solve this – security issues, the standby time is still not a qualitative leap. The researchers revealed that a number of years the mobile phone may use fuel cells, hydrogen and oxygen as raw material of this battery, environmentally friendly and safe, and a standby time of more than ten times higher than the lithium laptop batteries.

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