hn battery

The article comes from http://www.mylaptopbattery.co.uk/blog/2009/08/30/how-to-play-laptop-battery-greatest-potential/

 Activation of a new battery
Does not require the laptop battery for 10 hours of rechargeable battery to activate the activity of the normal charge-discharge method for activation.
The proposed method: According to the available information suggests that the activation of cell work should be completed at the factory, and DELL laptop battery factory with a capacity of some natural wear and tear in order to avoid damaging the battery. Activation of the battery should be in no circumstances to protect the circuit can be with its own lithium battery circuit protection circuit, the purpose of this piece of the circuit is to avoid excessive battery charge and discharge, generally filled with the battery after charging when the indicator light off , the battery can not be recharged into the electricity, and then you then plug the power plug to recharge the battery in the face of what use? Available from the battery can be seen on the status of the battery have any charge, another teaches you a simple way to be able to determine whether there during the battery charging, battery charging, when the phenomenon will have a fever, when the battery is full after one hour (power plug does not pull), you go try the battery to see if the battery is still warm not hot? The result is definitely cold, because the battery is not charging and discharging state certainly does not heat. Notebook makers at the factory will propose that a new battery for more than 10 hours. The author of this opinion, should be taken into account that some notebook manufacturers a new user in the new battery charge when not fully grasp the skills, simply so that they can directly charge 10 hours, so this should be the business of expediency dell FK890 battery,dell GK479 battery.
How to correctly charge
Most people said that the unnecessary use automatic shutdown and then charge, and do not arbitrarily charge. Are generally used when the battery needs charging when the computer prompted further charge, of course, prompts the time can be set, the default is to 3%.
I proposed approach with the majority of the people is the same. In fact, regardless of laptop use nickel-metal hydride or lithium batteries, these batteries are have a memory effect, and nickel-metal hydride batteries with memory effect is very obvious, but equally there will be lithium memory effect, but its memory effect smaller than the nickel-metal hydride Bale . There is no memory effect on lithium to say, only exaggerated and irresponsible business conduct in advertising, is totally misleading. Well, since the battery has a memory effect, it should be noted when charging point, as far as possible and then run out of charge, but do not have to deliberately say must use the computer to automatically shut down, so that although there is no harm in using them (because the laptop battery has a charge discharge protection and automatic shutdown in general has not yet reached notebook battery discharge protection standards), but you do not feel so tired? In fact, less than 3% of the charge in this way is very good, memories will certainly be the effect, compared to natural wear and tear, it should be nothing. As for the charge that they want to charge on the point of view, the author is completely disagree, and have already said, whether laptop battery nickel-metal hydride or lithium, which has a memory effect, if in this way then the battery life will be shortened dell 3R305 battery,dell Inspiron 2500 battery.
Unplug the battery when the external power supply is
Most people use an external power source, will the battery removed, only a few use an external power supply when the battery is placed above, but their brands are used in several international brand.
In fact, if the battery is removed, the conflict focused on the use of an external power supply when the battery is charging to the issue. We should know that the number of charging and discharging the battery life is directly related to the general lithium battery set the number of charging and discharging are fixed number of charge cycles only 400-600 times, specially modified products, but 800 times, once for each rechargeable batteries a step forward to retirement. The first argument is simply because they are afraid to use power, the battery will be conducted on the above charge, not only increase the number of charge cycles, but will also cause overcharge. The second view is that the battery is full power on the computer in the use of an external power supply will not recharge.
In fact, both views have their right side, but also the wrong place. Because it is only the views expressed by individuals is not very comprehensive, after I investigated, many notebook manufacturers are taking into account the vulnerability of the battery, and the product added to the battery protection technology, and thus the corresponding different brand laptop batteries charging protection technology is different, like some large companies do very well in this regard, such as: IBM, Hewlett-Packard, Toshiba, Compaq, etc.. One of the most thoughtful consideration is that IBM, IBM’s notebook computers can detect the battery discharge situation, ThinkPad notebook battery only less than 95% of the time will automatically recharge. This can play a very good protective effect on the battery, and now many other manufacturers have followed suit dell Inspiron 3700 battery,dell Inspiron 3800 battery,dell Inspiron 4000 battery.

So, like the battery, you do not have the time to use pull down, because only when the capacity less than 95% of the time it would charge. But even so, if you are prolonged use of computers, or will the battery be removed to compare the good, because the long-running laptop heat generated when the battery will cause some damage. However, some other “little brand” laptop batteries, may not enjoy such treatment, because it has not done inside the battery protection technology. I like to use a certain brand of notebook computers, if the fully charged battery on the above, when using an external power supply was confirmed when the first charge about electricity, because the battery storage, will have wear and tear, can not reach 100%, while not 100% as long as , power supply connected to the charge. Each access to external power supply is equivalent to charging the battery once, although only a small charge will be the time. Therefore propose that we use when the machine according to their own circumstances, look at the laptop manual, choose whether to use an external power supply when the battery removed.

The article comes from http://www.mylaptopbattery.co.uk/blog/2009/08/30/the-misunderstanding-of-laptop-battery-repeatedly-charge-and-discharge-deeply/

 Notebook computers equipped with original equipment batteries, after a period of time after use, there will inevitably be of standby time. Some users said: “The depth with repeated charge and discharge method, you can restore the performance of the DELL laptop battery, thereby extending battery life,” I think this to be relatively one-sided.

To understand this issue correctly, may start with the battery type used in laptop computers start with. As you know, before 1995 the production of notebook computers are basically nickel-cadmium batteries to power. The battery is in use, if the charge-discharge method is not correct, the battery will have a “memory effect”, thereby reducing the battery’s actual capacity to eliminate this “memory effect” is used repeatedly in the best way to charge and discharge depth way. With the emergence of nickel-metal hydride batteries, battery capacity has significantly improved, but the “memory effect” did not completely eliminate the shortcomings.
In recent years, lithium-ion batteries in notebook computers has been rapidly growing popularity, due to lithium-ion batteries have basically eliminated the “memory effect” problem, it is used repeatedly to restore the battery depth of charge and discharge performance of the method no longer applies. However, lithium-ion batteries why I still appear to reduce the capacity of the problem? The root causes of that situation, is used in notebook computers and the original lithium-ion battery built-in battery management system in the making.
Battery Management: At present, in notebook computers, almost all adopted the “battery management” and “charge-discharge control” two kinds of chip-level management system. The “battery management chip” placed in a notebook inside the chip to store the register of the computer used in the capacity of lithium-ion batteries, working temperature, ID, serial number, charge and discharge status, charging and discharging the accumulated frequency of important information. The data information in the use of the process, according to the actual situation of continuously updated. The battery built-in “charge-discharge control chip,” the most important role is to monitor and control the battery charge-discharge process as a whole and be documented dell C1295 battery,dell GD761 battery,dell TD347 battery.
Charge: Lithium-ion battery charging process of the whole, divided into “fast charge constant-current” and “constant-voltage charging current decreasing,” two phases. The so-called “constant-current fast-charge” means a charge has just begun when the charge current is fixed and the charge voltage to follow the battery terminal voltage gradually increased until it reaches the nominal voltage charging. When the battery terminal voltage has reached the standard value, the control chip will be automatically transferred to the “Constant current charge decreasing” phase, this time charging voltage will no longer continue to rise, while the charge current is to follow the battery capacity is rising gradually decreasing and finally reached zero, and so will complete the entire battery charging process.
In the meantime, the process of charging the charge arising from voltage, current, time and other data curves will be recorded in the cell are known as “charge-discharge control chip” in memory. “Battery Management IC” is through the retrieval of these data, and is calculated by sampling data such as battery capacity, which is what we read in the Battery Information where the value of Wh.
Fixed: After repeated charging and discharging the battery after use, its built-in chip in the charging and discharging of data will of course change. If at this time “battery management chip” has no chance to re-read the newer, more complete data, it calculated battery capacity would of course not accurate, and to the user the impression that the battery capacity has decreased, but the reality on the battery capacity and there is no real reduction in the actual. Some brands of notebook computers comes with charging management software works, that is, the process of charging Refresh “charge-discharge control chip” in memory of the data, thus ensuring the “battery management chips,” the correctness of calculations.
If you take a close look over the use of laptop computers instructions, you will find among them the “computer in use one month later, the battery should be to make a full charge and discharge operation” instructions. Its main purpose is to use the depth of charge and discharge a way to modify the charge and discharge control chip registers inside the curve data, so that the battery charge control and the nominal capacity and the actual situation of the battery corresponds to arrive at the correct battery capacity values dell HD438 battery,dell KD186 battery,dell GD761 battery,dell Y9943 battery.

The article comes from http://www.mylaptopbattery.co.uk/blog/2009/08/30/re-understand-notebook-lithium-battery-maintenance/

 For notebook computers, the battery can be said to be a more important component, its performance is directly related to notebook computer environment in the absence of power in the ability to work. The laptop battery can be considered a public component in another letter of consumables, it involves the laptop battery maintenance and reasonable use of the forum is also frequently discussed issue. With regard to laptop batteries at the time set aside to save much more than what should stay and whether the use of AC power when you remove the battery problems are not always what a unified answer. I watch a lot of foreign masters in the experience, it will sum up their general point of view, for your reference. After reading this article, you will find many of their claims and receive the recommendations of our universal existence of a number of differences in the number.

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Li-ion batteries in a life cycle in general can be 300 to 500 times charge-discharge. So many people think that, as long as using less battery, so that you can to a certain extent, played a role in extending battery life. But they did ignore the original battery that the physical nature of the end when the battery off the assembly line, it’s internal life, the clock will then start walking. So even if you do not set aside the battery, lithium battery life was only two to three years you can come to an end of. Battery capacity caused by reasons for the decline was due to oxidation caused by the battery internal resistance increases. When the electrolytic cell resistance reaches a certain point, although this time the battery still be full of electricity, but the battery has been unable to release the stored electricity dell Latitude D600 battery,dell Latitude D610 battery.

Caused by lithium batteries is the speed of this aging temperature and set aside when the charge state of preservation decision. I will give a table to illustrate the different situations of these two factors, the impact on the battery capacity.

Can be seen from the table, high charge state and the high temperature accelerated the decline in battery capacity. Therefore, if possible, as far as possible, after the battery charge to 40% placed in a cool place to save. This allows the preservation of a long period, the battery protection circuit is in its working state. And if the battery is fully charged, will be placed at high temperatures, which will cause great damage to the battery, the table has also been seen, charge 100% in the 60 ° C environmental conservation, 3 months after the battery capacity fell by 40% . Therefore, how to save the battery solved the issue, but also leads to another focus of everyone has been argued, that is when we use a fixed power supply when there is a need to remove the battery? Before the resolution of this question let us first analyze the use of fixed power supply when the battery placed in a computer environment in which … … at this time due to charge notebook computers role in protection circuit, so that the battery remained at 100% of full power state, and this When the battery in which the ambient temperature between 25-30 ° C, at least, if the hot weather, this temperature will be higher, then from the table, you should be very natural to come to a conclusion that it is so to do this would actually damage the battery, causing a decline in its capacity.

But despite the use of laptop computers, high-temperature will bring damage to the battery. But Qudiao battery, use only a fixed supply, there will still some danger that dust and moisture will cause some damage to the battery, while the use of notebook computers in order to avoid a sudden power notebook computers may cause damage, so Manufacturers generally warn users not to remove the battery. Of course, this result will be naturally imagined, your battery as often in such a relatively poor environment, it will not be long over, and then you will need to go to repair center to replace the battery, this way, the benefit of course, is a manufacturer of dell Latitude D620 battery,dell Latitude D800 battery.
Finally we spotlight a lithium battery that is exactly how a reasonable charge and discharge this issue. For the lithium battery is best for partial discharge, rather than fully discharged, and to as much as possible to avoid frequent full discharges. Regular battery too low discharge of the result can only be scrapped so that the battery in advance, because if the battery into every cell of 2.5 volts below the battery’s internal safety circuitry will be switched on, this time the battery will become some bad spent. Therefore, in order to avoid such situations from occurring, do not save the battery power before its release was erased, but rather a number of electric charge in the store before, and again before the first fully charged.
All in all, in order not to make your premature loss of the role of the battery, then the use of normal, you should try to comply with the following principles:
A. avoid full discharge, and often for lithium batteries. The repeated arbitrarily rechargeable lithium battery damage is very small, almost negligible.
B. will need to keep hold of lithium batteries placed in the shade, remember not to put in the refrigerator. Avoid placing hot car, such as a long time to save the battery charge to 40% in place.
C. most of the time if you are using a fixed power supply, please remove the batteries placed in the shade.
D. no need to purchase spare lithium batteries for storage, so this piece is actually a waste of battery.
Battery is brought to use, as long as the attention to rational use and preservation methods, there is no need to care for their excessive, making it possible for its owners contribute more to performance is the most important dell Latitude D830 batterydell Latitude X300 battery.

Consumer electronics shopping resource Retrevo says that Apple’s absence from the netbook market is hurting it with students buying laptops. The company has released the results of a study showing the trend.

According to the “Gadgetology” study–culled from Retrevo’s own users–34 percent of students buying laptops are planning to purchase a netbook. Another 49 percent want a full-sized laptop, and the majority of student laptop buyers aren’t considering a Mac.

Students surveyed for the report indicate that longer battery life, small size and light weight are all factors affecting their buying decision, according to Retrevo CEO Vipin Jain, who called 2009 “the dawn of the netbook.”

“Fifty-eight percent of them plan on spending less than $750,” said Jain. Apple offers no laptop in that price range–its least expensive MacBook with educational pricing is $949. Only 18 percent of those students surveyed have a budget exceeding $1,000, according to Retrevo.

Netbooks are an emerging class of laptop computers distinguished by their small size and low cost compared to full-featured general purpose laptop computers. They have limited processing power, storage capacity and memory, but are suitable for surfing the Web, sending e-mail and light productivity work.

Companies like Asus, HP, MSI, and Dell have introduced netbooks into their product lines, while Apple has stayed on the sidelines. When asked by an analyst in July, COO Tim Cook acknowledged that Apple doesn’t “see the way” to build a product it would be happy with at the price point that consumers demand.

“I never want to discount anything in the future, and never want to specifically discuss new products,” Cook cautioned.

During the same conference call, Cook also acknowledged that Apple’s higher ed sales for its third fiscal quarter were flat, with negative growth reported in Apple’s K-12 educational business.

Apple has been rumored to be on the verge of unveiling a new tablet-based product to compete in a lower price bracket than it currently competes, but the company has a long-standing policy of not commenting on rumors, and rarely pre-announces a product before it’s ready to show it to consumers.

Retrevo’s study used more than 300 participants sampled randomly across its monthly visitor base. The sample was distributed across age, gender, income and location areas in the United States. The company claims standard deviation for most questions was 0.498 with a standard error of 0.029.

Apple’s latest MacBook Pro lineup has been getting rave reviews. And deservedly so. Of course, as with any new hardware, these models are prone to a few minor hiccups that don’t affect older MacBook models. Here are two of the oddest ones:

Unusual optical disk drive noises. As first reported by Apple last month, the optical drives in these new laptops may exhibit an “unusual series of noises” when starting up or waking from sleep, even though no disc is in the drive. For those wondering exactly what “unusual” means here, Apple provides a recording of the noise. Out of context, I found the noise to be a bit funny; I’ve even thought about using it as a wacky ringtone.

To banish these sounds from your MacBook Pro, insert a disc “almost all the way” into the slot-loading drive (not releasing it from your hand). Then remove the disc and reinsert it, this time letting it go all the way. This unlikely procedure, dubbed by Apple as “resetting the drive,” should eliminate the problem.

Unexpected sleep. If you are lucky enough to have more than one mid-2009 MacBook Pro (or Late 2008 13-inch aluminum MacBook), Apple advises not stacking them on top of each other (at least not with their magnetic latches all facing the same way). If you do, the top computer may go to sleep unexpectedly, even in the middle of a startup.

While not likely to be a common problem, I found it interesting to learn exactly why it can occur. It can happen because “the magnet in the bottom computer may activate the magnetic switch in the top computer.” Apple considers this to be “normal behavior,” because this is how sleep onset is normally activated when you close the lid of an unstacked MacBook. Sleep is triggered when the magnet in the laptop’s display clamshell gets close enough to the magnetic “Hall Effect” switch in the MacBook body. By the way, Apple didn’t make up the name for this switch; you can check out various Web sites, including this Wikipedia page, to learn more about Hall Effect switches.

Some people are buying netbooks to use as their main computer. I’m a big fan of netbooks, but there is no getting around the small keyboard and screen, they are best used sporadically rather than constantly.

Back in May, I wrote that I expected a new class of netbook computer, those with 12 or 11.5 inch screens, would be the perfect mating of low price with a keyboard and screen good enough for everyday, continual use.

One of this new class of netbooks, the Lenvo S12, is currently on sale for $379 (with free shipping). This is an amazingly low price for a 12 inch netbook.

There are multiple models of the S12 and this price is for the cheapest one.

A month ago, when Brad Linder did a lengthy review of the next-model-up S12, it was $499. That model, with an Intel Atom processor, now sells for $449. For $379 you get a VIA Nano processor.

Still, no one buys a netbook for the performance, it’s purchased for some combination of price, portability and operating system.

The most important aspects of the S12, for me at least, are the full sized keyboard and the 12.1 inch 1280×800 screen.

I have not used an S12, or seen a review that comments on just how pokey the VIA processor may or may not be. Certainly the glossy screen will be a turn-off for some.

On the other hand, Linder notes that “Typing on the IdeaPad S12 keyboard is virtually the same experience as typing on a laptop with a 14 inch or larger display” and he estimates the battery life to be between 5 and 6 hours.

He also agrees with me about prefering a larger netbook. He writes :

“As much as I love a 10 inch netbook, I find myself frequently grabbing the larger IdeaPad S12 when I’m on the go because it has many of the benefits of a netbook including long battery life and relatively small size and light weight, with the added advantage of a screen that can display significantly more information.”

What’s better than a rumor about one Apple tablet? A rumor about two. That’s right: not one, but two Apple tablets could come either this year or early next year. Market researcher Richard Doherty told BusinessWeek that Apple has developed two tablet computers prototypes: a 6-inch oversized-iPod version and another with a bigger display.

According to Doherty, the 6-inch Apple tablet, which we have been hearing about for the past month, will be aimed mainly at watching videos, playing games, and reading e-books. The second model will have a larger screen and will be able to run all Mac applications, including audio/video editing and graphic animation, he said.

(See a related report: Apple Tablet Dreams: Image Gallery )

It makes sense that the smaller, 6-inch Apple tablet would run on an iPhone-based operating system, hence delivering the same capabilities of an iPod, but only with a larger display. This could be very suitable for reading e-book as well, challenging the Amazon Kindle. Doherty speculates that the small Apple tablet model would retails for around $679.

Doherty’s suggestions about the larger Apple tablet are more interesting, though. By saying that the larger tablet would “run all Mac applications,” he is basically suggesting the model would have full Mac OSX compatibility, hence serving for more advanced functions such as an animation workstation or audio/video editing device.

But this is actually the second time we are hearing about two models of the Apple tablet. Late last week, Gizmodo quoted an unnamed source also saying the Apple tablet would come in two editions — but with a difference: one with a webcam and one for educational use. Gizmodo’s source tablet also went for around $700.

Of course, Apple is keeping mum on any rumors or speculation about the tablet. The Cupertino company has scheduled a special event on September 9, where the Apple tablet might or might not make an appearance. Some say that we won’t see an Apple tablet this year, but more likely next year. Until Apple’s September 9 event, though, we just have to wait and see.

While you wait, you might want to have a look at our Apple Tablet dreams image gallery.

Follow Daniel on Twitter @danielionescu