Posted by admin on November 7, 2008
The new battery or the depth of discharge of the battery, the first to use the slow-charging, the number of recycling before they are allowed to reach its maximum capacity, and can be recharged using the fast charge mode.
Nickel-cadmium battery is not completely run out of electricity in the conduct of charge, it would have the effect of memory, no matter how long always charge less than the rated voltage and capacity, thus shortening the life span of batteries used. To reduce the use of batteries each time. Therefore the use of nickel-cadmium batteries should be based on “sufficient light” principle, used by the Chargers should have discharge functions at the same time in the discharge end of the minimum when the electricity automatically into the state-of-charge, charge up to the full.
Fast charging up to the rated capacity of up to 85% of capacity, as a means of emergency, the lowest possible number of proposals in this way. Generally slow to adopt common or sufficient manner, so that each may be able to charge full, in order to ensure the battery Life.
When the batteries need to be stored for a period of time, the batteries should be filled to prevent the battery from the idle release, storage battery appears too long put off, the effect of the use of batteries affected.
Has been on the memory effect of nickel-cadmium batteries can be slow release (complete shine); slow charge cycle repeated three times as much as possible the way for the restoration of full capacity.
Despite the nickel-metal hydride batteries for non-memory effect, but often slow to adopt sufficient and full of shine, so as to ensure rational use of the battery.
Of lithium-ion battery charger must be dedicated.
Generally slow in charge when the battery charge time in more than 10 hours, when the battery charge time is already short battery charger on the show have been filled, and the use of a very short time to appear on the cell phone battery less than a clear instruction as to nearly end-of-life battery.
Rechargeable batteries for mobile phones, large-capacity long standby time, users will no longer convenient to use mobile phones, but the battery does not mean that the quality will certainly be a good, good or bad depends on the measurement of battery voltage plus when the load voltage stability , And the battery used in the life
Posted by admin on November 6, 2008
Different types of cells of a different nature now commonly used in laptop lithium-ion dell TD175 battery (or similar products). Not long ago, and the PC, A4-based notebook computer for the time being in the premise of the use of nickel-metal hydride batteries are also used. The move again before the mid-1990s, is used in nickel-cadmium batteries.
First of all, look at the operation manual, used to confirm what kind of battery. If there is no statement by the battery manufacturer’s home page to see specifications.
Nickel-metal hydride batteries and nickel-cadmium batteries, the biggest problem is the existence of “memory effect”, if the dell TC030 battery has not run out on the charge (half-way charging), the next time the use of batteries, used to start the charge that there will be no local power. If the constant cycle of the process, the battery life will be shorter and shorter.
Although the Ni-MH battery memory effect than nickel cadmium batteries to be small, but repeatedly charging half-way life is shortened. So please try to be all used up battery recharge.
Lithium-ion battery memory effect did not, so even if it is off half-way charge is also no problem.
To extenddell 1691P battery life use
Although the lithium-ion battery is no memory effect, but also how to use a great impact on life expectancy. The use of lithium-ion battery Please note the following:
Full power of the state not to use the power AC drive
And not full of electricity compared to the full power of the state more vulnerable to aging. In particular, is full of the use of electric power AC drive, the battery will give a great burden. At the same time increase the amount of heat to further speed up the aging batteries.
As a result, the use of laptop computers for the time being, once full of power, it is best to use dell 3149C battery power.
Manufacturers suggested that the use of AC power supply when the battery is removed (However, if the battery is removed, we must pay attention to unplug the cable or power failure occurred, such as accidents, the loss would not keep data).
The use of energy saving features
Impact on battery life is the charge and discharge the number of times. In order to minimize the frequency of recharging, can be used with notebook computers the power function (in the use of battery-powered, the screen brightness dimmed and CPU speed to reduce power consumption in order to reduce).
By the same token, there is dell 5081P battery power, it is best not to charge as much as possible, the battery fully utilized.
Full discharge once every few months
Another trick is to put the battery every few months or a full discharge. Specific practices that have been used to zero battery power, to zero after the cessation of the use of electricity, the AC adapter to connect, and then do not use personal computers, together with the electricity.
Some personal computers have a “discharge the battery (Battery Refresh) function.” If the battery is very easy to use, try using the dell 53977 battery discharge function.
Not for a long time, unplug the AC adapter
More than 8 hours or more do not have to, in order not to burden on the battery, unplug the AC adapter. In addition, if not more than a month, you remove the battery from the machine and placed in the shade.
When the battery replaced?
To replace the standard battery is recharged after only reach into the original capacity of about 6.
There are many types of cells as a result, it is necessary to purchase personal computers being used on that kind of model. In addition, it is best not to purchase back-up ahead of time, even if not, the dell 851UY battery will be the natural wear and tear.
There has been no need to buy genuine batteries, but is currently being used to discharge the battery to restore its performance. “BAYSUN” is one of them a week’s time will be able to resume the performance of the battery.
This compared with the purchase of genuine, not only cheap, manufacturers do not stock, or second-hand laptop battery attached to no longer be able to use the occasion is especially convenient, and so on.
Posted by admin on October 24, 2008
In the mobile phone, both from a technical point of view or from the assessment of price considerations, the battery is very important. Value today, the market is sales of mobile phones, used batteries has been completed from a nickel to cell lithium dell battery transition. Perhaps it is because of cell phone battery had just completed a nickel to cell lithium battery revolution, the people’s awareness of lithium batteries are not uniform and in many cases incorrect to say and practice is quite popular. As a result, know a little knowledge of lithium batteries, lithium batteries have the right to use it is very necessary.
one type of lithium battery:
currently on the market use rechargeable batteries are nickel metal hydride (Ni-MH) and lithium-ion (Li-ion) are two types. Lithium-ion batteries have been in mass production of liquid lithium-ion battery (LiB) and lithium-ion polymer battery (LiP) two. Therefore, in many cases, the battery mark on the Li-ion and lithium-ion battery is a must. But that is not necessarily liquid lithium-ion battery, is also possible that the polymer lithium-ion battery.
lithium-ion battery is a lithium battery improved version of the product. Lithium batteries have a long time ago, but the lithium is a highly active (remember that the its position in the periodic table?) Of the metal, it is not safe when used often in charge when burning, the burst , Then there is the improved version of the lithium-ion batteries by adding the element lithium can inhibit the active ingredients (such as cobalt, manganese, etc.) so that the lithium power to achieve real security, efficient and convenient, and the old lithium batteries also Basically eliminated. As to how to distinguish them from the dell 1691P battery on the logo will be able to identify, lithium batteries for Li, lithium-ion battery for Li-ion. Now, notebook and mobile phone use of the so-called “lithium batteries”, in fact, are lithium-ion battery.
The basic structure of modern batteries, including cathode, anode and electrolyte of the three elements. As a battery, lithium-ion battery with the same three elements. Lithium-ion technology in general or the use of inorganic colloidal liquid electrolyte, it needs to accommodate case solid combustible active ingredient, which increased the battery’s weight and cost, but also limits the size and design flexibility. In general, liquid lithium-ion secondary battery is the minimum thickness of 6mm, and then to reduce the more difficult.
The so-called polymer lithium-ion batteries in three of the main structure at least one or more polymer materials used as the main battery system.
a new generation of polymer lithium-ion polymer batteries in the extent of the already very high, so the shape can be shaped and thin (the thinnest 0.5 mm), of any size and any shape, and greatly increased battery design Flexibility in order to meet product demand, made in any shape and capacity of the battery. At the same time, lithium-ion polymer battery unit of energy than current lithium-ion batteries in general increased by 50% of its capacity, charge and discharge characteristics, security, operating temperature range, cycle life and environmental performance in areas such as lithium-ion batteries are relatively large The rate increase.
currently on the market by sales of liquid lithium-ion (LiB) in the over-charging the battery case, thus easily lead to the breakdown of the fire safety situation, it is very dangerous, so to install the necessary protection to ensure that the cell line IC will not Occurrence of over-charging. The polymer lithium-ion battery, this type of cell relatively liquid lithium-ion dell 3149C battery in terms of good-resistant properties of charge and discharge, so the protection of Canada’s IC circuit requirements can be relaxed. Also in charge, the polymer lithium-ion batteries can be recharged using IC will be current with the lithium-ion rechargeable battery used in CCCV (Constant Currert-Constant Voltage) charge means the time required for comparison, can shorten the waiting time for many.
two mobile phone manufacturer of the application of lithium batteries
In recent years, although almost all manufacturers have a preference for lithium-ion battery, but the world’s major mobile phone manufacturers the option of battery or have their own characteristics and habits, for example, in the same period in history:
Nokia: Ni-MH (Ni-MH) batteries, LiB (liquid lithium-ion) batteries did not use the LiP (polymer lithium-ion) batteries.
Ericsson: Ni-MH battery, LiB battery, LiP battery.
Motorola: Ni-MH battery, LiB battery did not use the battery LiP.
is not difficult to find, from the first choice for mobile phone LiP polymer lithium-ion batteries on this matter, Ericsson reflect their true qualities of a pioneer in mobile phone technology. According to the information I find to indicate that the main polymer lithium-ion battery factory in Japan for SONY, Panasonic, GS, and other companies, production in 2000 amounted to 21,000,000, of which 50% of Ericsson mobile phone package. In 2002 into today’s lithium-ion dell 5081P battery in the other cell phone makers of mobile phones has also been widely used and popular. But lithium-ion polymer batteries used, is far from the reach of all mobile phone manufacturers of products that have been popular, is also widely used Youdaishiri.
On the other hand, although many advantages of lithium-ion batteries, but there are also shortcomings, such as higher prices and fewer charge-discharge and so on. Li-ion battery charging and discharging of 400-600, only the number of times, specially to improve the product but also a number of 800. The nickel-metal hydride rechargeable batteries to 700 the number of times over, some of the good quality products, charge and discharge up to 1,200 times, such a comparison, Ni-MH battery life than lithium batteries. In addition the price of nickel-metal hydride batteries are also much lower than lithium batteries. Moreover, strictly speaking, lithium batteries have the same memory effect, but it’s very low memory effect is basically negligible.
In view of this, there is no perfect battery.
Third, the use of lithium-ion battery
This is part of the focus of this article, we discuss three points.
1, for a new battery charge
in the use of lithium batteries should be noted that for a period of time after the battery is placed into hibernation, lower than normal capacity at this time, the time has also come to shorten. However, lithium batteries can easily activated, as long as after 3-5 times the normal charge-discharge cycle of the battery can be activated, the resumption of normal capacity. As the battery lithium own characteristics, its decision is almost no memory effect. Therefore, cell phone users in a new lithium battery in the activation process does not require special methods and equipment. Not only is the theory that, from my own practice, from the very beginning, the use of standard methods of charging that “activation” is the best way.
lithium batteries for the “activation”, a large number of claims: the time to charge more than 12 hours, repeated three times to do in order to activate the dell 53977 battery . “The first three necessary and sufficient to charge more than 12 hours”, it is obvious from the nickel battery (such as nickel-cadmium and nickel metal hydride) inherited. This is why it can be said is the beginning of miscommunication. Lithium batteries and nickel battery charge and discharge characteristics of a very big difference, but also very clear to tell you that I have had access to all the serious official stressed that all technical information and charge-off will discharge lithium batteries, especially lithium liquid Ion battery causing great harm. According to the charge and therefore the best time and method of charging standards, in particular for not more than 12 hours of super-long charge. Typically, the statement introduced mobile phone charging method is suitable for the mobile phone standard method of charging.
In addition, the lithium battery in the phone or battery charger will automatically stop after a charge, there is no electricity nickel charger for 10 hours the so-called “trickle” charge. In other words, if your lithium batteries in full, on the white charger is also sufficient. And we can not guarantee that no one battery charge and discharge protection circuit features and never change the quality of safety, so your batteries will be in the long-term hovering on the brink of danger. This is also another charge against the chief reason.
In addition to certain mobile phones, the charge for more than a certain amount of time, if not remove the charger, this time not only to stop charging system, will be the beginning of discharge - charge cycle. This is perhaps the manufacturer has its own purpose, it is clear that on the phone and dell 851UY battery / charger is the life span of a negative. At the same time, long charging would take a long time, often at night, and to our country’s power grid situation, at night in many parts of the relatively high voltage, but also volatile. Said earlier, the lithium battery is very delicate than nickel in the electric charge and discharge aspects of fluctuations in the capacity of resistance is much less, so this brings additional risk.
In addition, can not be ignored other aspects of a lithium battery that is not the same for over-discharge, over-discharge of lithium batteries is also very unfavorable. This leads to the following question.
2, in normal use when the charge should be
in our forums, often see this as the number of charging and discharging is limited, so should the cell phone battery power used up as much as possible and then charge. But I find on a lithium-ion battery charge and discharge cycle test table, on the life cycle of figures is as follows:
life cycle (10% DOD):> 1000 times
life cycle (100% DOD):> 200 times
which DOD is the depth of discharge of initials. Can be seen from the table, the number of rechargeable and about the depth of discharge, 10% DOD at the time of the life cycle than 100% DOD’s a lot longer. Of course, if the actual charge equivalent to the total capacity of the relative: 10% * 1000% * 100,100 = 200 = 200, which is the complete charge and discharge, or better than some, but in front of friends do say that some of the amendments: normal Under the circumstances, you should have a reservation in accordance with the remaining dell 8M815 battery power and then run out of filling the principle of charging, but if your battery is expected in the first 2 days you can not adhere to the whole day, should start on time charge, of course, if you are willing to back A charger to the office and when Bielun.
and you need to charge in order to cope with the anticipated upcoming busy communications will lead to an important event, even if there are a lot of battery power over time, then you just charge ahead of time because you do not have a real loss “1″ time charge Life cycle, that is, “0.x” times, but often this will be a very small x.
run out of battery power and then filling the remainder of the principles does not mean that you go to the extreme. And charging the same length of a widespread view that “as far as possible the cell phone batteries run out of power, it is best to use automatic shutdown.” This is only a matter of fact on nickel batteries, to avoid occurrence of memory effect, unfortunately, it is also spread of lithium batteries on this. It has been too low because the cell phone battery warning appears, do not continue to use the charge has been used in automatic shutdown of the case. The outcome of this case, the phone was in charge of the boot in and there was no response, had to give customer service overhaul. In fact, this is due to the battery as a result of excessive discharge and led to the low voltage that does not have the normal charge of the boot and conditions.
3, lithium batteries for mobile phones in the right way
boils down to, I lithium batteries used in mobile phone charging and discharging of the most important tips are:
1, in accordance with the standards and procedures, charging time, even before the three to do so;
2, when a low power cell phone tips, it should start charging as much as possible in a timely manner;
3, lithium dell 5208U battery do not need to activate the special method, in a normal cell phone use in lithium batteries would be natural to activate. If you insist on spreading the use of “three times before the 12-hour long activation charge” approach, in fact there will not be the effect.
As a result, all 12 hours long pursuit of the lithium batteries and rechargeable cell phone used in automatic shutdown, are wrong. If you are used to be in accordance with the wrong done, please correct in a timely manner, perhaps not too late.
Of course, cell phones and chargers to protect themselves and control the quality of a good circuit, for the protection of lithium batteries or have guaranteed. Therefore, understanding the rules of the charge is the key, in some cases also may make some concessions. For example, you found your cell phone the night before bed charge, you can also start charging before going to bed. The crux of the matter is that you should know what is the right thing to do, and not in accordance with the deliberately wrong to do.
Posted by admin on October 11, 2008
One can only discharge the battery once a secondary VGP-BPS5 battery charge and discharge cycle can be repeated use of rechargeable batteries in the discharge volume and structure of the electrode between reversible changes, so must adjust the design of these changes, and an internal battery is much simpler, Because it does not need these irreversible changes in regulation, a laptop battery capacity and the quality of the volume ratio is greater than the capacity of both general rechargeable laptop battery , rechargeable battery internal resistance than the large, so the load is comparatively low, In addition, a battery self-discharge Far less than the secondary battery.
Posted by admin on October 10, 2008
At present, mobile phone batteries are basically equipped with the lithium-ion battery, so I said the following is for lithium-ion rechargeable laptop battery knowledge. Ni-MH battery is different from talking about here.
1, lithium-ion battery nominal voltage 3.7V (3.6V), charging cut-off voltage 4.2V (4.1V, the batteries under the brands have different designs). (Li-ion batteries is the norm: lithium ion secondary battery)
2, to the requirements of lithium-ion rechargeable battery (GB/T18287 2000 norms): First of all, constant current charge, that is, a certain current, and battery charging voltage as the process of gradually increased, when the battery terminal voltage to reach 4.2V (4.1V), To charge for the current charging voltage, that is, a certain voltage, current batteries based on the degree of saturation, with the charging process to continue to gradually reduce, when reduced to 0.01C, that the termination charge. (C batteries based on current nominal capacity of a control method that, if the battery is a 1000mAh capacity, 1C charge current is 1000mA, attention mA is not mAh, 0.01C is 10mA.) Of course, that standard is 0.01 C5A, here I simplified.
3, Why is that the charge for the end of the 0.01C: This is a national standard GB/T18287-2000 provided as well as the discussions. Previously it was generally for an end to 20mA, the Ministry of Posts and Telecommunications YD/T998-1999 industry standards provided for in the same way, that is, no matter how much Latitude D500 battery capacity, to stop all current 20mA. GB 0.01C provided help to more full charge, through the identification of a party manufacturers benefit. In addition, the national standard provides for the charging time is not more than 8 hours, that is, even if not yet reached 0.01C, 8 hours, and that the end of the charge. (No problem, the quality of the batteries should be 8 hours to reach 0.01C, the poor quality of the battery, wait and meaningless)
4, what difference is the TD175 4.1V or 4.2V: consumers do not have the distinction, depending on batteries manufacturer of the product specifications. Some brands of batteries are 4.1V and 4.2V common, such as A & TB (Toshiba), the domestic manufacturers is the basic 4.2V, but there are exceptions, such as Tianjin is the power of God 4.1V (but also by a 4.2V).
5, the rechargeable batteries of 4.1V to 4.2V happen: will increase the capacity of the battery, with a good feeling, and standby time, but will reduce battery life. For example, the original 500, reduced to 300. By the same token, to the 4.2V batteries have been sufficient, it will lower its short-lived. Lithium-ion batteries is very delicate.
6, since the battery inside a protective plate, we can rest assured that it had: No, because the board to protect the cut-off parameter is 4.35V (this is good, the bad to 4.4 to 4.5V), protection of the board is to meet in case If every time charge-off, the battery will decay quickly.
7, much of the charge current is appropriate: In theory, the smaller of the more beneficial to the Latitude D600 battery . But you can not order a battery charge, such as 3 days now. GB provides low-rate charge is 0.2C (standard arbitration charge), but also to the top of the battery capacity of 1000mAh, for example, is 200mA, so we have this battery can be estimated more than 5 hours to full charge. (MAh = current capacity mA × time h)
national technical supervision departments to identify capacity lithium-based high-rate charge of 1C to 0.2C low discharge rate, time to calculate the value of capacity, the number of Test 5, 1st capacity to reach the end of the trial. (5 is the chance that if the first pass a test on the back of the 4th does not) allow for testing before the first cycle in advance, in order to 1C is the current charge that 4.2V to cease, and not behind the constant pressure to 0.01 C process, but not 14 hours.
8, lithium-ion batteries can withstand much of the charge current: factory tests can be very high, but the elevation ratio requirement for the country 1C, also above the cell, for example, more than 1 hour can be filled. Such a charge current, battery can bear it? For the current lithium-ion batteries, is the only Xiaoyi Si. There are no national standards for the Chargers, enforced by the Ministry of Posts and Telecommunications is the industry standard YD/T998 1999 / 2, which provides for the current charger not to be more than 1C.
9, and how life is provided for: to put it simply refers to the Latitude D620 battery at 1C charge N after, 1C discharge, the capacity dropped to 70% at this time of the N is the life. Is not to say that 300 can also be used, the 301 can not be used. GB provides life shall be not less than 300. We usually do not detect the use of the conditions so harsh, life will be longer.
Posted by admin on September 28, 2008
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