Digital battery

Lithium battery storage devices ion energy on behalf of the development orientation of the spacecraft is the third generation storage device power spacecraft. It has a lightweight, small, no memory effect, to adjust to the temperature scale, etc., the main use of Ni-Cd, Ni-MH battery replacement. Lithium-ion batteries for the ratio of weight aerospace energy of 90 ~ 110Wh/kg compared to Ni-MH Laptop battery ~ 45 indicators 60Wh/kg have obvious advantages. However, the electrochemical properties of lithium-ion batteries that require charging process must be strictly controlled, therefore, to design a special circuit to monitor the management of lithium-ion battery ship loading process.

The lithium-Key-ion battery charger

Lithium-ion batteries replaced nickel-cadmium, Ni-MH battery can not be applied a “plug and play” approach, because the lithium-ion battery and Ni-Cd, Ni-MH battery has a very big difference: Lithium-overcharging ion is strictly prohibited. Therefore, we must combine the features of the design of new lithium-ion battery charging circuit for battery management. Lithium-ion battery circuit management charge of key points (with Ni-Cd, Ni-MH battery charge management circuitry main differences between points) is two main aspects: the mode of charging and load balanced.

In engineering applications, lithium-ion VGP-BPS10 battery monomer or from a single cell in parallel to form a battery module is held in tandem with the battery, it must take into account the process of charging the battery or a stack imbalance monomer unit, but as time passes, these imbalances will become increasingly serious, serious impact on battery life and reliability, equalization charge is also the key technologies for lithium - ion battery.

A constant voltage constant current - (TAPER) Charge Control Model

The introduction of nickel-cadmium, nickel-hydrogen battery power system by satellite, using essentially the current mode of constant load, when the curve reached VT, power electronics, pressure, the third electrode method command such as checkpoints to stop charging the completion of a charging process. Lithium battery ion control is not suitable for application of these methods, because the charge does not guarantee the lithium rechargeable ion batteries is always limited to the final pressure within limits, although the load is guaranteed final pressure is often pressure to reach the final load immediately after the termination of charging, lithium batteries, ion batteries to reach the final after fracturing must add about 30% of electricity. From the perspective of developing lithium-ion batteries for many years, a constant current - constant voltage charge command is the most common and most appropriate mode of load control. In this mode, the charger first lithium-ion batteries for charging at constant current when the VGP-BPS13 battery voltage is raised gradually when the battery voltage reaches the value set to a constant voltage charging, where the load current decreases approximately exponentially, so that kind of load, also known as TYPE-based load control. 

2 load-balanced technologies

Aerospace lithium-ion battery charging technology must be balanced, this view has been fully recognized at home and abroad. A balanced technology is primarily responsible for resolving the long-term single lithium-ion battery charging process in the electrochemical properties of bias and, therefore, the merits of a balanced pricing will take some time, capital and investments are made to be effectively checked.

Lithium-ion battery equalization charging civilians in the product has not yet received widespread attention and application, because the multi-cell section is only rarely applied in series, reliability, durability and non - not ask for much. Lithium-ion batteries in electric vehicle system, the single cell series of other sessions, has adopted a balanced charging technology, the general system of microcomputer control is used in a single cell on a shunt resistor on the application running well-off and control the amount of a single battery charge. Such methods to control the complexity, low efficiency, heat consumption of large, balanced for a long period in the early program of aerospace products in the transplantation of this approach, the technical personnel at home and abroad studying now even more perfect.

The importance of a balanced load is to make lithium-ion battery voltage difference monomer remain in the expected range, thus ensuring the life of every cell in the satellite during the shocks are not subjected to stress too much damage. Without a balanced control costs, with the increase in charge-discharge cycle, the voltage of a single cell differentiated gradually.

Under normal circumstances, when the lithium-ion battery voltage difference load monomer within 50mV is perfectly acceptable. We believe that the main reason for discrepancies caused by an effective single battery charge, self-discharge rate is different. On the other hand, single cell in the circuit measuring the current consumption should also seriously consider the effects, sometimes consumed circuit current measurement has reached the size of the VGP-BPS11 battery discharge current. Experience life Lithium-Ion battery make, and some technical staff to reflect the first round of the battery is often only the first or last is damaged; it is often consumed as a result of the measurement circuit.

Car battery is important, its function is to provide an electric starter, the engine starting or operating at low speed for the ignition system of motor and other electrical equipment. High-speed operation when the engine when the generator enough, the battery can store excess energy. Unfortunately, it is generally ignored by most people. I do not know the proper maintenance of batteries to keep it plenty of power, is an important part of vehicle maintenance. The following will introduce the conservation of car battery connected to knowledge and common sense, to help you better understands the use and maintenance of the battery to extend battery life.

Car battery car battery works the vast majority of lead acid batteries. In simple terms, it is a chemical energy into electrical energy capable of electrochemical devices. Lead acid battery in the positive and negative plates, bulkheads, shell, etc. electrolyte and wiring trailer hitch and the discharge of chemical reactions depend on the active positive plate (lead dioxide PbO2) and the negative active material (sponge of pure lead, Pb) in the electrolyte (sulfuric acid composition of H2SO4 and H2O water) and as a result. A standard 12V lead-acid hp Pavilion DV1000 battery contains six modules, each of the power of electricity is about 2V (one for each power supply has a positive and negative column: column is entered the positive sign “+”, dark brown negative column when a “-” sign in pale gray).

Traditional batteries will occur in the electrolyte is in decline is because the frame plate door with traditional batteries lead alloy of antimony, antimony will pollute the negative plate of pure lead sponge, weakened after the battery is fully charged in a Counter electromotive force resulting from the decomposition of excess water, a large number of oxygen and hydrogen, respectively, escaped from the positive plate and negative, so the reduction electrolyte.

Without maintenance (maintenance free) batteries into the design principles and traditions of the Dell Inspiron 9400 battery on a coherent strategy, the use of thicker plate materials, important difference is that the plate is consistent with lead calcium alloy. In the electrolysis reaction, it can reduce the flow of excessive burden, reduce the rate of vaporization of liquid, thus reducing the loss of electrolyte, compared to prolong battery life.

Discharge and load

In the year (discharge) process dioxide very edge of lead (positive), the spongy lead (negative), and sulfuric acid electrolyte chemical reaction occurs to produce the discharge of lead sulfate (PbSO 4) and d water (H2O), positive and negative plate the difference between reduced. Because the battery voltage depends on different electrode materials and electrolyte concentration, so the reaction after discharge, the battery loses power. Charging process (charge) and discharge process to the contrary. Current in the generator under the action of sulphate of lead and water lead dioxide (positive), the spongy lead (negative) and sulfuric acid, plates, electrolyte concentration restored, the battery of energy.

Caution

1 to start the car every time startup should not exceed 3-5 seconds after starting interval of at least 10 seconds.

2 vehicles often short driving distance open-window open will result in a prolonged state of toshiba PA3395U-1BRS battery charge less to shorten the lifespan. On the highway driving at a constant rate of 20? 30 minutes, may give enough time to recharge the battery.

3, driving a day before leaving the car, check and ensure that all lights and other electrical appliances (such as radios, CD) has been closed. Because it may drain your battery.

4, if the battery runs out, to ask the fire (Jump-Start, also known as tie-lines) to begin immediately possible a constant speed (such as highway speed) drive at least 20? 30 minutes to fully charge the battery.

5, in the full discharge of the battery case, ask the fire may be unable to help you start your car. In this case, you must use a dedicated battery charger for slow charging.

6, where cars are not long-term investment should first fully charge the car. At the same time every month, launched his car, operation at medium speed for about 20 minutes. Otherwise, place too long, it would be difficult to start.

7 to understand the life of the VGP-BPS13/S battery. Using more than 4 years, proposed to replace

In June 2009, a new attracted our attention: Sony Corporation has announced the six models of mercury-free alkaline button batteries (LR) of the marketing plan, which means that the Sony-mercury button batteries are fully free market.

In fact, as early as eight years ago, China’s New Leader Battery Co., Ltd. Business battery had been a breakthrough ahead of other countries that have plagued the world’s problems, and was the first conducted a large-scale production.

The mercury batteries inside a great harm to humanity, because the Laptop battery inside the mercury on the brain and nervous system toxin interfere significantly with normal nerves, the exposure fetus or infant to high doses of mercury can cause mental retardation, cerebral palsy, hearing impairment or loss of vision and so on. Even exposure to low doses of mercury, may also affect the healthy development of children, it may enable them to attract attention, action coordination, language skills, visuospatial, and memory problems text. For adults, a chronic mercury poisoning can cause memory decline, seizures, vision loss, and the hands, feet means paralysis, and fertility and the devastating effects of blood pressure. Increasing evidence shows that exposure to mercury may increase heart disease.

And because the VGP-BPS8 battery of a high frequency of use and universality, making the threat of mercury-containing batteries become more evident. It is reported that a New Zealand-style micro-mercury alkaline batteries can be contaminated by water is 600,000 liters, equivalent to the amount of water, the life of a person.

In other countries, more than a decade in Japan and the United States, Europe and other well known manufacturers of mercury-free batteries, mercury free button cell surprised by a large number of studies. However, there are technical problems are not resolved, there is no one company can successfully produce mercury-free alkaline button cell, resulting in the global market has been the use of mercury-containing button cell alkaline. Coin 1 billion each year by the production and use, so that China and the rest of the world, people still face the risk of mercury exposure.

While all research stopped, when this problem by breaking the new company-Qing Li Dade. In this regard, the China Battery Industry Association and the American groups of the environment have given a high degree of recognition and evaluation as the cause of the world’s great contribution to protecting the environment. With the invention of this technology, China has become the world’s first mercury in Dell XPS M1210 battery-free buttons cracking problems of the country.

It is understood that the reasons for mercury button batteries, mercury is used to block cream zinc anode of the battery with pieces of metal anode contact, because these contacts produce hydrogen gas, leading to cell swelling deformation, leak or even explosion. Early mercury button cell battery problem leak also exists, which affects performance, battery life and use of the most fatal flaw, but in the late 70s of last century, mercury leakage problems of button cells, they were forwarded to the original use of punch made with stainless steel plate and then nickel plated or gold, “the negative coverage, replaced by a” nickel, stainless steel, copper laminated composite formed the “Group of metal composite,” made negative coverage, and other improvements related to actually be controlled.

The purpose of this patented invention is to maintain the original mercury (eg mercury) batteries buttons fight against the performance of the leak itself based on mercury free button batteries.

The patent on October 19, 2001 by the National Office of Intellectual Property in the patent application, and October 2, 2002 announcement was authorized by the patent No. 01234722.1.

With the use of mercury-containing button cell and the increasing volume of waste, waste batteries, mercury pollution of the environment is becoming more serious. Thus, the needs of environmental protection, button cell hp F2024A battery industry manufacturing has been eager to set the battery in the mercury problem. In this patent application, Sony, Toshiba, Hitachi, Panasonic, Seiko, etc. at the button battery R & D and manufacturing industry, the leading position among Japanese companies, are mercury free button batteries for solve the problem for a variety of attempts and efforts to put forward all kinds of technological solutions. All these technical programs are committed to addressing mercury free leakage caused by the new problem, but failed to respond effectively to mercury free technology and anti-leakage effect of the two. Therefore, this patent application until a few days ago, button battery manufacturing may actually have not effectively address both mercury-free technology and the fight against the problem of leakage, and therefore mercury free button batteries are not even really realize the industrialization and market access.

This patent search and development through the use of unconventional ideas, successfully resolved the distress button industry of the manufacture of batteries for many years of technical problems. Before the date of this patent application, all addressing the issue of mercury-free technology for improving the program are in the existing technology base to mitigate the negative effects of escalation (eg, leaks) Speed commonly used by nickel - stainless steel - made from copper to remove three layers composite plate consisting of the CAP metal anodes based on a sophisticated system, all designed to improve the programs do not address the negative laminate cover any changes in the structure itself Similarly, even knowing that negative coverage multilayer structure forming the dislocation occurs and damage and coatings used in its suppression of the hydrogen produced by indium or tin, causing the VGP-BPS9 battery chamber of the tire and leakage is still a proposed complex of many other “plugs” of the program, but has not given regarding the availability covered by changing the negative multilayer structure to solve this problem, inspiring art.

And this patent is another way, its R & D and put aside the idea of super-normal manner by existing technology, made of three layers of sheet metal composite anode covered with a laminate structure, but directly by the metal plates and sheets stainless steel anode on-chip gold, silver, copper, tin, indium and other tests and found that the negative on the chip or indium tin -plated success in controlling cream zinc anode of the BATCL50L battery in contact with the film anode product gas as well as the improvement of raw materials and formulations on the successful production of a mercury-zinc free alkaline-manganese, zinc / silver manganese button-type batteries. Based on the discovery, the completion of the present utility model. ”

In this patent, the technical program to better the negative on the chip or indium tin plating and the elimination of a single pinhole surface prone to problems presented in this patent by plates of iron or stainless steel in negative film on the bare chip first nickel plating or copper, because of “a chemical nickel or copper, anode film battery,” and then in the chip of indium anode battery or tinning.

Using patented technology, the program has produced mercury free button batteries in 2002, which had been successful in achieving industrial production, the product of the mass market, buys the use of ‘well-known companies such as McDonald’s, and has received praise from environmental groups in the United States, reached a Sony, Toshiba, Hitachi, Panasonic and other multinational efforts for many years failed to achieve the technical objectives for protecting the ecological environment of mankind has made a significant contribution.

Camera battery digital battery commonly used in lithium-ion batteries, batteries nickel hydrogen, nickel-chromium batteries, alkaline batteries, etc … Most digital cameras use batteries AA Ni-MH Laptop battery to do.

1, Ni-MH battery features:

Nickel-metal hydride batteries (NIMH) is one of modern electronics, the battery the most widely used, a large green with a unique ability, the discharge characteristics of a smooth, high universality, heat a little and so on. The disadvantage is that large, self-weight important.

2, Ni-MH to self:

Ni-MH battery nominal voltage of 1.2 V, in the case of sufficient power to 1.35 V, with Class AA regular alkaline battery are similar, essentially universal, Ni-discharge characteristics of MH battery are very good, very smooth discharge curve, consumption of electricity is about to end, the voltage drops abruptly, which is close to the nickel chromium batteries, but not as good as nickel discharge current instantly piles of chromium. In addition, nickel-metal hydride batteries used mercury-free design, which is of great importance to environmental protection.

3, Ni-MH battery structure:

AA Ni-MH VGP-BPS9 battery with the same form as ordinary AA batteries. With nickel chromium batteries, like nickel-metal hydride batteries used reversible chemical reaction to reach the charge and discharge process. Therefore, in the process of loading and unloading of the battery will produce a large number of gas inside the battery internal pressure is relatively high, therefore, nickel-hydride batteries are used in metal in the design of the exhaust vent to prevent excessive internal pressure caused by an explosion. Currently, we have been in contact with GP series battery, do not see how the tube, because the battery is installed on top of a circular plastic film used to prevent blockages and prevent the positive vent cap Hull with the negative short-circuit.

4, the battery memory effect:

The effect of so-called memory refers to the battery charging and discharging process, the chemical composition of the internal battery is determined in a region can not continue to produce a chemical reaction phenomenon. With an example: When the battery is fully charged, it can be a continuous stream of 60 minutes. Now we’ll use this section to conduct the VGP-BPS13/S battery of this electric discharge, discharge to 30 minutes to stop, and then this part of the battery to charge a good 30 minutes after powering up continue to perform, are not completely discharged each time, after N repeated operations The batteries have a memory effect, the process used in the future, when the discharge of the battery after 30 minutes, more output current, which is the battery capacity of this section reduced by half. Of course, we now use nickel-metal hydride batteries in general, this phenomenon do not occur, because the chemical composition of nickel-hydride batteries and nickel metal battery chromium different. Ni-Cr memory effect the battery is very serious.

5, the battery:

Is slightly different and the Ni-Cr, Ni-Cr battery is a constant pulse of current to recharge, while the nickel-hydride batteries in metal using a wavelet, the relatively smooth current to recharge. In emergencies, the two shippers are interoperable. Charge should be to control the charging current appropriate, how to estimate the current load properly done? This depends on the battery capacity to decide. In general, civil standard battery 16 hours to charge, charge current is: VGP-BPS9/B battery capacity / 10, units mA. There are fast charge, fast charge current standard of 2.5 ~ 5 times, there is no uniform standard. Our selection of chargers, they should try using the standard charger, how to determine the load current chargers do? When we buy a magazine, looking for a JS or have a multimeter multimeter, charger plug supply, multimeter affected DC 500mA stall, desktop charger red pen and then the film cathode of the battery, pen blackboard, and negative films, which can be approached by reading multimeter to determine feeder load current, because the internal resistance of the battery is low, so close to the actual load meter reading in progress. You can also use a number of self-feeder, the advantage of such a charger stops automatically loads the son not to worry people. There is also a charger with a trickle charge is a function, which is an electric charge in good condition, the charger automatically uses less than 10 times the current standard of care for small current continues to maintain the battery charge which is to maintain the battery capacity and prolong the life of the battery well. Al-Sahaf GP has recommended that such a combination of pricing Po charger recommended. In addition, we should try to avoid the use of fast-charge, fast charge, the chemical reaction inside of the battery is very severe, the temperature is high, which will accelerate the aging of the battery and shorten battery life. However, when you exit or emergency charger fast, but very useful oh.

6, the discharge of the battery:

Were fed the exercise, and consumption. The VGP-BPS9A/B battery is the same charge of electricity, we must pay. In addition to the normal discharge in outdoor use, why do we still run the battery to discharge it? Please come listen to me 11. When our camera due to run out of batteries needed to recharge the battery when we find that these batteries run out in other electrical devices can continue to use? In addition, for each cell the same as that used in the electrical length of time-varying? This indicates a problem is the capacity of these batteries is inconsistent. Why is there such a situation? The reason is: we use our appliances, most are two or more cells of the battery is to link the battery packs in accordance with Ohm’s law, one can see that throughout the series circuit current is equal, the internal resistance of each cell can not be fully compatible with (even at the same time, the same production line for batteries), then the voltage drop at both ends of each section and the power consumption of battery is not completely the same. This has led to the battery in the same imbalance in the relationship between the circuit, eventually leading to one or more batteries in the long “enough to eat, could not stop,” the State until that it is damaged. The reason we display on the battery discharge, while abhorrent to eliminate memory effect, on the other, so that each section of the battery as much as possible to reach equilibrium, with full, finished with release, work synchronously. So how can we discharge? Please keep in mind this truth: “discharge, we must separate each section of the discharge of the VGP-BPS9A battery!” Otherwise, cons-productive, not as good as letting go. Discharge resistor or small bulbs can be purely resistive components such as resistance controlled discharge at 1.5 to 4 ohms, slow discharge big, too small to heat the battery. In practice, it is recommended to use three 3.8V parallel beads the electric discharge lamp, a resistance of 1.7 ohms at this time, discharge current of 700mA, less than 10 minutes, the lights went on discharge is completed, it is intuitive. You can also use the method of resistance + discharge bulb, Shi measure the resistance controlled at between 1.5 and 4 ohms on it. We can be converted to produce low discharge of the battery charger of the quality we want is to buy charger less (about 5 million euros) for a better selection of housing and support this amendment, then remove the internal battery charger for all electronic components, retaining only the circuit board and watching the battery then welded to both ends of each VGP-BPS8A battery clip with our light bulbs or resistance and so on, so we put on the equipment yourself better.

7, battery care:

In the process of using the battery, following the release of “full full” principle, do not eat too full, do not be too tired. Beware of the battery shorted on, this is very dangerous. Do not tear the skin in plastic drums, as this may easily lead to a short circuit, this one is very dangerous. Do not disassemble the battery or the battery in fire. A long time does not use the battery must be filled with storage, the reopening of the first discharge, then charge to use. Try to match the use. If we could do the above, we will always keep the battery in good condition, the best services for the majority of DX.

8, the battery of purchase:

Buy batteries, in addition to a pair of piercing eyes, we must also note the following points: ① Select JS confidence, at least the assurance; ② need to choose according to their abilities, some of the best choices for large capacity; ③ Choose well known brand battery;

With the growing popularity of laptops, notebooks on all aspects of the problems appeared in various media on the largest number of arguments for the proper use of laptop batteries, notebook batteries of certain items that the use of personal experience, while others claim expert advice (which we often do these sales), all sorts of stories, the number argument.

The author is also a regular laptop user, but not an expert, but with several years experience in the use of notebooks, the author through a friend recruited dozens of university students using a computer mobile, so they talk about their experiences on the use of cell phones, coupled with her a little more experience, summed up what is available to the

We as a reference, hoping to give everyone a little help.

Argument 1: activation of a new VGP-BPS8 battery

View 1: Before you buy a new battery inside, there will be more than 3% of electricity, more than the battery inside the power exhausted, to rest, then reuse a load external power. The charging time must exceed 12 hours, three times in order to activate the battery.

View 2: No, the battery for 10 hours of rechargeable battery to activate the activity of the normal load, the method of release for activation.

Survey Results: The authors studied 24 students from colleges and laptop users, 18 is the second view, and the manner and does not charge the battery for future use can hurt, of course, exclude damage to the natural elements. The author himself is also the case when the normal use of a new battery for up to two hours and a half, now two years, the state of the battery is still good, still can reach more than two hours, so I fear I have been satisfied?

the proposed method: I agree with the second view, based on available information indicates that the activation of cell work should be completed at the factory and a plant cell battery with a capacity of some natural wear to avoid damaging the VGP-BPS8A battery. The activation of the battery must be in no case to protect the circuit can be with its own circuit of lithium-circuit protection, the purpose of this part of the circuit is to prevent the battery charge and excessive discharge usually filled after charging the battery when the indicator light off, the battery can be recharged in electricity, and then you plug the power plug to recharge the battery in the face of what? Available from the battery can be seen on the battery status of any charges, another teaches you offer a simple way to be able to determine whether there during the battery charging, battery charge , where the phenomenon has a fever, when the battery is full after one hour (power plug does not fire), you’ll try the battery to see if the battery is still warm, not hot? The result is undoubtedly the cold, because the battery is not charging and discharging state is certainly not the heat. Manufacturers of portable computers in the factory will offer a new battery for more than 10 hours. This sentence may be generated for some users the wrong point of view first, the author of this opinion, should be taken into account that some notebook manufacturers a new user in the battery again when n is not fully capture the skills, just so they can charge directly for 10 hours, which should be the business opportunity.

Secondly, the argument two: whether the AC disconnects the VGP-BPS8B battery?

View 1: Use an external power supply when the battery removed.

View 2: Use an external power supply is not necessary to remove the battery.

Survey Results: Most students in the use of an external power source, the battery removed, only a few use an external power supply when the battery is placed above, the few brands are used by students in several global brands.

the proposed method: In fact, if the battery is removed, the conflict has focused on the use of an external power supply when the battery is in charge of question

. We must know that the number of loading and unloading of the battery life is directly related to the lithium-General established the number of loading and unloading are fixed number of charge cycles only 400-600 times, especially products modified, but 800 times, once for each rechargeable batteries a step toward retirement. The first argument is simply because they are afraid to use power, the battery will be conducted on the above charge, not only to increase the number of charge cycles, but also cause an overload. The second view is that the battery is full power on the computer using an external power supply will not recharge. In fact, both views have their right side, but also in the wrong place. Because only the views expressed by individuals is not very full after my investigation, many laptop manufacturers taking into account the vulnerability of the stack, and the proceeds added to technology protection VGP-BPS9 battery, and therefore different laptop batteries corresponding brand protection technology pricing is different, as some large companies are doing very well in this area, such as IBM, Hewlett-Packard, Toshiba, Compaq, etc.. One of the most thoughtful consideration is that IBM, the IBM laptop can detect the location of the discharge of the battery, laptop battery ThinkPad only less than 95% of the time will reload automatically. This can play a very good protective effect on the battery, held today and many other manufacturers followed. So, as drums, you do not have time to use pull down, because only when the capacity is less than 95% of the time, he is responsible. But even so, if you are prolonged use of computers, or will be removed from the battery to compare well, because the long duration of heat generated when the laptop battery will cause some damage. However, some other “little brand” batteries, may not benefit from such treatment because he was not within the protection technology of the battery. I like to use a certain brand of computers phones if the battery is fully charged to the above, when you use an external power supply has been confirmed at the first charge on electricity, because the storage battery, will wear, can not reach 100 %, while not 100% as long as the power supply connected to the load. Each access to an external power supply is equivalent to recharge the battery once, although only a small charge will be yet. It therefore proposes that we use when the machine according to their own situation, look at the manual laptop, choose whether you want to use an external power supply when the VGP-BPS9A battery removed.

Thirdly, the argument 3: how to load correctly?

View 1: The battery should always be all exhausted, so that consumption of portable computers to automatically stop and reload every time must be filled.

View 2: When the battery is very deliberately not pay attention and use it when I wanted to pay extra.

Survey Results: The majority of students said that, needless to the view first, as used in automatic standby mode, then load, but also as the second point of view, it is free. Are generally used when the battery must be recharged when the computer has prompted further charge, of course, calls per hour may be set, the default is 3%.

the proposed method: In this paper, the proposed method with the majority of students is the same. In fact, regardless of nickel batteries using a laptop-metal hydride, lithium batteries are such a memory effect, and nickel-hydride batteries with metal memory effect is very obvious, but it will effect memory lithium, but his memory effect smaller than nickel-metal hydride Bale. There is no memory effect on lithium-that only exaggerated and irresponsible to do business in advertising, is totally misleading. Well, since the VGP-BPS9A/B battery has a memory effect, it should be noted at the load point, as far as possible, then run out of charge, but you do not need to say deliberately use the computer to s ’stop automatically, so that although there is no harm in using them (because the laptop battery has a charge-discharge secure a laptop automatically shut down has not yet reached the standard battery protection discharge), but you do not feel tired? In fact, less than 3% of the burden in this way is very good, memories will certainly effect compared to natural wear, there should be nothing. The second count on the charge to view the author is totally disagree and we have already said, if the laptop battery nickel metal hydride, lithium, which has a memory effect, if in this way, then the battery life will be shortened.