[Most Recent Entries] [Calendar View] [Friends]
Below are 20 journal entries, after skipping by the 20 most recent ones recorded in
Jack's Blurty:
| Sunday, October 4th, 2009 | |
| 4:08 pm | Principles of the battery Principles of the batteryIn the chemical cell, chemical energy directly into electricity through the laptop battery is carried out within the spontaneous oxidation, reduction and other chemical reactions the result of the reaction were carried out in two electrodes. Negative active material from the more negative potential and a stable reducing agent in the electrolyte composition, such as zinc, cadmium, lead active metals and hydrogen or hydrocarbons. Positive active material from a more positive potential in the electrolyte composition of a stable oxidizing agent, such as manganese dioxide, lead dioxide, Toshiba laptop battery, nickel oxide and other metal oxides, oxygen or air, halogens and their salts, oxygen-containing acid and its salts etc.. Electrolyte is a good ionic conductivity of the material, such as acids, alkali, salt solution, organic or inorganic non-aqueous solutions, molten salts or solid electrolytes. When the external circuit disconnected, although there potential difference between the two poles (open circuit voltage), but there is no current, stored in the Sony VGP-BPS9 batteries do not convert chemical energy into electrical energy. When the external circuit is closed, the two electrodes under the effect of potential difference that there is current flowing through the external circuit. The same time, the battery inside the electrolyte does not exist due to free electrons, charge transfer must be accompanied by two poles active material and Pavilion DV1000 battery electrolyte interface, the oxidation or reduction reactions, as well as reactants and reaction products of mass transfer. Charge transfer in the electrolyte but also by the migration of ions to complete. Thus, within the normal Toshiba PA3451U-1BRS battery charge transfer and mass transfer process is to ensure that the necessary conditions for the normal output of electricity. When charging, the battery inside the transmission power and the direction of mass transfer and discharge exactly the opposite; electrode reaction must be reversible, in order to ensure the opposite direction of mass transfer and mass of the normal electrical Sony PCGA-BP2NX processes. Therefore, the electrode reaction reversible constitutes a necessary condition for batteries. Reaction for the Gibbs free energy (coke); F is Faraday's constant = 96500 base = 26.8 ampere-hour; n the equivalent number for the Latitude D600 battery cell reaction. This is the reaction of the battery and battery electromotive force between the basic thermodynamic relations, but also calculation of cell energy conversion efficiency of the basic thermodynamic equation. In fact, when the current flows through the electrodes, the electrode potential must deviate from the thermodynamic equilibrium of the electrode potential, a phenomenon known as polarization. Current density (unit electrode area adopted by the current), the greater the polarization more serious. Polarization phenomenon is caused by the battery energy loss of the important reasons. Polarization for three reasons: ① from the IBM Thinkpad t60 battery cells caused by the various parts of the polarization resistance is called Ohm polarization; ② from the electrode - electrolyte interface layer caused by charge transfer blocked the process of polarization is called activation polarization; ③ from the electrode - electrolyte interface layer caused by slow mass transfer of polarization is called concentration polarization. Reduce the polarization method is to increase the electrode reaction area, reducing the current density, increasing reaction temperature and to improve the catalytic activity of the electrode surface. The article Via Battery Talk |
| Wednesday, September 30th, 2009 | |
| 4:33 pm | The secrets of battery runtime The secrets of battery runtimeIs the runtime of a portable device directly related to the size of the laptop battery? The answer should be 'yes' but in reality, the runtime is governed by other attributes than the specified capacity alone. This paper examines the cause of unexpected downtime and short battery service life. We look at four renegades - declining capacity, increasing internal resistance, elevated self-discharge and premature voltage cut-off on discharge. We evaluate how these regenerative deficiencies affect nickel, lead and lithium-based batteries. The energy storage of a battery can be divided into three imaginary sections consisting of: available energy, the empty zone that can be refilled, and the unusable part (rock content) that increases with aging. Figure 1 illustrates these three sections. Figure 1: Dell laptop Battery charge capacity.Three imaginary sections of a battery consisting of available energy, empty zone and rock content. In nickel-based batteries, the so-called rock content is present in form of crystalline formation, also known as memory. Restoration is possible with a full discharge to one volt per cell. However, if no service is done for four months and longer, a full repair becomes increasingly more difficult the longer service is withheld. To prevent memory, nickel-based batteries should be deep-cycled once every one or two months. Nickel-cadmium and nickel-metal-hydride batteries are used for two-way radios, medical instruments and power tools. Performance degradation of the lead-acid battery is caused by sulfation and grid corrosion. Sulfation is a thin layer that forms on the negative cell plate if the battery is being denied a fully saturated charge. Sulfation can, in part, be corrected with cycling and/or topping charge. The Battery grid corrosion, which occurs on the positive plate, is caused by over-charge. Lead-acid batteries are used for larger portable devices and wheeled applications. Lithium-ion Toshiba laptop batteries lose capacity through cell oxidation, a process that occurs naturally during use and aging. The typical life span of lithium-ion is 2-3 years under normal use. Cool storage a 40% charge minimizes aging. An aged lithium-ion cannot be restored with cycling. Lithium-ion is found in cell phones and mobile computing. Increasing internal Resistance A battery with high internal resistance may still perform adequately on a low current appliance such as a flashlight, portable CD player or wall clock. Digital Camera battery equipment, on the other hand, draw heavy current bursts. Figure 2 simulates low and high internal resistance with a free-flowing and restricted tap. Figure 2: Effects of internal battery resistance.A battery with low internal resistance is able to provide high current on demand. With elevated resistance, the Apple A1045 battery voltage collapses and the equipment cuts off. Nickel-cadmium offers very low internal resistance and delivers high current on demand Apple A1078 . In comparison, nickel-metal-hydride starts with a slightly higher resistance and the readings increase rapidly after 300 to 400 cycles. Lithium-ion has a slightly higher internal resistance than nickel-based batteries. The cobalt system tends to increase the internal resistance as part of aging whereas the manganese (spinel) maintains the resistance throughout Apple laptop battery life but loses capacity through chemical reaction. Cobalt and manganese are used for the positive electrodes. High internal resistance will eventually render the battery useless. The energy may still be present but can no longer be delivered. This condition is permanent and cannot be reversed with cycling. Cool storage at a partial state-of-charged (40%) retards the aging process. The internal resistance of Lead-acid batteries is very low. The A1175 A1185 battery responds well to short current bursts but has difficulty providing a high, sustained load. Over time, the internal resistance increases through sulfation and grid corrosion. Elevated self-discharge All HP laptop batteries suffer from self-discharge, of which nickel-based batteries are among the highest. The loss is asymptotical, meaning that the self-discharge is highest right after charge and then levels off. nickel-based batteries lose 10% to 15% of their capacity in the first 24 hours after charge, then 10% to 15% per month afterwards. One of the best batteries in terms of self-discharge is Lead-acid; it only self-discharges 5% per month. Unfortunately, this chemistry has the lowest energy density and is ill suited for portable applications. Figure 3: Effects of high load impedance.Self-discharge increases with age, high cycle count and elevated temperature. Discard a battery if the self-discharge reaches 30% in 24 hours. The self-discharge on all battery chemistries increase at higher temperatures. Typically, the rate doubles with every 10°C (18°F). A noticeable energy loss occurs if a battery is left in a hot vehicle. Aging and usage also affect self-discharge. nickel-metal-hydride is good for 300-400 cycles, whereas nickel-cadmium may last over 1000 cycles before high self-discharge affects the performance. An older nickel-based Sony laptop battery may lose its energy during the day through self-discharge rather than actual use. Discard a battery if the self-discharge reaches 30% in 24 hours. Nothing can be done to reverse this deficiency. Factors that accelerate self-discharge are damaged separators induced by crystalline formation, allowing the packs to cook while charging, and high cycle count, which promotes swelling in the cell. Lead and lithium-based batteries do not increase the self-discharge with use in the same manner as their nickel-based cousins do. Figure 4: Illustration of equipment with high cut-off voltage.Some portable devices do not utilize all available battery power and leave precious energy behind. High internal battery resistance and the equipment itself are not the only cause of premature voltage cut-off - warm temperature also plays a role by lowering the battery voltage. Other reasons are shorted cells in a multi-cell battery pack and memory on nickel-based batteries. The article is from http://www.batteryuniversity.com/ |
| Wednesday, September 23rd, 2009 | |
| 10:24 am | The New hair battery technology The New hair battery technologyResearchers at the Universties of Miami, Tokyo and Tohoku have discovered a new form of laptop battery. Charged by the application of a very strong magnetic field, the Magnetic Tunnel Junction (MTJ) contains a set of nano-magnets - zones some 5 nanometers across in a zinc-gallium-arsenic-mangnesium matrix - which absorb energy and then release it over time. Although the effect had been predicted, the size and duration of the result was not "We had anticipated the effect, but the device produced a voltage over a hundred times too big and for tens of minutes Apple A1148 , rather than for milliseconds as we had expected," said one of the researchers. "That this was counterintuitive is what lead to our theoretical understanding of what was really going on."
The MJT is the top part of the illustration, and is roughly the same diameter as a human hair compare to Toshiba laptop battery. Beneath that is a magnified image of the central part of the device: the white spots are atoms, and the circles contain the nano-magnets that store the power. Picture: Phan Nam Hai/University of Miami I've yet to dig out the paper in Nature to find out how far this is from being useful as a power source - as the current device is a few hundred micrometers across with IBM laptop battery, it's not going to be storing megawatts. But it's the sort of thing that could be created in vast arrays, like any semiconductor device, and if they're getting to the bottom of the underlying physics then the same effect could be used in many different configurations of Thinkpad Z60T battery. What may be much more interesting than just power storage is the fact, mentioned almost in passing in the press release, that the current delivered by the MTJ is spin-polarised; the electrons are predominately spinning in one direction. That's hot news for spintronics, which we've covered previously and which, together with graphene, has the most exciting potential for fundamentally new computational devices. Spin logic could work much faster at much lower power than even today's finest electronics Dell laptop battery, because it doesn't rely on currents flowing and the consequent unavoidable loss. And, as the researchers say, if this discovery leads to new insights into basic magnetic theory, there are almost no limits to how profoundly it could affect modern life with these Thinkpad R40 battery . Which is a bit over the top - just not that much. |
| 10:24 am | The New hair battery technology The New hair battery technologyResearchers at the Universties of Miami, Tokyo and Tohoku have discovered a new form of laptop battery. Charged by the application of a very strong magnetic field, the Magnetic Tunnel Junction (MTJ) contains a set of nano-magnets - zones some 5 nanometers across in a zinc-gallium-arsenic-mangnesium matrix - which absorb energy and then release it over time. Although the effect had been predicted, the size and duration of the result was not "We had anticipated the effect, but the device produced a voltage over a hundred times too big and for tens of minutes Apple A1148 , rather than for milliseconds as we had expected," said one of the researchers. "That this was counterintuitive is what lead to our theoretical understanding of what was really going on."
The MJT is the top part of the illustration, and is roughly the same diameter as a human hair compare to Toshiba laptop battery. Beneath that is a magnified image of the central part of the device: the white spots are atoms, and the circles contain the nano-magnets that store the power. Picture: Phan Nam Hai/University of Miami I've yet to dig out the paper in Nature to find out how far this is from being useful as a power source - as the current device is a few hundred micrometers across with IBM laptop battery, it's not going to be storing megawatts. But it's the sort of thing that could be created in vast arrays, like any semiconductor device, and if they're getting to the bottom of the underlying physics then the same effect could be used in many different configurations of Thinkpad Z60T battery. What may be much more interesting than just power storage is the fact, mentioned almost in passing in the press release, that the current delivered by the MTJ is spin-polarised; the electrons are predominately spinning in one direction. That's hot news for spintronics, which we've covered previously and which, together with graphene, has the most exciting potential for fundamentally new computational devices. Spin logic could work much faster at much lower power than even today's finest electronics Dell laptop battery, because it doesn't rely on currents flowing and the consequent unavoidable loss. And, as the researchers say, if this discovery leads to new insights into basic magnetic theory, there are almost no limits to how profoundly it could affect modern life with these Thinkpad R40 battery . Which is a bit over the top - just not that much. |
| Monday, September 21st, 2009 | |
| 6:38 pm | How to choose a charger How to choose a chargerMany people when buying rechargeable batteries, a look at the capacity, or look the brand. However, to know that buying a good performance of the rechargeable laptop battery is also a great school of learning. Batteries can be divided into two categories, one category is "one cell", and the other is "secondary battery." "One cell" As the name suggests is the use of no value once the battery, "secondary dell laptop battery" simply means that rechargeable batteries, can charge for further use. Lithium batteries can be understood as digital products, special batteries, its shape according to the design of digital products can be arbitrarily changed, lithium batteries almost no memory effect, and use a long time. However, lithium batteries (Sony PCGA-BP71 Sony PCGA-BP1N) are expensive, and between the different specifications of the lithium batteries can not be generic. In the rechargeable Toshiba PA3451U-1BRS batteries are printed on the surface of a similar mark, indicating this product is what type of battery. NI-MH says that nickel-metal hydride batteries, is actually very simple, NI is the chemical letters Nickel, NH, said hydrogen. By the same token NI-Cd is expressed as a nickel-cadmium batteries. Battery rated capacity refers to a certain discharge conditions, the Sony VGP-BPS9 battery discharge to the release of electricity cut-off voltage. No. 7 currently on the market capacity of the battery 400mAh-900 mAh mostly between the 5 batteries from 1000 mAh-2500 mAh range. Of course, in a sense, the capacity is of course the bigger the better, because of large capacity means longer battery life. It is also noteworthy that, among the different capacities of batteries do not mix. For example, three 2300 mAh of the Dell inspiron 1526 battery batteries 1300 mAh battery, which emit an effective current of only 1300 mAh, from the physics can be very simple to understand this point. The rechargeable Inspiron 640m battery are generally marked on the standard charge time and quick charge time, charging the speed with charger related. Slow charge generally use constant current charging mode, and the battery is full and automatically converted to trickle charge state. Has the advantage of slow charge circuit design is simple and easy to implement, prices are also lower; As a result of low current constant current charging, effectively reducing the pavilion ZV6000 battery charging process in the heat, to extend the battery life is very good. Drawback is the charging time is too long, especially in the case of large quantity of batteries a bit powerless. Fast charge is generally using a large pulse current charging Pavilion DV2000 battery , but because of high current battery charging process will generate polarized responses, leading to the rapid increase in battery temperature, full power on after resume a likely explosion and combustion, so fast charge also uses a special chip to control the charging process of Dell Inspiron e1505 Battery, automatically stop charging once filled so that the whole process of charging has become safe and efficient. In the end is a standard charger or optional fast charger that can be purchased according to the needs of users. Here to remind consumers to purchase brand-name products charger must be, and if I get quick charger fot yoyr Dell Inspiron 6000 Battery,, be sure to understand whether the automatic power-off function. The article Via batteryblog |
| Wednesday, September 16th, 2009 | |
| 12:28 pm | How to use and conservation of GPS built-in lithium battery How to use and conservation of GPS built-in lithium battery1. Do not deliberately GPS built-in lithium Laptop battery that will put clean in the charge, when the system prompted a time of low power can be charged, should be put before the injury for the lithium battery is not small. 2. To use the random charging accessories for charging, do not use third-party charger. 3. Most of the built-in lithium-car GPS, so do not be demolished or converted the laptop battery without permission. 4, as far as possible to avoid the body exposed to extremely high or extremely low temperature environment, but also to avoid the erosion of the liquid. In fact, Car GPS built-in lithium Pavilion DV2000 battery is not your imagination so fragile, so long as a little heart, the conservation and reasonable, built-in lithium battery life can be maintained at three years and change bad habits, we can give built-in lithium battery with the greatest protection, let give full play to their power as a car navigation system to provide a stable life to protect. At present, the market most of the mainstream car GPS with built-in lithium battery power supply. Lithium-ion Toshiba PA3107U-1BRS But lithium-ion Toshiba PA3399U-2BRS battery is not perfect, the use of lithium more stringent environmental requirements, and the high cost of batteries and the discharge current is its relatively small defects can not be ignored. Then, as the use of large lithium-ion batteries: automotive GPS products, the use of lithium batteries that power supply should be careful when there. In daily for VGP-BPS2C battery conservation, and many casual habits could have built-in lithium-vehicle navigation systems cause fatal injuries. So we specialize in power from a vehicle built-in lithium use and conservation aspects of the daily summary of some experiences to share. Many users use the GPS when the car, regardless of the body are used to power the adequacy of the charging of plug in vehicles to use, such use would cause harm lithium batteries in serious even built-in lithium PA3465U-1BRS The right to use is: should wait to run out of electricity, or GPS navigation instrument in itself to give low power to remind the car after the connection charge for charging to use. If your car GPS Car Charger to use the long-term connection, it is best to conduct a full-month charge and discharge, which is run out of Toshiba PA3399U-1BRS power to conduct a full volume of charge, so that the greatest degree of protection can extend the life of lithium batteries. The user has just purchased for GPS products, its appearance in general only 50% of capacity or less. When you first use the Apple laptop battery in I need to put power to make, and then charging an external battery charger, and charge for the first time the best more than 15 hours, the second and the third meeting such as the battery runs out after use, the charging time is best but also more than 12 hours, but it should be noted that charge no more than 24 hours, otherwise the battery will produce a surplus of energy resulting in the internal decomposition of the electrolyte inside the battery voltage increase caused by natural or explosions. In addition, for long-term non-use of the GPS, the Li-ion Sony PCGA-BP2NX PCGA-BP71 will automatically discharge the next best to the battery is full before use after use, so as to avoid over-discharge the battery caused damage. The use of GPS in the process, try to avoid exposure to the body or in a humid environment, the use of harsh external environment would cause instability in Li-ion battery discharge. The article Via battery blog |
| Saturday, September 12th, 2009 | |
| 12:07 pm | Lithium battery explosion reason and prevention Lithium battery explosion reason and preventionAccording to the U.S. well-known science writer Marshall Brain series of articles in the lithium batteries introduction, the vast majority of lithium battery explosion caused by a short circuit, and the specific reasons, including charging overvoltage / over-current use of aging. Lithium laptop battery manufacturing process, because the manufacturing process itself flawed, it is easy to be insulated in this between the two poles, leaving metal dust, copper foil, aluminum foil pieces. The angle is expected in the battery than the fever (more common in long-term use or charging), the like boiling water in a grain of rice, as in the electrolyte to make random thermal motion. If you happen to have the Canon BP-511 battery positive and negative particles or debris near the middle of the diaphragm level, it could create a divide perforation, triggering micro-short circuit. As the batteries are flammable organic electrolytes, micro-short-circuit may cause an explosion, burning and other accidents, generally have the following three cases: 1. Sparks ignited the electrolyte, and thus bring disaster to come into contact with plastic body and flammable, resulting in fire; 2. Was experiencing an increase of temperature caused by the battery, the discount laptop battery inside the space is small, perhaps because of increased pressure to explode; 3. Batteries slower rise in temperature, the battery case to melt gradually, so that corrosive electrolyte leakage. Lithium Dell Inspiron e1505 Battery safety problems can not stop now, because then the advanced manufacturing technology, will inevitably lead to planting the seeds in the electrolyte "missile." Should be noted that the formal sector of lithium battery production and sales have strict norms of acceptable quality lithium batteries, the number and size of debris have been controlled within a small, very low risk of perforation of diaphragm; batteries outside the Shell also used flame-retardant material, is not prone to fire. The explosion-proof lithium battery of measures Lithium Dell Inspiron 6000 Battery safety problems, the battery manufacturer, of course well aware, then what they used explosion-proof measures? Li-ion batteries for notebook computers, for example, its working principle is: Lithium batteries near full charge and discharge almost drained when the voltage drop, the control circuit detects this situation, notify the protection circuit cut off power supply to prevent overcharge or excessive discharge, so as not to shorten battery life. The current notebook lithium batteries possess a more complete multi-level protection mechanism, even in the power charger, notebook computers unusual circumstances, the Dell Inspiron 1300 battery laptop can also be converted to automatic protection status, is generally not an explosion. But once the control circuit and protection circuit of the ability to work reduced hours, the battery on the verge of "dangerous" the. Mobile phones and other electronic products, lithium battery charge and discharge protection mechanisms, similar to this. Do not need it "at arm's length" In recent years, lithium-ion electronic products explosions often found newspapers, aroused a lot of consumer panic, some people for their own mobile phones, MP3 charging often "at arm's length"; also because of fear, simply a long-term will be cast aside Dell laptop battery, cause scrap. However, survey results, the majority of lithium battery explosions are the result of the user pay attention to safety tips, such as unauthorized modification, use of non-matching charger, the A1175 A1079 battery placed in extreme environments such as making. Should be pointed out that the lithium Dell inspiron 9400 battery technology as a kind of after 30 years of study, has successfully commercialized the mature technology, its safety is guaranteed. Regular brands of lithium batteries at the factory will have been numerous Road test procedure after they are sold as well as information feedback mechanism in order to recall the product in question in time. United States Transportation Security Administration (TSA) is given following the recommendations of the safe use of lithium batteries: 1. Using the original charger: Li-ion battery charging time is the high period of bombing. Than the original VGP-BPS5 VGP-BPS2C battery charger is compatible with the battery charger to ensure better security. 2. Use of a reliable battery: try to buy original Sony laptop battery, not to save money to buy "second-hand goods", such batteries may be through maintenance, and reliable than original batteries. 3. Do not place the Latitude D620 battery extreme environments: high temperature, collisions, etc. are all important causes of battery explosion, as far as possible so that the battery is in a stable environment, away from the high-temperature areas. 4. Do not attempt to modify: the phone is a sophisticated communications equipment, in the design, manufacturers will have on its security, strictly textual research. After modification, the battery may be at not taking into account the environment before, an increase of security risks. Via Batterytalk.info |
| Wednesday, September 9th, 2009 | |
| 2:30 pm | Accumulator is no longer pollute the environment Accumulator is no longer pollute the environmentKinds of new acid-free batteries - lead-oxide laptop batteries through the national authority before testing, all targets were met or exceeded the national standard. This means that 150-year-old battery technology was a revolutionary breakthrough, making the traditional lead-acid batteries polluting industries into a zero-pollution environment-friendly industries possible. Lead-oxygen battery is the invention of two brothers - West Cong Zhang, Zhang Sai-wen, who under the leadership of Shaanxi and the Green Energy Technology Co., Ltd. After more than six years of research, finally reaction mechanism of electrolyte in the Dell laptop battery research breakthrough and the preparation of a compound salts out of aqueous solution of diluted sulfuric acid aqueous solution instead of the traditional. Was responsible for this testing is the Ministry of Industry and Information Technology Institute of Chemical Physics Power Product Quality Supervision and Inspection Center, was recognized as authoritative testing organizations within the industry. According to reports, the submission of the three kinds of laptop batteries are the product under the conditions of industrial production (non-laboratory products). They are the cars to start batteries, electric bicycles and electric vehicles power battery special battery, application fields and market prospect is very broad. According to experts, currently used batteries generally can be divided into a dry (normal batteries), secondary HP laptop battery (rechargeable batteries, mainly used in mobile phones, computers), lead-acid batteries (mainly used in automobile, electric vehicles) the three class. With regard to the battery pollution, the masses are most concerned about reports the most ordinary Apple laptop battery. In fact, the production process is now common dry batteries without adding cadmium, lead, arsenic and other substances are no longer become a serious source of pollution. On the contrary, a large number of car battery, lead-acid batteries used in electric vehicles because they contain lead and sulfuric acid, but rather rubbish dump, one of the most dangerous items. It is understood that corrosion of lead-acid battery lead after the spill of heavy metals and acids will not only seriously polluted soil and water, air and the environment, ecological balance can also cause damage, but also trigger the body metabolism, reproductive and neurological aspects of the disease the Dell Inspiron e1505 Batterybattery , the body of lead Once the excessive levels, it will lead to mental decline, but also easy to induce malignant tumors of children, and even lead to death. Compared with the traditional lead-acid Toshiba PA3399U-2BRS batteries, lead batteries of oxygen greatly reduced pollution of the environment. Of Environmental Science and Engineering, Nankai University, Dean Zhou Xing, said lead-acid batteries of the solid, gaseous pollution can be eliminated, but can not avoid the water-soluble heavy metal ions of lead pollution. Lead-oxygen IBM laptop battery although the production process and lead-acid battery production process the same, but thanks to a salt water solution instead of sulfuric acid and lead ion concentration is very low, almost no emissions, greatly reducing the risk of lead contamination. In addition, the lead-oxygen Latitude D620 battery for the replacement of sulfuric acid complex salts and additives can make use of iron and steel enterprises discharge waste from a coal-based chemical synthesis to obtain a simple to solve a number of steel companies can not handle the cost of treatment may need to spend a lot of pollution emissions. Chang brothers have been lead-oxygen Dell Inspiron 1300 battery in three Chinese national patent. The Ministry of Industry and Information Technology Electronic Science and Technology Information Institute points (Science and Technology Novelty Search) shows that the world there is no similar technology. Zhou Xing believes that the world faces an energy and environmental crisis, the advent of lead-oxygen battery of great significance and far-reaching. The article Via batteryblog |
| Monday, September 7th, 2009 | |
| 4:01 pm | Get GBP 5.00 Credit Free Now for your laptop battery Get GBP 5.00 Credit Free Now for your laptop batteryLast Friday I have seen some good news for notebook users in the Google, I searched free battery and see a online shop http://www.laptops-battery.co.uk now offer a coupon for their battery here. In response our thanks to the customers who given support to our company as always, hereby, we organized a big promotion activity to reward each of our valuable customer. Below is the activity introduction for your review:
The Free Credit 5£ most for their Newest laptop battery below : Acer : BTP-44A3 BTP-42C1 BTP-52EW BTP-59A1 BTP-60A1 BTP-63D1 BTP-73E1 Aspire 1400 battery Aspire 3050 battery Aspire 5000 battery Aspire 5560 battery TavelMate 240 battery TavelMate 380 battery TavelMate 2000 battery TavelMate 3300 battery Apple : Ibook G4 battery Ibook G4 12 battery Ibook G4 14 battery Apple A1148 Dell : 1G222 1X793 Inspiron 1420 battery Inspiron 2600 battery Inspiron 1521 battery Inspiron 1721 battery Inspiron E1405 battery Latitude D420 battery Latitude D430 battery Latitude D510 battery Latitude D810 battery Latitude D830 battery GK479 EK890 GW240 RN873 PC764 TC030 HP : PB994A PB992A HSTNN-LB31, Pavilion DV2000 battery, Pavilion DV6000 battery, PB995A, PB991A, EVO N400c battery, EVO N410c battery, EVO N410 battery, Evo N600C, Evo N610C battery, Evo N620C battery, Pavilion DV4 battery, Pavilion DV4T battery, Pavilion DV5 battery, pavilion DV5T battery, Presario CQ40 battery CQ45 battery CQ50 battery CQ60 battery CQ70 battery IBM : Thinkpad R50E battery Thinkpad R50P battery Thinkpad R51 battery Thinkpad R52 battery Thinkpad R60E battery Thinkpad R60I battery Thinkpad R61E battery Thinkpad T43 battery Thinkpad T43P battery 40y6795 40y6797 40y6799 40y6999 40y7001 40y7003 92p1005 92p1011 92p1082 92p1101 92p1102 08k8193 08k8194 08k8195 08k8196 08k8197 08k8198 08k8199 Toshiba : Satellite a100 Satellite a200 Satellite a300 Satellite l200 Satellite l300 pa3176u-1brs pa3191u-1brs pa3191u-1brs pa3191u-3brs pa3284u-1brs pa3285u-2brs pa3285u-3brs pa3356u-1brs pa3356u-2brs pa3356u-3brs pa3395u-1brs pa3421u-1brs pa3420u-1brs pa3450u-1brs pa3506u-1brs pa3475u-1brs pa3476u-1brs pa3534u-1brs pa3535u-1brs pa3682u-1brs pa3536u-1brs pa3537u-1brs pa3479u-1brs pa3480u-1brs The news via BatteryTalk. |
| Saturday, September 5th, 2009 | |
| 11:32 am | 10 **Better** cheap and easy upgrades for your old PC 10 **Better** cheap and easy upgrades for your old PC In response to a submission on digg.com entitled “10 cheap and easy upgrades for your old PC”, user gaqua posted a “better” list in the comments that I found funny enough to want to give it its own post on my meaningless blog. Here’s a better list. 1 - Clean up your shit, dad. I’m tired of coming over and finding a new toolbar on IE or Firefox every time. I’m tired of thirty icons in the systray, half of which have some bizarre relevance to programs that are no longer installed. Go to add/remove programs, and remove anything you don’t use in your Apple Powerbook G4 battery. 2 - Defrag that shit. 74% fragmented. SERIOUSLY? How is that even possible? I’m scheduling this for every Wednesday night at 10pm dad. I know it’s going to freak you out when it starts doing this all on its own but just leave it alone and let it do its magic. 3 - 512MB of RAM? Do you know how cheap RAM of VGP-BPS2C is? PC2700 DDR1? Oh my God…I think I might throw up. For $50 I can get you to 2GB of RAM. $50. 4 - I’m installing Ad-Aware and Spybot Search & Destroy - your system has over 200 known spyware problems. I’m fixing them. I’m making this Inspiron 6000 Battery bulletproof. Don’t fuck with it anymore. I’m installing AVG anti-virus. It’s going to ask you to update it - UPDATE IT WHEN IT ASKS. 5 - Holy shit I can’t believe this - you’re running XP without even SP1 installed. I’m installing SP3 for D5318 Sony NP-BG1, Dad. It’s a lot more secure. Jesus christ this is like the dark ages of computing. 6 - Oh fucking shit - 3 hours to download? What the fuck - you’re still on that 512k DSL? Mom is paying for Cable! She’s paying for Cable internet, Dad. I’m going to unplug this wire from the DSL modem and plug it into the cable modem of A1175 A1079. Yeah. No it’s very easy. And I’m calling AT&T and canceling DSL. There, I just saved you $50 a month. And yeah, the internet is faster. 7 - Oh look 360tyj.com, you have a cutesy animated desktop background. Yeah, your celeron 1.6 GHz probably doesn’t like that, especially with the 16MB integrated graphics. I’m going to turn that off. I know, I know. But it’s best for everyone. HOLY SHIT YOUR COMPUTER IS FASTER NOW DAD. Please, tell everyone in the family that you “don’t know what he did but the computer is so much better, you should call him and have him come take a look, I’m sure he’d be happy to Latitude D600 battery!” There’s nothing I love more than that, dad. I love fixing Uncle Butch’s disgusting laptop with the inexplicably stained keys and I love playing around with the disgusting beige eMachine that Aunt Patsy uses to send all those cool inspirational email forwards with pictures of kittens or penguins or koalas or pandas. No, I understand. As the oldest and most computer knowledgeable of Latitude D620 battery , it’s my responsibility. Just like Uncle Mason would help us all out if we got into legal trouble right? Well, if he weren’t disbarred for fraud, I mean. |
| Tuesday, September 1st, 2009 | |
| 11:13 am | The Digital camera battery daily maintenance The Digital camera battery daily maintenanceAt present, there are two types of digital camera batteries, professional lithium batteries and 5 AA batteries. The professional lithium battery is very light, high capacity, environmental protection, and no memory effect, but the price is expensive, and can’t be use generally. Ni-Mh battery with high capacity, and discharge deeply, and durable to charge and discharge, short charge time and other obvious advantage. The most important of all is cheap and can be use generally.
The Original post from : http://www.digitalcamerabattery.us/ No matter what kind of Sony NP-BG1 battery, as long as it company sale with digital camera, the user manual will indicate the attention items, some manufacturers even print out a single user guide of Canon BP-511 battery, and charger. Those manual are the basic but useful maintain instruction, such as the charge method, charge time of the battery. It is necessary for the new users to take few times to read it. Normal users don’t have a professional bag to store the Kodak KLIC-5001 battery when use the digital camera, they usually put the battery randomly no matter the place is clean or wet after replace the battery. It is easy to dirty the battery, and contact with metal things, such as key, it also maybe wet, those are the enemy of battery. Suggestion: User should find a professional position for the Casio NP-30 battery, and keep its clean. In order to avoid the power losing or any other problem, keep clean of battery two side touch point and battery cover, you can clean it with soft dry cloth when necessary. If long time no need to use the digital camera, then you must take out the Fujifilm NP-40 battery from the camera and store it in dry and cool environment. Regarding the Ni-Mh battery, it should be discharged fully then store it or store it with power? The two different point, should adopt which one? A lot of people choose the former, but I think it is more reasonable to store the battery with power. Because according to the test, the best condition of storing a Ni-Mh Olympus Li-12b battery is with 80% power. This is due to the Ni-Mh battery discharge itself at 10-15% monthly. As you can as well, the new Ni-Mh battery always have power, it is the same reason. Via Digital blog |
| Wednesday, August 26th, 2009 | |
| 10:57 am | Two new camera products from Kodak Two new camera products from KodakKodak issued 3 new type digital camera battery products in August, Kodak Z950 with ultraportable body, 10 times optical zoom, 3 inch LCD and HD video shooting function, Kodak M381 featured with 5 times optical zoom and 3 inch LCD, Kodak M341 with 3 inch LCD and 3 times optical zoom, they all use lithium batteries as Sony NP-BG1, Canon BP-511, Kodak KLIC-5001.
Kodak Z950 possess 12.00 million pixel imaging ability, have scene recognition function, quick-starting function enable the power on to shooting only use 0.03 second, the best ISO reach to ISO3200, and card form body design is more favorable for outdoor travelling.
Kodak M381 also have 12.00 million pixel imaging ability, excellent 3 inch LCD display effect, it possess 5 faces reorganization ability at most,It can work about 3hours with Kodak KLIC-5001, the photo and video file can be upload to video website as well. The original link Via Digital blog |
| Friday, August 21st, 2009 | |
| 12:03 pm | Electric vehicle battery trouble Electric vehicle battery troubleAt present, Many customers like to buy electric vehicles as their advantages such as light and non-polluting . Mileage measuring of electric vehicles is one main criteria of quality, while the laptop battery is the decisive factors of mileage of the length. In the quality of the many complaints of electric vehicles, more than 95% of the problem is about laptop batteries, what is the wrong of problem? "Battery Rehabilitation centers" professionals point out that where the problem lies : factory competitive price , reduce the battery cost. Electric vehicle manufacturers generally use the Dell inspiron 6400 battery that provided by professionals battery manufacturers. Different brands and different manufacturers vary the battery quality. Some manufacturers to participate in market competition and reduce the costs of battery, which is a direct consequence of causing the battery due to jerry-built quality. Low After-sales service In accordance with the relevant provisions,Dell Inspiron 6000 Battery electric vehicles as the main components, a corresponding quality of the guarantee period. The failure of the battery during the warranty period, producers should assume responsibility. In real life, some merchants or manufacturers have neither the expertise battery maintenance, the warranty period of batteries do not seriously addressed, consumers are asked to pay only for the battery. Consumers do not know the proper use of batteries Some consumers improper use of Ibook G4 12 battery . One is the longer charging time the more adequate electricity; second a long time electricity loss, only charge the battery until exhaust; Third, the temperature too high or too low when charging; Fourth, pay no attention to the battery regular inspection and maintenance. How to properly charge and discharge The right to use a certain extent, can play the role of extended battery life. Are on the correct use to be a brief introduction: Should not have been riding on the charge Battery life is a decision to charge and discharge cycles. Therefore, do not charge the Ibook G4 14 battery when used, it should be charge the battery at 60% -70% exercise of mileage . Second, the charging time should not be too long Many electric vehicles users think that the longer charging time can fully charge the VGP-BPS3 battery . This is very wrong. Charging time generally extended one hour after the lights change. Over a long period of battery charge easily lead to deformation, water loss and so on. Directly reduce the Pavilion ZD7000 battery life. Third, it is best to use Smart Socket Many electric vehicle users charge the battery when back home and cut off power when go to work the next day , in fact, most of the charger can not guarantee 100% automatically when the battery is fully charged. The best way is to buy smart sockets, Set the charging time for Sony NP-BG1, Canon BP-511, Kodak KLIC-5001 . Dont use the electinic vehicles when power loss Some users only charging the battery when power exhaust, it can damage the battery performance deeply. Fifth, do not charge the battery when temperature too high or too low. The process of charging, the battery itself will have a small amount of heat, high temperatures in the charging will increases bottle body temperature, that damage to the battery performance. Temperature is too low. Battery active is not enough, lack of battery power, increase the charge-discharge cycles and shorten Pavilion dv4000 battery life. |
| Saturday, August 8th, 2009 | |
| 11:22 am | Why recycle the used batteries Why recycle the used batteriesBatteries are all over the place, we can see it in all kinds of electronic devices. A laptop battery is an electrochemical device to convert chemical energy to electrical energy to provide power to our electronic devices. The chemical used in battery will pollute the environment heavily if the batteries are improperly disposed of. In this article will show you how to safety disposed and recycled a used battery. Environmental Hazards of Household BatteriesThere are more and more batteries using in our household. A laptop battery is an electrochemical device to convert chemical energy to electrical energy to provide power to our electronic devices. Batteries contain heavy metals such as mercury, lead, cadmium, and nickel, which can heavily pollute the environment when batteries are improperly disposed of. Batteries may produce the following environmental hazards: What you can do before buying new batteriesSo, do you wonder what you can do before buying the new Inspiron 1520 battery to prevent waste and lower the environmental impact of your hand. Here will provide some of the recommendation for you. Buy batteries that have less mercury and heavy metals. The batteries now are reformulated to reduce the usage of mercury. Some batteries such as the alkaline inspiron 1525 battery have had about a 97 percent mercury reduction in the product. Newer alkaline batteries may contain about one-tenth the amount of mercury previously contained in the typical alkaline battery. Some alkaline batteries have zero-added mercury, and several mercury-free, heavy-duty, carbon-zinc batteries are on the market. Try to not buy more batteries when you already have enough battery on hand. Most of the people likes to buy more batteries and store it at home but it will not be using in some time. This is a waste and will increase the risk of battery pollution in your house. Consider using of rechargeable batteries. Rechargeable batteries as inspiron 1300 battery, inspiron b120 battery, inspiron b130 battery has longer life span and use fewer batteries. However rechargeable batteries still contain heavy metals such as nickel-cadmium. When disposing of rechargeable batteries, recycle if possible. The article is from http://www.squidoo.com/recycle-battery |
| Wednesday, August 5th, 2009 | |
| 12:25 pm | Electric vehicle battery support skills Electric vehicle battery support skills1. Dont store the Electric vehicle battery in powerlessIt is prohibited that store the laptop battery in a state of loss. State power loss is the failure to charge battery in time after use. Stored in the battery state of loss, it is prone to sulfate and lead sulfate crystals attached to the pole on the board, plug the electric ion channels, resulting in under-charging, the battery capacity decline. Idle state power loss the longer the more serious battery damage. Therefore, the battery should be charged fully once a month when not in use, so that the battery can keep in a good health state. 2. regular inspection in timeIn the use of process, if the continued line of electric vehicles in a short period of time a sudden drop in mileage of more than ten kilometers, it is likely that the battery pack at least one battery cell appears broken, soft plate, plate active material shedding phenomenon, such as short-circuit . At this point, the battery should be repaired in time to the professional bodies to check, repair or distribution group. This can be relatively extended life Dell laptop battery to maximize cost savings. 3. avoid large current dischargeElectric cars at the starting line, manned, uphill, please use pedal power to help avoid a momentary high-current discharge. High-current discharge easily lead to lead sulfate crystallization, to the detriment of the physical properties of the laptop battery plate. 4. keeping right charging timeIn the use of process, should be based on the actual situation accurately grasp the charging time, frequency and use of reference normal mileage situation and pay attention to the capacity of the battery manufacturers to provide the size of note, as well as matching the performance of the charger, the charge current to grasp the size of charging parameters Pavilion DV1000 battery HP Pavilion DV4000 battery such as frequency . Generally batteries are recharged at night, with an average charging time in about eight hours. If shallow discharge (charge mileage after a very short period), the battery will soon be full of and continue to charge-off charge will appear, and that leads to cell loss, fever, lower battery life. Therefore, in order to discharge the HP laptop battery depth of -70% to 60% when an electric charge the best, the actual use can be converted into cycling mileage, according to the need to charge the actual situation, to avoid charging damage. 5. prevent exposureElectric vehicles is prohibited under the sun exposure. Environment temperature is too high will increase the internal pressure of the battery cell pressure limiting valve automatically opens, is a direct consequence of the loss of water to increase the Toshiba laoptop battery, and battery cell over-activity of water is bound to trigger a decline to speed up the plate to soften, charging shell body fever, from drum shell, deformation, such as a fatal injury. 6. avoid charging plug feverCharger output plug loose contact will lead to the phenomenon of oxidation, such as charging plug fever, fever for too long will lead to short-circuit plug charging, direct damage to the Sony laptop battery charger, lead to unnecessary losses. So when found out that the situation should be promptly or replace the connector to remove oxides. TrackBack : laptop battery blog |
| Saturday, August 1st, 2009 | |
| 12:30 pm | Zen and the Art of Laptop Battery Maintenance Zen and the Art of Laptop Battery MaintenanceKeep your notebook or netbook's power pack in tuneWe all own more battery powered products than ever before, and in most cases those laptop batteries are rechargeable. Laptops, music players, phones - they all have rechargeable power packs, almost all of them using lithium. These batteries don't last forever. No matter what you do, their capacity to hold charge will decline over time, typically down to 80 per cent after 12-18 months in the case of laptop batteries.
That's a range, not an absolute cut-off point, so how can we make these batteries last as long as possible? Ignoring the exceedingly rare risk of a fire, is there any way to ensure we get the best performance from our portable power supplies? Follow some basic rules, and the answer is yes. The model usage pattern is the mobile phone. Of all the rechargeable laptop batteries we've used, the ones in phones have always proved to retain their capacity longer than batteries in laptops, cameras and MP3 players. It takes a long time, generally speaking, for a phone battery to reach the point where no matter how long you charge it, it goes from full to empty in a very short space of time. Contrast that with the netbook battery sitting next to us, which although less than a year old will discharge from full in under 20 minutes. That's with the netbook just sitting there, screen on, connected to the internet. It should last eight times that. The keys to pa3420u-1brs battery longevity are regular usage and making sure cells are recharged before they become empty. Phone batteries typically take a couple of days to run down and tend not to be constantly on and off the charger during that period. Rather than waiting until the phone has so little power it switches off, most handset owners recharge their phones when they get a low-charge warning, usually around ten per cent capacity.
This ensures a steady, even cycle of charge and discharge, and if there's an operating condition lithium batteries respond well to it's regularity. The 6t473 Laptop batteries won't, of course, give you two days of usage, so it's not necessarily practical to follow that charge-discharge-recharge pattern exactly, but you can get close. Make sure you regularly use your laptop on battery power. Don't work on it with it always plugged into the mains.
If you do use the mains as your primary power source - as you might well if the notebook's your main machine - at least make sure you use your laptop on HP Pavilion DV4000 battery power a couple of times a week. This is what we didn't do with the netbook. It has stayed attached to its AC adaptor for most of its life, with the battery barely being used. The connected battery will charge to 100 per cent and then the battery pack's electronics will ensure the cells receive no further charge. At this point, the biggest threat to the battery is heat from the laptop's internals. Make sure your laptop's vents don't become covered. Beyond the heat generated by its operation, a laptop can safely be left connected to the mains. There's no harm in removing the battery from a laptop that's going to stay connected to the mains for a while. Just make a note of the optimum HP Pavilion DV1000 battery storage conditions - more on this later - and don't inadvertently yank the power cable. With no battery, there's no back-up for your laptop's memory. Apple machines are an exception, and others may be too: they auto-underclock the processor when the battery's removed, so despite being connected to the mains, they won't run at full strength. We think that's daft, but that's Apple for you. When you use your laptop on PB995A battery power, make sure its charge drops to at least 80 per cent. But don't let it drop to zero. Depending on which operating system you use and how its power settings are configured, you'll get a low-power warning first and, later, your machine will sleep, hibernate or shut down. At this point, your battery should still be charged to 5-10 per cent of its capacity, and you should now charge it, whether you want to continue working or not. If you're not going to be able to do so for some time, make sure you've saved your work and your laptop's shut down or hibernating rather than sleeping. These two modes turn the laptop off whereas sleeping just keeps it ticking over, but power is still being drained and you run the risk of emptying the battery. Completely draining the battery is a no-no. Battery manufacturers and laptop makers say that it's a good idea to drain the HP Pavilion ZV5000 battery as far as the laptop will allow every so often and to then charge fully in order to synchronise the various capacity monitors within the power pack and the laptop. That ensures that your capacity read-outs are as accurate as they can be. There seems to be a consensus that daily-use laptops don't really need this, and certainly not on even a monthly basis. Occasional-use laptops, on the other hand, may benefit. Eking out the charge while your using your computer on Pavilion ZV5000 battery power is simply a matter of disabling Bluetooth and Wi-Fi if you don't need them, making sure your system spins down the hard drive when it's not required, and - perhaps best of all - dimming the screen's backlight. How temperature affects a battery's capacity decline If running to empty or never discharging at all are to be avoided, high temperatures are right out. Batteries' inevitable capacity decline can be slowed by keeping the inspiron 1150 battery cool According to website Battery University, a battery kept full will see its capacity drop by six per cent after a year if it's kept at freezing point. Kept at 60°C, however, the same battery will lose 40 per cent of its capacity to hold charge after just three months. At 25°C, you're looking at a 20 per cent capacity loss after one year. Since your working environment is likely to be less than 25°C, the reduction will you see will be a little less than that, and by making sure the Toshiba PA3107U-1BRS battery is used regularly and evenly, you should be able to delay the point at which the battery has only 80 per cent of its starting capacity to 18 months or more.
Hot-running laptops will have the reverse effect, so if your notebook's like that, consider buying a cooling stand to help draw heat away from the machine and Compaq Presario V4000 battery. Don't keep your laptop in a hot car cabin, or in direct sunlight. If your laptop's going to remain unused for a long period, keep it cool. Never freeze it, but sticking the battery in the fridge, for example, will prolong its life. Battery manufacturers recommend storing batteries with a charge level of 40-50 per cent. If you do refrigerate a Pavilion ZD8000 battery, don't start using it as soon as you take it out again. Leave it several hours to warm up to room temperature first. Rapid warming could cause condensation, and you don't want moisture forming inside your battery pack or laptop. If you have a spare battery pack handy, keep it cool and charged to 40-50 per cent of its maximum capacity until you're ready to take it on your travels. At that point, charge it up and use it as often as you use the other battery, so they both undergo regular charge and discharge cycles. Charge Cycles ExplainedBattery longevity - how long the battery lasts rather than how long it'll power a device from a full charge - is typically measured in cycles, with one cycle being a discharge from full to empty. This doesn't need to happen all at once. A cycle is reached when 100 per cent of a Latitude D800 battery's potential capacity has been taken, even if it's charged up in the meantime. If you drain a battery by half one day, charge it back up, take 25 per cent the next day, charge it up again then drain it by a quarter on the third day, that's one cycle: 50 per cent + 25 per cent + 25 per cent. That might suggest the best way to eke out cycles isn't to discharge the battery too much, but don't forget, lithium-based Dell laptop battery like to be used, not left on 100 per cent all the time. Laptop makers typically say a machine's battery capacity will have declined to 80 per cent of its original capacity after 300-odd cycles. |
| Tuesday, July 28th, 2009 | |
| 10:47 am | How to Open a Laptop Battery & Replace the Lithium Ion How to Open a Laptop Battery & Replace the Lithium Ion
Laptop batteries, like all rechargeable battery packs, lose their charging capacity over time. Because new laptop batteries are expensive, replacing the individual cells inside the battery casing can save a lot of money. However, rebuilding a battery sometimes does not work as expected, so it's important to be willing to purchase a new laptop battery if the procedure fails. 1. Allow the laptop battery to run down completely. Turn off your laptop, then remove the battery. Write down the model number located on your Latitude D800 battery to help identify the type of Li-ion replacement cells you need to purchase. 2. Split open a small section of the Latitude D800 battery pack (at the seam) with a screwdriver or craft knife. Continue to pry the plastic case loose moving around the outer edge until the entire top is free. This may take a bit of force. 3. Note the number of cells inside the case (usually four to eight). Write down the part number and voltage information printed on the Toshiba PA3107U-1BRS cell casings. Draw a diagram showing the arrangement of the cells and how they are connected, or take a few photos to help with reassembly. 4. Purchase the correct number and type replacement batteries from a local or online dealer, based on your battery model and cell specifications. Six Li-ion cells typically cost around $30 to $40. 5. Carefully remove each cell using a craft knife and wire cutters as necessary. Each Toshiba PA2487U battery pack is different, but the cells are usually wrapped in a plastic casing with metal contacts attached to one end. Lay the metal contacts, wires and casing material aside. 6. Use double-sided tape or a solder gun (only if necessary) to attach the metal contacts to the cells and circuit board. When finished, the old cells should be completely stripped (naked) and the new cells should look like the old ones as much as possible. 7. Place the new Discount laptop battery cells inside the case, referring to your diagram or photos if necessary. Glue the battery pack top back on. Charge the new battery for at least 24 hours before using it. Keep an eye on the new battery while it charges for the first time. If the contacts are not connected properly, the battery could overheat and cause damage to the laptop. |
| Tuesday, July 21st, 2009 | |
| 12:17 pm | How to replace battery cells inside laptop battery How to replace battery cells inside laptop batteryIn the last article, we have introduced "how to hack dead laptop battery" to our readers, but it is too simple. Now we write a detail article about " how to replace battery cells inside laptop battery". At present, there are many articles about "how to purchase and use laptop battery" on the network , but there are too less article about "how to repaire laptop battery". For this reason, we decided to write a article about,laptop battery repair industry to help notebook users know what to do when laptop battery broken. To notebook the battery is very important as the mobile work. The notebook become to desktop without laptop battery. There are battery cells and protection board in laptop battery inside. The batteries cells supply the power and the proctection panels protect the board safety when charging. Battery cells are consumable items, the capacity reduce in each using, which directly determine the quality of notebook batteries. Notebook battery life short suddenly , cant work, laptop battery down suddenly (such as: battery capactiy suddenly reduce from 40% to 10% when working), laptop battery cant be fully charged,notebook battery cant be fully discharged (the notebook closed when the battery power state in 40% or more), the above cases may be caused by batteries capacity declining or batteries cells damage. Of course, there may be due to damage of the protection board, but this possibility is very small.
If you find that above failure happened to your notebook, it is necessary to check your laptop battery in laptop battery maintenance business. Now, let me introduce the whole process of laptop battery cells changing (for example Thinkpad T40 battery) .
Before the battery cells changing, We would like to tell you about the structure of the notebook battery.
In general, notebook battery can be divided into three parts: the shell, batteries and protection board。
Battery shell. That is notebook battery casing. There are different three types: type, ultrasonic bonding and adhesive bonding type.
Decrypt and unlock the protection board are two different works. Before you go into the battery management system you must decrypt the protection board, unlock the battery management system in order to change the parameters of the battery and use of information. If you only change batteries cells without unlock, you can not achieve satisfactory results (for example: the battery can only charge to the state "the last full charge capacity", the battery maintenance management information will be displayed the charged number)
If the protection board hardware damaged , we would also use oscilloscope, multimeter and logic analyzer
After the deal with the batteries protection board , let me introduce the method to choose the right cells. We must use sub-meter cabinet and the internal resistance to check batteries capacity resistance, separation voltage, select out all specs of parameters for comparison with similar groups. Also the thinkpad R50 battery
Then we will use the spot-welding and Nickel sheet to joint the batteries cells together.
After unlock and decrypt the protection board, connect the battery cells group. We can assemble the shell protection board and cells together.
During the assemble, you must take high attention. The steps is also suitable for IBM 40Y6795 After doing the above steps, the battery cells changing is compeleted. The repaired battery quality is the new battery in most function, so you must calibrate it first. Generally, you should fully charged in 1o hours then full discharge it 2-3 times. Trackback: laptop battery blog |
| Wednesday, July 15th, 2009 | |
| 11:03 am | New battery can not be fully charged New battery can not be fully chargedGenerally the new battery can 100% fully discharge-charge. Last month I buy a latitude d820 battery replacement, as my work dont need to take the notebook out, so I use the notebook with the AC adapter and I store the battery in my drawer. Last Friday, I want to visite my customer with my notebook and show some business projects. So I charged my battery for a whole night, but I only see my battery 70% capacity state charged next morning. My battery is really new, why it can not be 100% charged? So I query the battery expert Jack Smith that the reason "Why new battery can not be fully charged?". He said that : after the laptop battery not use for a long time, the battery charge must in the low current in the right system power option. And then he give me some adviese to set the power Option. Now I introduce the tips for my readers step by step with detail photos. A .windows xp system:1) Go to Start/Control Panel/Power Options and look for the "Alarms" tab. B: Windows vistar system:1) Go to Start/Control Panel/Power Options/Edit Plan Settings /Battery/Low battery action/Do nothing. In the end if you still cant fully charge your laptop battery, you can calibrate the battery and then use the battery fresh program to refresh your battery to calibrate the battery charge-discharge time. TrackBack: laptop battery blog |
| Monday, July 13th, 2009 | |
| 3:13 pm | Hack laptop battery notice Hack laptop battery noticeIn the last article, We introduce the way "How to hack dead laptop battery". But as far as we know the hack battery is a dangerous and perplexing work for the professional guy. Most of us only know how to take apart the battery pack and solder the cells to the circuit board, this may cause some damage to electrocircuit. After using for a long time, the laptop battery (A1175) capacity would reduce, resulting in shortened life of the notebook. This is mainly caused by an internal battery batteries aging failure. In serious condition, we cant solve the problem by battery calibration procedures or repeatedly charging and discharging. For this issue, many fans will open the battery case, to find the failure and replace batteries cells, they think that will be able to solve the problem. The actual situation is really so? Carefully Replace the battery cellsMost laptop battery are made up of lithium-ion batteries cells, and lithium-ion VGP-BPS5A battery life is basically a constant, only 500 ~ 800 times charge life. Therefore, if the regular use of batteries for notebook power supply, 1 ~ 2 years later, due to the internal battery aging, it is easy to achieve the life of the batteries expire. Although we have detected in the open cell batteries, the show is a one or two damaged batteries. even if you replace the failure batteries, the battery return back to normal in a short period of time, it can not be used again soon as the entire failure of other batteries. In that case, replace all the internal laptop battery can solve the problem? In fact, it is difficult to do this. Because in the original battery, its internal batteries is a precise match, and the capacity of batteries, terminal voltage and internal resistance are in a good consistency. And the battery we buy in the market has not been tested and matched, we can not matching for the batteries under the amateur condition, so the capacity, internal resistance and other parameters will inevitably vary. In the internal battery, the batteries are charged together after the series (in the majority of notebook batteries, the batteries will be divided into eight groups, four in series and then parallel to form a battery pack), as a result of the rechargeable battery the same current, in which the smallest capacity batteries will of course be full of electricity, while the other is not enough battery power, the battery terminal voltage can not set the voltage, charging circuit will continue to charge Vaio VGN-SZ battery pack. In this way, the original fully charged rechargeable batteries will be over-charged. To reduce the charge time, the current of laptop charging circuit is very big, it will produce great heat when charging, so the liquid 40Y6795 batteries temperature and pressure rise, internal electrolyte easily dry or overflow , so the batteries capacity decline and even explose. The total storage capacity of the battery determined by one of the smallest capacity batteries, and this will turn into a vicious cycle, after repeated charge-discharge, the entire battery capacity will significantly decline. At the same time, a number of laptop batteries in order to prevent unauthorized users to open the replacement of Dell D820 batteries, have the smart chip protection and anti-line openings. As long as the shell to open the battery or batteries from the battery in the circuit board removed, intelligent protection circuit will stop the output of the battery. Even if we put the batteries back to the battery circuit board or close the battery case, the protection of its smart chip still can not be restored. In this way, the battery will not be able to normal output. We need to reset the smart chip in order to solve this problem, but the amateur conditions, we are unable to reset the smart chip. Therefore, from time to time change batteries cell may cause permanent damage to the battery. So, how do we solve the battery problem? The best way is to buy a new original battery, but now a new original Thinkpad R50 battery or even a few thousand dollars, to spend so much money is too high, exceeding the carrying capacity of many consumers. However, there are a number of professional notebook repair station, its equipment and technology are good, but there are some repair stations and manufacturers of batteries there is a long-term cooperative relations, the battery can be manufactured to precise matching. This will ensure the maintenance of quality. In these places the price of batteries for about 300 million, although replacement of batteries on their own to higher prices, but will keep the Thinkpad T41 battery's long-term use. In addition, some maintenance stations for maintenance had also carried out a six-month battery warranty. And we use these six months, as long as there are a hundred times to ensure that the battery charge and discharge around, and battery capacity and stability during this period, then after the battery will enter a stable period, the damage is not easy. Have know-how to maintain the battery In any case, replace the batteries do not need our small price to pay, so we have to use in day-to-day attention to the maintenance of the battery to extend battery life. To protect the battery, first of all to reduce the number of Thinkpad T42 battery, that is to say when in the city, do not use the battery as much as possible. This can reduce the number of battery charge and discharge, longer battery life. While this caused some inconvenience to use, but every time you think about the use of batteries, need money to pay two dollars, or you take it easy. The internal structure of the batteryBattery calibration procedures can extend the PCGA-BP2V battery life, has been a subject of heated discussion. Support the view that correction can eliminate the battery memory effect of batteries to extend battery life. The opponents believe that the use of lithium-ion batteries have no memory effect, so the correction process will only increase the number of battery charge and discharge and shorten battery life. In fact, understanding these two are not comprehensive. Although lithium-ion batteries to reduce the memory effect, but the memory effect still exists. Indeed the PCGA-BP4V battery calibration can reduce the memory effect, but this is not the most important, the battery calibration procedure is to establish the main functions of the battery and control circuit so that the control circuit can correctly identify the capacity of the battery, so to avoid battery overcharge or over-discharge phenomenon. At the same time, the system can also be exhausted before the battery shutdown to protect data security. However, the frequent use of battery calibration procedures will increase the number of battery charge and discharge. Therefore, we run once every three months about the battery calibration procedures it. We in the use of batteries for notebook power supply or power adapter for charging the Sony laptop battery, do not unplug the notebook's battery. Because the battery is charging or discharging state, the currents are very large, if we try to plug the battery, then, it is easy to have a spark, not only will cause contact of ablation, may also be caused by the impact of current circuit board or battery laptop charging circuit damage. In addition, many people there are still some misunderstanding on the use of batteries. For example, the "new purchase to go through the Apple laptop battery charging and discharging several times to activate," "notebook batteries do need to put a" matter of fact, with the memory effect of lithium batteries and battery to reduce the improvement of internal protection circuits. These factors impact on the battery capacity has been very small, we run on a regular basis as long as the battery calibration procedure of these operations will be able to eliminate the impact of the battery, so we need not care too much for this purpose to wait on your notebook, after all, the battery is used used. Trackback: notebook battery review |
