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Jul 8, 2009
Top 15 Ways to Extend Your Laptop¡¯s Battery Life
First post by: www.itsbattery.com Laptops tend to lose their charm quickly when you¡¯re constantly looking for the nearest power outlet to charge up. How do you keep your battery going for as long as possible? Here are 15 easy ways to do so. 1. Defrag regularly - The faster your hard drive does its work - less demand dell 1691P battery you are going to put on the hard drive and your battery. Make your hard drive as efficient as possible by defragging it regularly. (but not while it¡¯s on battery of course!) Mac OSX is better built to handle fragmentation so it may not be very applicable for Apple systems. 2. Dim your screen - Most laptops come with the ability to dim your laptop screen. Some even come with ways to modify CPU and cooling performance. Cut them down to the lowest level you can tolerate to squeeze out some extra battery juice. 3. Cut down on programs running in the background. Itunes, Desktop Search, etc. All these add to the CPU load and cut down battery life. Shut dell 75UYF battery down everything that isn¡¯t crucial when you¡¯re on battery. 4. Cut down external devices - USB devices (including your mouse) & WiFi drain down your laptop battery. Remove or shut them down when not in use. It goes without saying that charging other devices (like your iPod) with your laptop when on battery is a surefire way of quickly wiping out the charge on your laptop battery. 5. Add more RAM - This will allow you to process more with the memory your laptop has, rather than relying on virtual memory. Virtual memory results in hard drive use, and is much less power efficient. Note that adding more RAM will consume more energy, so this is most applicable if you do need to run memory intensive programs which actually require heavy usage of virtual memory. 6. Run off a hard drive rather than CD/DVD - As power consuming as hard drives are, CD and DVD drives are worse. Even having one in the drive can be power consuming. They spin, taking power, even when they?re not actively being used. Wherever possible, try to run on virtual dell 5081P battery drives using programs like Alcohol 120% rather than optical ones. 7. Keep the battery contacts clean: Clean your battery¡¯s metal contacts every couple of months with a cloth moistened with rubbing alcohol. This keeps the transfer of power from your battery more efficient. 8. Take care of your battery - Exercise the Battery. Do not leave a charged battery dormant for long periods of time. Once charged, you should at least use the battery at least once every two to three weeks. Also, do not let a Li-On battery completely discharge. (Discharing is only for older batteries with memory effects) 9. Hibernate not standby - Although placing a laptop in standby mode saves some power and you can instantly resume where you dell Inspiron 700m battery left off, it doesn¡¯t save anywhere as much power as the hibernate function does. Hibernating a PC will actually save your PC¡¯s state as it is, and completely shut itself down. 10. Keep operating temperature down - Your laptop operates more efficiently when it¡¯s cooler. Clean out your air vents with a cloth or keyboard cleaner, or refer to some extra tips by LapTopMag.com. 11. Set up and optimize your power options - Go to ¡®Power Options¡¯ in your dell Inspiron 710m battery windows control panel and set it up so that power usage is optimized (Select the ¡®max battery¡¯ for maximum effect). 12. Don¡¯t multitask - Do one thing at a time when you¡¯re on battery. Rather than working on a spreadsheet, letting your email client run in the background and listening to your latest set of MP3¡¯s, set your mind to one thing only. If you don¡¯t you¡¯ll only drain out your batteries before anything gets completed! 13. Go easy on the PC demands - The more you demand from your PC. Passive activities like email and word processing consume much less power than gaming or playing a DVD. If you¡¯ve got a single battery charge - pick your priorities wisely. 14. Get yourself a more efficient laptop - Laptops are getting more and more dell F5136 battery efficient in nature to the point where some manufacturers are talking about all day long batteries. Picking up a newer more efficient laptop to replace an aging one is usually a quick fix. 15. Prevent the Memory Effect - If you¡¯re using a very old laptop, you¡¯ll want to prevent the ¡®memory effect¡¯ - Keep the battery healthy by fully charging and then fully discharging it at least once every two to three weeks. Exceptions to the rule are Li-Ion batteries (which most laptops have) which do not suffer from the memory effect. Bonus Tip #1: Turn off the autosave function. MS-Word¡¯s and Excel¡¯s autosave functions are great but because they keep saving regular intervals, they work your hard dell 312-0306 battery driver harder than it may have to. If you plan to do this, you may want to turn it back on as the battery runs low. While it saves battery life in the beginning, you will want to make sure your work is saved when your battery dies. Bonus Tip #2: Lower the graphics use. You can do this by changing the screen resolution and shutting off fancy graphic drivers. Graphics cards (video cards) use as much or more power today as hard disks - Thanks Andrew Update 7/7/07: Bonus Tip #1 to give caution dell 312-0305 battery about turning off autosave, tip #8 to change information about discharging batteries - thanks to all who pointed it out. Added Bonus tip #2, Tip #1 to add in clause in regards to Mac OSX, Tip #1 about the spinning of hard drives - thanks to all who pointed it out
Posted at 04:00 am by vastbattery
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First Review: HP¡¯s Budget-Friendly, Stylish ProBook
First post by: www.itsbattery.comToday, HP unveiled a new line of notebooks for small dell Inspiron 500m battery business users, starting at a recession-friendly $529. The ProBook has a stylish look (when¡¯s the last time you saw a red business notebook?), comes in 15- and 17-inch screen sizes, and boasts many of the security features offered in the premium EliteBook series (oddly, a fingerprint reader isn¡¯t one of them). How good is the performance and design? Check out our dell Inspiron 510m battery full review of the ProBook 4510s, which offers a 15.6-inch display, full size keyboard and numberpad, a 2.1-GHZ Core 2 Duo processor, 2GB of RAM, 250GB hard drive, and DVD burner for $699. Read on for more details. 15.6-inch The 4510s (Intel) and the 4515s (AMD, pictured at right) have 15.6-inch, LED-backlit, 16:9 displays, and are available with a Blu-ray-ROM dell Latitude D500 battery drive. However, the 15.6-inch models do not have a Bluetooth option and instead are available with mobile broadband. They are available with either integrated Intel graphics or discrete ATI graphics. The 15.6-inch models, like the 17-inch ones, have a full number pad on the keyboard. These will be available in Merlot and black. 17-inch The 17-inch version, the 4710s, is only available with Intel processors and discrete ATI Mobility Radeon HD 4330 graphics with 512MB dedicated dell Inspiron 600m battery memory. It has a full number pad, as noted above, HDMI output, and a Bluetooth option. It is only available in black. Availability Availability for these dell Latitude D505 battery notebooks will vary by region. HP has said, however, that the Merlot color option will become available in June.
Posted at 03:57 am by vastbattery
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Jul 4, 2009
5 Steps to Take When Your laptops Drops Into Water
First post by: www.itsbattery.comAccidents happen. If you¡¯re ever in a situation where your dell Latitude CPi battery is giving you problems because you got caught in the rain, or dropped it in the sink or toilet, here are 5 steps you can try:
Turn the device off and do not charge it - You want to keep the dell Inspiron 8200 battery non-operational while it dries out.
Drip dry and shake off as much water as possible
Dismantle whatever you can - If you are able to remove the battery and cover, do so. The more you expose the better it will dry.
Cover your dell Inspiron 8000 battery in a bowl of rice - Rice will help absorb moisture (at least it did for this Washington Post writer) like how it does in salt shakers.
Draw it away with a vacuum cleaner held over the affected areas for up to 20 minutes in each accessible area, having already removed the majority of liquids and moisture manually and dried all visible moisture by hand, so that none enters the vacuum cleaner. This method is preferable to leaving it to dry naturally as it halts any oxidation from occurring deep inside, such as can result in functional issues later on. This is the fastest way (less than thirty minutes after your phone drowns, it can be completely dry and working, especially if you are able to also partly or fully disassemble it) to quickly get all the internal moisture out of the dell Inspiron 4000 battery effectively and stop the internals from ¡®rotting¡¯ away. Remember that the goal is to suck all the moisture and humidity out of the phone not to blow it even further in and create even more evil humidity deep inside All in all, the idea here is to get it as dry as as possible - in as quick a time as possible. You¡¯d be surprised how many phones spring back to life once they are dried out. Speaking from experience, I once completely submerged my trusty old Nokia 3315 several times during a camping trip (I forgot it was in my pocket). I just dried it out, and it was just as good as new :) Note: Fans and hair dryers are not a good ideas as they tend to force moisture further into the small components deep inside the dell Inspiron 8100 battery eventually causing corrosion.
Posted at 05:29 am by vastbattery
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House Prices Finally Approaching Fair Value
First post by: www.itsbattery.comAs goes housing, so goes the rest of the economy. So where do things stand? After two years of precipitous declines that have taken prices down almost 30% from the peak, house prices are finally approaching fair value (which is perhaps 10% below today's level). That doesn't mean that house prices dell Inspiron 9400 battery will only fall another 10%, however. On the contrary, given the tendency for prices to overshoot, it would be startling if house prices stopped at fair value. More likely, they'll drop at least 10% below fair value before they finally trough. Although the rate of decline is likely to ease over the coming months and years, therefore, prices will likely keep falling through at least 2011. And there's at least 20% downside left. First, the big picture. Here is how house prices have behaved over the past 120 years, adjusted for inflation, courtesy of professor Robert Shiller. The house price line is on top. Prices are indexed against the 1890 price (left scale), and the chart is updated through the end of Q4. Here's the same chart superimposed on the economy by the New York Times. A Barry Ritholtz reader has updated dell laptop battery it to reflect the projected decline. Importantly, this version is a couple of quarters out of date. The latest value (end of Q4 2008), as calculated by Professor Shiller, is 137%, not the 155% shown in the chart. Prices have kept dropping since December, moreover, so the actual current value is probably closer to 130%. Given the modest long-term upward slope of this chart, fair value is probably somewhere in the 110%-120% range (again, indexed against 1890, adjusted for inflation). So this suggest we're still about 10% above fair value. However, note what happened to prices dell 310-6321 battery from 1910 to 1940. And now for some more recent data. The Case Shiller index for January 2009 showed house prices still falling 19% year over year. The rate of decline is finally peaking, which is good news. But it is hard to see how it will turn on a dime. Thanks to a near-30% drop from the top, house prices have now fallen back to 2003 levels. But they are still well above the average trend-line for the last 20 years (100% in this chart). And they are even farther above the pre-bubble trend line of the mid-1990s, which excludes the bubble of 2001-2007. Housing P/E finally returning to a more normal range "Housing P/E" measures graph house prices dell 310-6322 battery against rents and incomes. These are the closest thing we have to a price-earnings ratio for housing. Both measures show that prices are still high but are finally closing in on average levels. After a bubble like this, we would expect prices to significantly overshoot. But the absolute values are finally beginning to look encouraging. Bear in mind that, as with corporate earnings, rent and incomes are cyclical: As the economy deteriorates, rental rates will drop (as they are now). The same goes for incomes. All else being equal, this will make house prices look more expensive than on these charts. Price to rent (source Northern Trust) is closing in on fair value. Note that the date lines in the chart below are one standard deviation ABOVE fair value dell D5318 battery for the periods in question. The mean for 1987-2008, which includes the bubble, is 110%, which is about where we are now. The mean excluding the bubble, however, is another 10%+ below today's level. Price To Income (source: Calculated Risk) Closing In On Fair Value. The trough value for the previous housing decline was 10%-20% below today's level. Housing Affordability Index at record high...but not particularly meaningful The National Association of REALTORS and other dell G5260 battery housing promoters now point to the "Housing Affordability Index" as a measure to suggest that houses are already undervalued. Thanks to low interest rates, this theory goes, houses are more affordable--so prices will soon start rising again. The NAR's latest "housing affordability" calculations are below. But before you get excited, recall the NAR's track record (In 2007, the NAR said laptop batteries house prices would keep right on rising despite the levels in the charts above because houses are always a great investment and that house prices never go down). Also recall two things: First, the NAR's housing "affordability" index does not take into account the tighter lending standards that most banks have implemented in the past two years (making it harder for would-be buyers to get loans). Second, just because you can theoretically "afford" a house based on your income doesn't mean that you can go out and buy one. Imagine, for example, all the homeowners who would love to buy a house that's much cheaper than the one they have but can't because they can't sell their own house. Inventories are still too high and will continue to put pressure on prices. Contrary to what your real-estate agent told you three years ago, house prices are subject to the law of supply and dell G5266 battery demand. Thanks to our construction frenzy of two years ago, today's tighter credit standards, and our ongoing refusal to let in more immigrants, there's still a lot more supply of houses than demand for them. This situation will continue to put pressure on house prices until inventories approach normal levels. As these charts from Calculated Risk show, absolute inventories of new and existing houses for sale have declined in recent months. This is good news. The drop in new houses in particular is back to the trend level (but not below it). The reduced sales velocity means that the number of months it will take to work through the googel search existing house inventory is still well above normal. For existing houses, for example, we now have 10 months of inventory. Thanks to the precipitous declines of the past two years, house prices are finally approaching fair value. But they likely still have another 20% or so to fall (nationally), and they will likely continue to fall for at least two more years.
Posted at 05:25 am by vastbattery
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Owen Van Natta To Get MySpace CEO Gig
First post by: www.itsbattery.comMySpace CEO Chris DeWolfe and News Corporation¡¯s Chief Digital Officer Jonathan Miller, announced today that, by mutual agreement, Mr. DeWolfe will not be renewing his dell laptop battery contract and will be stepping down in the near future. Mr. DeWolfe will continue to serve on the board of MySpace China and will be a strategic advisor to the Company. Additionally, Mr. Miller announced that he was in dell Inspiron 6000 battery, dell Inspiron 9300 battery discussions with Tom Anderson, MySpace¡¯s president, about Mr. Anderson assuming a new role in the organization. ¡°Chris and Tom are true pioneers and we greatly value the tremendous job they¡¯ve done in growing MySpace into what it is today,¡± said Mr. Miller. ¡°Thanks largely to their vision, MySpace has become a vibrant creative community with 130 million passionate followers worldwide. It is an enormously successful property and we look forward to building on its achievements with a new management structure we¡¯ll announce in the near future.¡± ¡°In a little under six years we¡¯ve grown MySpace from a small operation with seven google search people to a very profitable business with over 1,600 employees,¡± said Mr. DeWolfe. ¡°It¡¯s been one of the best experiences of my life and we¡¯re proud of, and grateful to, the team of talented people who helped us along the way. We thank them, as well as the MySpace community for making our vision a reality.¡± ¡°From the very beginning, our driving passion has been simple - to create and foster a platform where people across the globe can not only meet and interact, but share music, videos, thoughts and ideas,¡± said Mr. Anderson. I look forward to working with Jon. I love this laptop batteries business, and look forward to its next chapter.¡±
Posted at 05:19 am by vastbattery
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Jun 28, 2009
If after a sufficient number of suitable time?
First post by: www.itsbattery.comHow to correctly to the cell phone lithium IBM 08K8193 Battery problems has been a good deal of readers called or wrote to a friend asked how correctly to the cell phone lithium battery, it seems this is a problem we all more concerned about the issue, I would like to focus on will answer this question: to buy a new cell phone lithium IBM 08K8192 Battery charging three times before How long will it take? A lot of friends that the charge should be 12 to 14 hours in order to activate dormant cells in many businesses in the same is true when consumers purchase said. In fact, this issue does not have a conclusion, while I personally think that there is no scientific basis in fact three times before and after the charge is the same charge, there are 3 to 4 hours is sufficient. First, we all know that when over-charging lithium batteries, over-charge or discharge, excessive discharge current when the battery life and have a great capacity for damage, and may even cause an explosion or deformation of the battery, so it is in the internal lithium battery Have set up electronic circuitry to protect the batteries. When the IBM 92P1101 Battery, IBM 92P1089 Battery over-charging, over-discharge current is too large, will be cut off connections with the outside. Like some friends, as reflected in: cell phone charger in the boot, the phone has come in automatic shutdown will cause problems. In other words, the initial battery charging, low voltage, and when a call came in, the phone to ring, it is necessary to maintain a certain degree of power. In the low-voltage, battery current will increase, too much current caused by the battery protection circuit moves to cut off the battery connections with the outside, resulting in cell phones turned off automatically. Second, to enhance the efficiency of the rechargeable, lithium battery to first-current electricity to the current charge of 90%, battery voltage of 4.2V, it almost takes about 2 hours; and then to a small voltage current charge until after the inspiron battery is fully charged Internal circuit protection movement, which takes about half an hour, taking into account the battery, the charger Products of individual differences, rechargeable lithium battery with 3 to 4 hours is appropriate. For example, I tested the battery charging process, Siemens 6618: 0.5 hour rechargeable battery power consumption to 50%, shows that IBM 92P1087 Battery charge 1 hour, the battery up to 80%, indicating ¡°8667 Battery¡±; charge 2 hours, the battery 100%, indicating ¡°A667 Battery¡±. Taking into account the margin of error showed that power mobile phones and other factors that may charge additional 1.5 hours. There is one more point it should be noted that lithium batteries do not have to be punished by placing the long-term hibernation state, the normal need for the use of pre-activated. After a general 3 to 5 charge, discharge cycles can be activated. According to the first two reasons, we can see that the dormancy of lithium batteries expect for a long time to activate the charge is meaningless. Because the battery is full (after about 2 to 4 hours), lithium IBM 08K8194 Battery protection circuit has been on the move, to cut off the external power supply. Due to the protection of the circuit, rechargeable lithium power for a long time although no harm, but to protect the circuit will start the consumption of energy batteries, circuit protection in case the loss of role, ranging from cell damage, while heavy damage to the cell phone, and then the consequences are afraid to re-envisaged . Therefore, taking into account the mobile phone, lithium 1691P charger and individual differences, charging three times before and after the charge are the same, only 3 to 4 hours has been a good deal of readers called or wrote to a friend asked how to correctly The cell phone lithium battery, it seems this is a problem we all are more concerned, I would like to focus on will answer this question: to buy a new cell phone lithium battery charging three times before How long will it take? A lot of friends that the charge should be 12 to 14 hours in order to activate dormant cells in many businesses in the same is true when consumers purchase said. In fact, this issue does not have a conclusion, while I personally think that there is no scientific basis in fact three times before and after the charge is the same charge, there are 3 to 4 hours is sufficient. First, we all know that when over-charging lithium IBM 08K8196 Battery, over-charge or discharge, excessive discharge current when the battery life and have a great capacity for damage, and may even cause an explosion or deformation of the battery, so it is in the internal lithium battery Have set up electronic circuitry to protect the batteries. When the battery over-charging, over-discharge current is too large, will be cut off connections with the outside. Like some friends, as reflected in: cell phone charger in the boot, the phone has come in automatic shutdown will cause problems. In other words, the initial battery charging, low voltage, and when a call came in, the phone to ring, it is necessary to maintain a certain degree of power. In the low-voltage, 3149C current will increase, too much current caused by the IBM 92P1102 Battery protection circuit moves to cut off the battery connections with the outside, resulting in cell phones turned off automatically. Second, to enhance the efficiency of the rechargeable, lithium battery to first-current electricity to the current charge of 90%, battery voltage of 4.2V, it almost takes about 2 hours; and then to a small voltage current charge until after the battery is fully charged Internal circuit protection movement, which takes about half an hour, taking into account the battery, the charger Products of individual differences, rechargeable lithium battery with 3 to 4 hours is appropriate. Taking into account the margin of error showed that power mobile phones and other factors, when the green light shows when the charger can charge additional 1.5 hours. There is one more point it should be noted that lithium batteries do not have to be punished by placing the long-term hibernation state, the normal need for the use of pre-activated. After a general 3 to 5 charge, discharge cycles can be activated. According to the first two reasons, we can see that the dormancy of lithium batteries expect for a long time to activate the charge is meaningless. Because the IBM 92P1077 Battery is full (after about 2 to 4 hours), lithium battery protection circuit has been on the move, to cut off the external power supply. Due to the protection of the circuit, rechargeable lithium power for a long time although no harm, but to protect the circuit will start the consumption of energy batteries, circuit protection in case the loss of role, ranging from cell damage, while heavy damage to the cell phone, and then the consequences are afraid to re-envisaged . Therefore, taking into account the mobile phone, lithium 5081P charger and individual differences, charging three times before and after the charge are the same, only 3 to 4 hours.
Posted at 08:31 am by vastbattery
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China will become the global automotive electronics products in key markets MCU
First post by: www.itsbattery.comProsperity in the Chinese automotive market driven, in 2007 China's automotive electronics demand, the rapid growth, far exceeding other areas of semiconductor growth. Among them, car information systems, such as the demand for high-end MCU's main application of automotive electronics market has IBM 92P1060 Battery become the engine of growth. In addition, as consumers of automotive safety, comfort, driving performance, such as the continuous improvement of demand, manufacturers of automotive electronics products to improve the performance and functionality increase, easy to operate, and other aspects of the new requirements, ESP, TPMS, Ranging radar and a series of security battery technology is widely used, which require a large extent, the upper reaches of MCU products substantially increase the handling capacity, in order to adapt to the development of high-end cars to keep this trend, automotive mainstream from the speedy completion of MCU 8 to 16 upgrades, and thus start IBM 08K8214 Battery from 16 to 32 products migration, functionality and performance in such areas to better meet consumer demand. It is based on the future of automotive electronics market optimism, the MCU major manufacturers have increased in the areas of automotive electronics products inputs and marketing efforts, in the automotive electronics market MCU occupy the dominant position in the main by Freescale, Infineon, STMicroelectronics as the representative of the United States and Europe of the manufacturers, to Renesas as the representative of the manufacturers in this field more focused solutions in the field of entertainment information. In 2008, and the next few years, China's auto electronics market will be in the domestic automobile industry development and the promotion of the product upgrading and maintaining rapid development trend, the automotive electronics market regulation Die will continue to expand and is expected to 2012, China's auto electronics market will be over 320 billion yuan. However, due to vehicle production gradually become stable and growing base of the size of the market, automotive electronics growth will gradually slow down. China MCU IBM 08K8195 Battery market from the application of the structure, the next five years, automotive electronics applications demand growth is most significant, with an average annual compound growth rate of 22.4 percent, to 2012 the application of the size of the market will reach 5.03 billion yuan. Huge automotive electronics market for automotive electronics manufacturers and semiconductor companies to provide an opportunity for vehicle manufacturers, automotive manufacturers and semiconductor companies will further the cooperation, with the field of competition among manufacturers will become more intense. Foreign automotive manufacturers in China is accelerating the pace and started to begin the process of localization, to seize Chinese market, while China's domestic manufacturers Although a late start, but with their own advantages and the flexibility semiconductor manufacturers to provide the solutions mature, faces enormous Development opportunities. Automotive electronics industry will become China's electronics industry one of the major growth point in China will also become a global automotive electronics products MCU most important market.
Posted at 08:29 am by vastbattery
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Dynamic safety of lithium-ion battery cathode materials and design influence
First post by: www.itsbattery.comWith IBM Laptop Battery technology continues to update and development of its light, high-capacity, long-life advantages gradually consumers of all ages. By phone market has expanded to cameras, model aircraft, toys, and other areas. In recent years, IBM ThinkPad T41 Battery electric power Hardware Tools tools, backup power Regulators regulators, electric bicycles, light electric vehicles and other large equipment on the Application of a growing concern, and the equipment requirements of a large-capacity battery , High-power conditions. IBM ThinkPad T42 Series Battery can meet the high-security, high power, long life's basic requirements, many experts and scholars on the important subject. Power lithium-ion batteries generally refers to security issues because of improper use of battery power, functional failure, accidents and abuse battery Guzhang leakage, temperature and pressure beyond the use of standard, or even the explosion and fire incidents, resulting in the user lives and property are threatened . One explosion and fire is the most serious safety incidents. Lithium-ion batteries abuse led to the fire explosion of internal reasons are very complicated, but most of them are caused by high temperature and pressure, and the causes of the two most can be summed up in the lithium-ion battery thermal runaway reaction, which is fever. These reactions are generally fever: the cell membrane electrode SEI decomposition, embedded lithium and the reaction solvent, the cathode material decomposition, and so on. Cathode material is the key advantage of the LiMn2O4 Lithium-ion battery power in the security issue, the electrode IBM ThinkPad T43 Battery in the cathode material is the key, but also trigger lithium-ion battery the main reason for potential safety problems. Seeking high energy density, high security, environmental protection, and the cheap power battery electrode material is the key to development. The current widespread use of the cathode material are LiCoO2, manganese lithium-acid, nickel and cobalt and manganese Lithium iron phosphate lithium. On the data obtained at home and abroad, LiCoO2 used to power batteries of greater security risks, not generally as the motive power battery cathode materials; LiMn2O4 the use of more common; nickel and cobalt LiMn2O4 domestic use less, China Taiwan and Japan that some manufacturers use. Because manganese is rich in resources (in particular China, the world's reserves of the third), low-cost, environmentally friendly, and LiMn2O4 a high-voltage discharge, the technology is mature, security, and other layered structure of the cathode material can not be compared High-rate charge and discharge capacity of the advantages and thus present in the promotion of lithium-powered batteries, LiMn2O4 has great advantages. Although relatively lower than capacity, but the larger battery is not in itself constitute a significant weakness. LiMn2O4 cathode materials for the lithium-ion batteries assembly has a good safety and thermal stability. However, there are also LiMn2O4 capacity fading fast (especially in high-temperature conditions), the short life cycle of the shortcomings that impedes the process of actually used. Nickel and cobalt LiMn2O4 material than are the advantages of high capacity, superior performance cycle. Made of lithium-ion battery has a very high energy density, suitable for severe restrictions on weight and volume but high-energy requirements of the field. As the use of the cobalt, nickel and other metals, nickel and cobalt prices LiMn2O4 after LiCoO2. However, nickel and cobalt manganese lithium-acid battery applications in force yet to be assessed on the domestic application of the material is usually the way through doping modified to improve its safety performance, but did not see the size of the application. Lithium iron phosphate rich source of raw materials, low prices, higher than the capacity and excellent high-temperature cycle performance and high safety performance advantages, is very dynamic development prospects of battery cathode materials. Lithium iron phosphate as a new type of battery cathode materials for use in recent years have warming trend. Since the patent restrictions, Europe and North America to mass production of lithium iron phosphate battery of small manufacturers, IBM ThinkPad R50 Battery basically been monopolized by a few manufacturers. Although many domestic manufacturers of lithium-ion iron phosphate lithium battery research and development into production, but due to technical and system-level differences in product quality varied. Additives, electrolyte safety Lithium-ion battery power also affected the design of the IBM ThinkPad R51 Series Battery of security. Only manufacturers are in the negative ratio, bonding agent types, divide the assembly, welding and a type of ear, package, through careful calculation and control, to make a film within a reasonable current distribution, polarization small battery, cooling Good and efficient security. For safety considerations, the driving force in the design of the battery would normally be taken into account when the abnormal situation occurs when the battery system to environmental heat transfer rate system can produce heat than the speed, because it determines the heat out of control in response to the probability . To further enhance the safety of battery power, many manufacturers will normally be the electrolyte in the battery to join the functional additives. These additives have been sufficient defense, anti-Expansion to improve the low temperature and the role of fire-retardant. It is worth mentioning that the flame retardant electrolyte add impetus to enhance the safety of the battery an important direction. Join the flame retardant is designed to increase the oxygen for combustion electrolyte. As we all know, when the oxygen index of more than 27 when a flame retardant material, the development of the flame retardants are close to or reach this target. The power battery electrolyte, the individual indexes for the development of the additive is not difficult, the difficulty of the electrolyte is to ensure that security at the same time we must take into account other conventional performance. Electrolyte balance for the function, multi-functional compound additives on the direction of R & D is. Essential to the protection board In order to strengthen the driving force for the safety of lithium-ion battery, battery protection board is bound with the equipment. In most cases, lithium protection board should have control of the use of lithium-ion battery conditions of work functions, these conditions include voltage, current and temperature. As the use of lithium-ion batteries are unique, making lithium-ion battery power to protect and support the use of panels together to ensure the safety and reliability of the system as a whole. More and more strings of batteries in matching assembly, in the process of long-term use is inevitable that there are individual differences, the protection board (or battery management system) to be responsible for the entire group of battery voltage, current and temperature, and even the IBM FRU 08K8193 Battery capacity to monitor, we must Achieve the accuracy and prompt action can play a due role. At the same time, battery performance of individual differences in the same charge and discharge current, sections of the battery voltage and available capacity will be different, with the increase in the number of cycle, the battery performance differences will become increasingly significant, which will Greatly reduced performance of the entire battery life significantly shortened. For battery performance to reach or approach the level of single cells, each cell must be balanced so that the batteries within the single charge and discharge performance deteriorated due to reduce to the minimum extent. Most manufacturers have adopted a balanced protection of rechargeable lithium-ion batteries for maintenance. Therefore, the driving force for the safety of lithium-ion battery of factors, the electrode material is essential, to ensure that meet the current industry standard materials testing system only LiMn2O4 and lithium iron phosphate. Manufacturers generally use the safety and compatibility of good performance additives protect the electrolyte lithium-ion battery power to better use. In addition, lithium-ion protection board provides for the protection of the functions of lithium batteries, can maximize the protection of safe and reliable power battery use. Charge balance function of practical guarantee for the lithium-ion battery to power high-securitylong-life work. From the future trend, power lithium-ion batteries, boards and equipment for the protection of the three joint development is a scientific development.
Posted at 08:26 am by vastbattery
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Jun 24, 2009
Renewable energy: how to "vases energy" to the dominant energy
First post by: www.itsbattery.comAt present, the international oil prices continued to rise, energy supply growing tensions, the deteriorating environmental conditions, many countries have begun to attach Toshiba Satellite A10 Series Battery importance to research and development of renewable energy. In China, with the rapid socio-economic development, energy and the environment for sustainable development has become increasingly serious constraint. In light of these problems, the reporters here at Toshiba Satellite A100 Battery the General Assembly on an interview with academicians of the Chinese Academy of Engineering, Energy and Mining Engineering academician of Huang Lai. Academician Li Huang, to energy conservation, demand total control, development of clean energy technologies, accelerate the development and utilization of renewable energy, optimizing energy structure, to fill the gap of conventional energy, environmental protection and reduction of greenhouse gas emissions an important way to the achievement of China's economic and social The only way to sustainable development. The development of the road map Although coal and oil and gas in the future is still quite a long time, major energy Toshiba Satellite A70 Battery, but China's oil and gas "reserve-production ratio" has reached the Toshiba Satellite A75 Battery warning line, coal, "reserve-production ratio" is also far lower than the level in most countries. In response, Huang Li academicians, on China's renewable energy development need to establish a more positive goals, he will this goal can be summed up as the road map renewable energy development, renewable energy will gradually be added by upgrading to energy alternative sources of energy, The mainstream of energy and one of the leading energy. Huang Li-academician of the road map to the specific details were described: the recent (around 2010), non-hydro renewable energy strategic positioning is to add energy, can provide 060 million tons of Toshiba Tecra 8000 Battery standard coal equivalent of energy demand, accounting for the proportion of the total energy demand 2%: the medium-term (before and after 2020), non-hydro renewable energy is the strategic positioning of alternative energy sources, can provide 180 million -3.3 million tons of standard coal equivalent, the country's total energy demand of 5% -10%; long-term ( Before and after 2030), non-hydroelectric renewable energy strategic Toshiba Tecra 8100 Battery positioning is one of the mainstream of energy, to meet the 400 million -8 100 million tons of standard coal equivalent of energy demand, the country's total energy demand of around 10% -19%; long-term ( Before and after 2050), renewable energy is of strategic positioning one of the leading energy, to meet the 880 million -17.1 million tons of standard coal equivalent of energy demand, the country's total energy demand of 17% -34%. Weak "vases energy" Although the Government has to recognize that forward-looking development of renewable energy resources and strategic significance, and January 1, 2006 promulgation and implementation of the "People's Republic of China Renewable Energy Law," a number of other laws and regulations have also introduced, but some industries and regions Unclear in resources, industrial and other issues remained to be resolved weak circumstances, a quick success and disorderly development of symptoms, the need for scientific guidance. In addition, as the future direction of energy development, renewable energy in the early stage of development there are still some inadequacies, through economic and technological development so that it gradually rationalized. To solar energy as an example, Huang said Academician Li, solar cells in the production process will emit silicon tetrachloride, environmental pollution and, using solar energy is much higher than the cost of coal-fired electricity; In addition, from solar energy to supply patterns That the lack of stability. Again, bio-energy in the production process, the diversified technology will cause the diversification of products, some technologies such as methane gas produced only a low utilization rate of resources products, comprehensive utilization efficiency is not high compared with coal, bio-energy production Scattered distribution of raw materials, mining and use of high cost of transport. The development and use of water involved immigration, environmental protection and watershed issues such as distribution of economic benefits. "Every may Toshiba Tecra 9000 Battery foster a lack of new projects," Huang Li said. Development should have focused on Academician Li Huang, a family of renewable energy in hydro, wind, solar, biomass and other claims, and should be a clear development of their strategic focus. For example, wind power should be "land-based and network-based, pay attention to the development of distributed, speed up industrial building" solar energy should be "mandatory to promote the construction and use of the thermal technology, solar photovoltaic industry chain on the balanced development "Hydropower should be in protecting the environment and ecology on the basis of active and orderly development. For the current concern to the international community of higher bio-energy development model, Huang Li academicians believe that we should "not with the people for grain, and grain is not in dispute" and "not an agricultural land and water, not fight with livestock feed to ensure that food Security "under the premise of multi-start, with the passage of time, non-grain liquid fuels and alternative oil-based products will become of strategic focus. Specifically, the recent can use more mature type of non-food starch and sweet sorghum production of ethanol, a large-scale production, promote long-term study can be considered second generation of bio-liquid fuel technology, agriculture, forestry, waste utilization in the production of cellulose Bioethanol and biodiesel, the scale of alternative fuel oil to protect the security of energy supplies to contribute. "Fossil energy is the sun yesterday to give our mothers, renewable energy is the sun today to give our mother. A new energy revolution will occur, we can better use of renewable energy, fossil energy left to future generations." Huang Lai Academician said.
Posted at 05:07 am by vastbattery
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The definition of a balanced battery
First post by: www.itsbattery.comOperates at 6 V or more portable devices using the battery pack power supply series, in which case the total voltage battery pack for the series and the battery voltage. The portable computer from the battery pack is usually three or four series from the battery, a nominal voltage of 10.8 V or 14.4 V. In most such applications, a single series battery pack unable to provide the necessary energy equipment. Currently the largest battery (such as Toshiba Tecra 9100 Battery) are available for 2000 mAh (mA hours) energy, and the computer needs 50-60 Whr (5000-6000mAh) energy, it is necessary to the series of three parallel each battery cell. The battery is balanced on the battery pack in the series of different cell (or battery) the difference current. Series battery pack in each of the current battery is usually the same, it is necessary to the battery pack additional components and circuitry to achieve a balanced battery. Only when the battery pack in a series of batteries, battery series equal to or greater than 3 when it will consider battery balance. When the Toshiba Satellite 1900 Battery pack in all the cells are to meet the following two conditions, we achieved a balanced battery: 1. If the battery capacity of all the same, then when their relative status of the same charge when it achieved a balanced battery. SOC to the current capacity and is usually rated capacity expressed as a percentage, therefore, open circuit voltage (OCV) can be used as a measure of SOC. If a battery is not balanced package of all the difference rechargeable battery can be reached full capacity (balanced), they will be able to carry out the normal charge and discharge without any additional adjustments, such adjustments is usually a one-off. Users in the use of the new battery, usually takes a long time called for a rechargeable battery, this process actually include a full release - charging. The process to minimize the load, and battery charging the longest time, reduce the balance of the Toshiba Satellite A60-662 Battery circuit requirements. 2. If the battery capacity of different, when the SOC is also the view that they are balanced. However, SOC is only a relative value, the absolute value of each battery capacity is different. In order to make a different capacity battery SOC the same, each of the series when the Toshiba Satellite A65 Series Battery charge and discharge must use difference current. Normal charging and discharging of time than the initial charge and discharge more quickly, and the need for more current. When the battery pack in the battery is not balanced, it will reduce the available capacity, the battery pack in the series minimum capacity of the battery will determine the total capacity of the battery pack. In the battery pack is not balanced, one or a few batteries will be needed in other rechargeable Toshiba Satellite 2100 Battery, has been reached maximum capacity. The discharge, is not fully charged battery will be first than any other battery-end, so that the battery pack voltage due to a lack of early cessation of electricity supply. Usually, the battery capacity of the difference between less than 3 percent. If the series of lithium battery pack of a battery of sub-standard, or placed in the package before too long, in a voltage difference, after up to 150 mV, so that the total capacity of the battery pack dropped 13-18 percent.
Posted at 05:05 am by vastbattery
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