显示标签为“Dell laptop battery”的博文。显示所有博文
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2011年6月22日星期三

Relpacement Dell laptop battery Tips by wholesaleeshop

According to Dell, the battery in your notebook should last somewhere between 18 to 24 months before you see a drop in its performance. After that, you’ll likely notice that the battery’s charge won’t last as long as before. When this happens, you should consider switching the old battery out for a new one. The process is simple and should only take you a few minutes to complete. Read on to learn how to change a Dell laptop battery.Dell latitude d600 battery

Dell latitude d600 battery

Instructions
* 1 Make sure your replacement Dell studio 1535 battery is ready to go by taking it out of its packaging and placing it somewhere nearby.
* 2 Save any open files on which you’re working. Since turning the system off isn’t required when changing the battery, this is more of a precaution than a necessity.
* 3 Plug your Inspiron AC adapter into a nearby wall socket. Then, connect the end of the adapter cable to your notebook’s power socket.
* 4 Turn your notebook over and find the dell xps m1530 battery latch. Slide the latch into the release position and pull out the old battery.
* 5 Install the new Dell battery by simply popping it into place. The alignment of the studio 1535 battery should be easy to figure out, since there’s only one side of it that connects to the receptor pins in your notebook’s battery bay.
* 6 Make sure the battery latch pops back into the locked position. If it’s jammed in the unlocked position, gently wiggle the battery back and forth to pop it back.
* 7 Keep your notebook plugged in to the wall socket in order to charge the new laptop battery. You can check the status of its charge by clicking on the system tray icon shaped like a battery.
Tips & Warnings
* If you don’t have access to laptop power adapter, stand your notebook by or shut it down before removing the old battery.
* Don’t remove the old battery when it’s still in use.
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Laptop batteries are crucial when working on the road. To get maximum performance from your laptop battery, fully optimize the laptop's power management features prior to use. However, there is a trade off when setting your laptop power management. You will achieve better power conservation in exchange for lesser computing performance. The power management system conserves the laptop battery power by setting the processor to run at a slower speed, dimming the laptop screen, slowing down the hard drive when it's not in use and causing the machine to go into sleep or suspend mode when it is inactive. Your laptop user's guide will provide information relating to specific power management features.


CloudTags: Dell laptop battery, Relpacement, Tips, wholesaleeshop, Dell studio 1737 battery

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2011年5月18日星期三

Cylindrical cell batteries are the most common types of batteries

Cylindrical cell batteries are the most common types of batteries used in household devices. These batteries typically come in standard alkaline form, but some also come as nickel-based rechargeable batteries. The size of the battery, labeled by its letter class, determines how much power it stores, which is measured in amp-hours.Hp 315338-001 battery
AA batteries are among the most common types of cells used. A AA battery measures 2 inches in length, including its button-like positive terminal, and just over 0.5 inches in diameter. AA batteries usually have a voltage of 1.5 volts, though nickel-cadmium and nickel-hydride usually have a 1.25 voltage and nickel-zinc has 1.65. Alkaline batteries usually have a maximum charge of 2900 amp-hours; lithium and nickel hydride batteries
(Hp pavilion dv6 battery,Dell latitude d830 battery) can have up to 3000 amp-hours, while nickel-cadmium and zinc-based batteries usually have 1500 or less. AA batteries are often use in portable electronic devices like hand-held CD players and video games consoles.
AAA batteries are very similar to AA cells, but more compact. These batteries are 1.75 inches long and 0.41 inches in diameter. Like AA batteries, they carry a voltage of 1.5 volts. AAA batteries usually have a maximum charge of 1200 amp-hours; zinc and cadmium-based batteries can drop to around 500 amp-hours. These batteries are for devices that don't require as much power as those that use AA cells. They are found in the same type of devices as AA cells, such as portable electronics and remote controls, but they are more efficient in power consumption.
C cell batteries are noticeably larger than AA and AAA sizes. They are two inches long and just over 1 inch in diameter. These batteries' voltage may vary from the standard 1.5 voltage depending on their chemical compound. The alkaline form of these batteries normally store 8,000 amp hours; nickel hydride batteries usually have 6,000 while zinc-carbon batteries have less than 4,000. C batteries are often used in larger children's toys and musical instruments.

Did you know that detaching your main laptop batteries from your laptop would increase your laptop's battery life up to 75%? Our experience and testing have shown that even when you are plugged in with your laptop ac adapter and your battery is fully charged, the laptop will still use the laptop battery resources in small increments. This will put unnecessary charge cycles to your battery. Since typical li-ion laptop batteries have 375 charge cycles, having a fully charged battery inserted will put unnecessary charge cycles. The downside to removing your laptop battery maybe a loss of power when the ac adapter is accidentally unplugged or when there is a power outage.


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2011年5月16日星期一

Why Advanced Lithium Ion Batteries Won’t Be Recycled

One of the most pervasive and enduring myths in the energy storage sector is that a robust recycling infrastructure for used lithium-ion batteries will be built before the wonder-batteries that are being manufactured today for the first generation of plug-in vehicles reach the end of their useful lives. In the worst case scenario, advocates suggest used lithium-ion batteries will be stockpiled until there are enough used batteries to justify the build-out of recycling infrastructure.New-York-City-1.jpg
The numbers tell a very different story.
For several years the single minded obsession of all lithium-ion battery developers has been reducing costs to a point where using batteries as a substitute for a fuel tank makes economic sense. Most of the progress has come from substituting cheap raw materials like iron, manganese and titanium for the more costly cobalt and nickel that were used in first generation lithium-ion batteries((Dell inspiron 9300 battery, Dell latitude d420 battery)). Unfortunately, when you slash the cost of the materials that go into a battery you also slash the value of the materials that can be recovered from that battery at the end of its useful life.
Using Material Data Safety Sheets from Powerizer and current LME Prices fromMetalPrices.com, I've calculated the value of the metals that can be recovered from recycling a ton of used batteries and summarized them in the following table.
Battery ChemistryMetal ValuePer Ton
Lithium cobalt oxide batteries$25,157
Lead acid batteries$1,500
Lithium iron phosphate batteries$400
Lithium manganese batteries$300
Given the extremely high metal value of used cobalt-based lithium batteries it seems strange that only one company in the world, Unicore of Belgium, has bothered to develop a recycling process. When you take the time to read and digest Umicore's process description, however, the reason becomes obvious. Recycling lithium-ion batteries is an incredibly complex and expensive undertaking that includes:
  • Collection and reception of batteries;
  • Burning of flammable electrolytes;
  • Neutralization of hazardous internal chemistry;
  • Smelting of metallic components;(Dell gk479 battery, Dell inspiron 1520 battery)
  • Refining & purification of recovered high value metals; and
  • Disposal of non-recoverable waste metals like lithium and aluminum.
The process is economic when a ton of batteries contains up to 600 pounds of recoverable cobalt that's worth $40 a pound. The instant you take the cobalt out of the equation, the process becomes hopelessly uneconomic. Products that cannot be economically recycled can only end up in one place, your friendly neighborhood landfill.
Dell vostro 1510 batteryDespite their extremely high metal value, cobalt-based lithium batteries(compaq dv2000 battery,Dell inspiron 6400 battery) are rarely recycled because process is so difficult and expensive.
In the final analysis, the recycling mythology is just another glaring example of unconscionable waste and pollution masquerading as conservation.
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2011年5月9日星期一

Battery Technology for Chasing batteries to storage

Batteries—in other words, electrochemical storage—have a range of useful applications on the grid, but their performance, cost-effectiveness and siting requirements must be refined, according to a recent paper by researchers at the Pacific Northwest National Laboratorybatteries in recycling bin
That refinement process is likely to require more utility-based demonstration projects, researchers said.
Battery applications such as power reliability, frequency regulation, renewable energy integration and energy management must be honed via further basic and applied research, particularly in utility demonstration projects, researchers said in a recent paper.
"While there has been increased interest and attempts to improve stationary storage, investment in the area is still limited in comparison with that of Li-ion batteries for vehicle applications," concluded Gary Yang, lead author of "Electrochemical Storage for Green Grid," and a lab fellow at PNNL. (The paper was published in Chemical Reviews in March. Subscription required.)
"Currently," Yang pointed out, "there are only a few government-funded programs worldwide with limited funding for developing electricity storage technologies for stationary applications."
Hurdles include lack of public and political awareness, current regulatory approaches Dell studio 1535 battery and government support, Yang suggested.
On the "bright side" (my phrase):
  • The Energy Independence and Security Act of 2007 authorized $50 million annually for a decade for basic research; $80 million annually for a decade for applied research and $100 million annually for demonstration projects.
  • The American Recovery and Reinvestment Act of 2009 funded 16 storage demonstration projects with $185 million in federal monies and $585 million in private sector investment.
  • China and various European nations are also investing and conducting stationary storage research and development.
Aside from cost and performance, advances are needed in chemistries, materials, cell/stack design and system engineering, Yang and his co-authors said.
Perhaps the most promising Hp 484170-001 battery,Hp dv6000 battery categories are redox flow, Na-beta alumina membrane, certain Li-ion chemistries and lead-carbon technologies, according to the paper.
Readers, one issue that arises here is that research and development (R&D) on battery technologies could mean greater choices for the myriad grid applications that will evolve over coming decades. Failure to do so could mean fewer choices. The work is expensive and, in my opinion, the cost-share between taxpayer and private sector is healthy.
This is a political issue, a budget issue and a technology issue that won't go away. Cynics may suggest that researchers naturally will propose more research. Private sector entities with an interest in moving battery technologies to market—and utilities that might benefit—clearly have an interest in overcoming hurdles. The public may eventually benefit, but broad support for utility-scale battery technology may be difficult to achieve, given the somewhat arcane nature of the pros and cons.


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2011年4月11日星期一

Dell begin using mushroom-based packaging for some of its shipments

Making packaging materials from mushrooms and common agricultural waste products such as cotton, rice, and wheat chaff is an initiative sponsored by the National Science Foundation, the US EPA, and the USDA, among others.
The sustainable materials replace styrofoam and polyethylene commonly used as cushioning, and they can be composted.
"We've tested the mushroom cushioning extensively in the lab to ensure it meets our same high standards to safely protect our products during shipment(Dell inspiron 600m battery,Dell inspiron 6400 battery)--and it passed like a champ," Dell said in a blog post.
Initial pilot shipments will be for Dell's PowerEdge R710 server in the Multipack packaging configuration. Four systems fit in one box, which dramatically reduce packaging material.
The mushroom cushioning is unique because it is grown and not manufactured in the traditional sense, Dell said.
"The process works like this. Waste product like cotton hulls are placed in a mold which is then inoculated with mushroom spawn. Our cushions take 5 - 10 days to grow as the spawn, which become the root structure--or by the scientific name, mycelium--of the mushroom. All the energy needed to form the cushion is supplied by the carbohydrates and sugars in the ag waste. There's no need for energy based on carbon or nuclear fuels."
Dell hopes the mushroom packaging will complement its bamboo packaging, providing a better option for heavier products like servers and desktops.
Bamboo, which the company began using in 2009, is better suited for notebooks and smartphones, Dell said. Currently the company is shipping approximately half of its Inspiron line of consumer laptops in bamboo.
Dell aims to eliminate about 20 million pounds of packaging material from its shipments by the end of 2012, while cutting desktop and laptop packaging by around 10%, increasing sustainable content in cushioning and corrugate packaging by 40%. Dell also wants 75 % of its packaging components to be curbside recyclable by 2012.
Thanks to leaked FCC schematics and specs, word is out that Dell(Dell inspiron 1520 batteries,Dell inspiron 1525 battery) is developing a new convertible tablet and notebook combo. The 15-inch device, code named the "Dell Panerai", may follow in the footsteps of the 10-inch Inspiron Duo convertible, though it's not clear whether the Panerai will feature the same flip design.
What we do know from the FCC filing is that the Panerai will have both a "laptop mode" and a "tablet mode" and that there's an Intel Centrino 6230 wireless chipset a/b/g/n
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2011年4月10日星期日

Having a battery fully charged and the laptop plugged in is not harmful

The modern lithium battery can be charged regardless of its current percentage, given that it has absolutely no negative effect in its performance.Dell vostro 1510
Many laptop users have this question and we will answer it right now:
The answer is: YES and NO, it depends on the situation.
Having a battery fully charged and the laptop plugged in is not harmful, because as soon as the charge level reaches 100% the battery stops receiving charging energy and this energy is bypassed directly to the power supply system of the laptop.
However there's a disadvantage in keeping the Dell d630 batteries in its socket when the laptop is plugged in, but only if it's currently suffering from excessive heating caused by the laptop hardware.
So:
- In a normal usage, if the laptop doesn't get too hot (CPU and Hard Disk around 40ºC to 50ºC) the battery should remain in the laptop socket;
- In an intensive usage which leads to a large amount of heat produced (i.e. Games, temperatures above 60ºC) the battery should be removed from the socket in order to prevent unwanted heating.
The heat, among the fact that it has 100% of charge, is the great enemy of the Dell inspiron 1520 battery and not the plug, as many might think so.

Battery discharges

Full battery discharges (until laptop power shutdown, 0%) should be avoided, because this stresses the battery a lot and can even damage it. It's recommended to perform partial discharges to capacity levels of 20~30% and frequent charges, instead of performing a full discharging followed by a full charging.
Laptop batteries contain a capacity gauge that allows us to know the exact amount of energy stored. However, due to the charging/discharging cycles, this sensor tends to be inaccurate overtime.
Some laptops include in their BIOS, tools to recalibrate this battery gauge, which is nothing more than a full discharge followed by a full charge.
So to calibrate the gauge, it should be performed, in every 30 discharge cycles, a full discharge non-stop , followed by a also, non-stop, full charge.
An inaccurate gauge can lead to the fact that the the battery capacity values are are wrong. The battery may report that it still has 10% of capacity when in fact it has a much lower value, and this causes the computer to shutdown unexpectedly.
Discharge (or charge) cycles consist of using all that Dell inspiron 1720 battery charge (100%) but not necessarily all at once.

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For example, you can use the laptop for some minutes in a day, using half its capacity e then fully charge it. If you did the same thing in the next day, it would be counted a discharge cycle and not two, so it may take several days until a full discharge cycle is completed.
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