Archive for March, 2010

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Discharging of Nokia mobile phone battery

March 15th, 2010

Nokia_N97_group_05

Nokia plans new routes loading of mobile phone laptop batteries. The Finnish mobile phone specialist has a patent application in February to define how we can make Self service batteries. This is to be realized by means of kinetic energy. This Nokia relies on a simple system: the kinetic energy to be generated through mobile phone stored in the modules, which are coupled to piezoelectric elements.

Through this mechanical movement of the electric voltage to be generated for charging the phone’s ThinkPad R40 Battery . Extent to which a battery can be charged with this method is open. Even the smallest movements are, however, shall have the desired effect.

When the technique can be used, is now open. The fins are also working on other ways to charge cell phone ThinkPad T40 Battery , but the results with, for example radio waves are being reported more überschaubar.Es

Your mobile phone must never run out of juice while you’re away. So says the Finnish Nokia, which filed a U.S. patent last week for a phone that loads by energy generation from the movement of the owner.

Nokia sees a cell phone, which supports the heavier components, such as the radio circuitry and IBM ThinkPad R50 Battery are on a stable framework. This framework can move on two types of rails, it can go up and down the other side to side.

Strip of piezoelectric crystals are located at the end of each rail and generate electricity when compressed by the frame. as the user moves, or moves otherwise the phone, the motion generated electricity. These ThinkPad T42 Battery charges a capacitor, which in turn trickle charge the battery keeps it topped up.

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How to maintain radio batteries?

March 12th, 2010

When charging a laptop battery is finally the green light illuminate the charger, as an indication that the battery is fully charged. The user concludes that the battery has reached its full potential and can be used with full confidence

The ‘green light’ lies

The ‘green light’ does not guarantee that the battery capacity is large enough, or that the ‘state of health (SoH)’ is good. "Ready" says only that the battery was full, we were keenly whatever capacity, which was filled.

The rechargeable Dell M1330 battery is a corrosive entity that the property of being able to save energy lose, gradually. The lack of periodic maintenance for batteries based on nickel accelerates the loss of capacity due to crystal formation, also known as memory effect. For lead batteries or lithium-based learn other aging-related deterioration. The capacity loss is noticeable after one year of use. Some batteries deteriorate faster than others.

Battery users are often unaware that the batteries of their fleet lasted barely a day, even with minimal energy output. Weak ThinkPad T40 Battery can be hidden easily, because demands on an ordinary day but little power they are. The situation changes when full power is required in an emergency. The collapse of portable communication is frequent, and those margins are often motivated by poor battery performance.

Weak batteries will be loaded faster and stay longer on ‘ready’ as the stronger. Bad Lenovo ThinkPad X60 Battery tend to show too good results and the inexperienced user thinks the battery has reached its target capacity. If necessary in an emergency situation, a quick charge may, however, batteries that are labeled ‘ready / willing’ to be unusable. At the same time, good batteries are still charged more because they can absorb more energy.

With the big time performance differences arise between the batteries if the batteries of the fleet are not regularly checked and maintained. Figure 2 shows 4 Dell G5266 Dell GW240 of different sizes and with different states of health. When watching the usable and unusable parts of the batteries, you can see that a larger battery can not necessarily save more energy. The affected batteries with memory effect B and D have less energy than the smaller battery A. The carrying of larger batteries or the use of chemistries with greater energy density improves the reliability of the system, if not weak batteries are left in the fleet.

A weak MacBook Pro 13 inch Battery can be compared with a crushed fuel tank of a vehicle. The filling of this tank is quickly terminated because fuel has very little space. As the green light on the charger is the fuel gauge ‘FULL’ Display if the tank is filled, for the driver and everything seems to be normal. Nevertheless, the distance that can be completed until the next refueling, be small.

Batteries contain no fuel gauge to check the remaining energy, and a regular battery maintenance is required. The gain of such a service is, you detect and remove poorly performing Apple MacBook Pro 17 inch Battery, improves reliability and extends the battery life of nickel-based batteries. Weak batteries that have the memory effect can often be regenerated with the help of a full maintenance with a battery analyzer that includes a regeneration program.

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How to replace Wireless Mini-Cards in your laptop

March 11th, 2010

How to replace Wireless Mini-Cards in your laptop

The laptop’s most advantage compare to PC is the movability. That means we can take our laptop to everywhere for work fun and so on. So we can not leave internet to get the infomation, but you can not get a Cable Internet anywhere. In that time we must use the laptop wireless Mini-Cards to connect to internet.

If you ordered a wireless card Mini with the computer, the card already installed. Your computer supports three types of cards Mini Wireless: Wireless Local Area Network (WLAN), Ultra-wideband (UWB)-map Mobile Broadband or Wireless Wide Area Network (WWAN). http://www.laptops-battery.co.uk

NOTE: To avoid damaging the system board, remove the laptop battery from the battery bay before starting work within the laptop. As the short circuit may damage your laptop hardware.

Usually replace the Wireless Mini-Cards will divided into 2 step : 1. Remove and replace Mini Card. 2. Removing and replace the Module Flash memory cache. We will tell you how to do them one by one.

Remove Mini Card :

  • Turn on your computer with Dell Latitude D830 Battery.
  • Loosen the eight screws in the back to captivity, and then remove the cover.
  • Disconnect the antenna cables from the Mini-card. (NOTE: The Mini-card may have two or three connectors, depending on the type of card you ordered.)
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  • Release the Mini-card by removing the securing screw.
  • Lift the card out of its system board connector.
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Replacing Mini-Card

NOTE: The connectors are coded to ensure proper load. If you feel resistance, check the connections on the card and the Dell XPS M1730 Battery motherboard, and the reorganization of the map.

NOTE: To avoid any damage has occurred in the mini-map, never the cables on the card and remove the Sony VGP-BPS8 , Sony VGP-BPS8A .

  • Insert the card into the system board connector of the connector at an angle of 45 degrees.
  • Press the other side of the card into the slot on the system board until the card snaps into place.
  • Replace the locking screw.
  • Connect the cable to ensure the mini-card, route the cables correctly. (Connect Note: For more information on the cable to the port, see the documentation that came with your mini card.)
  • Insurance antenna cable used in protective mylar sleeve.
  • Replace the lid and tighten the eight screws.

Removing Flash Cache Module

  • Start your computer and remove the Sony VGP-BPS9/B Sony VGP-BPS9/Sbattery compartment cover Mini card.
  • Forward by touching a metal connector in the back of the computer. (NOTE: If you leave the area, ground yourself again when you return the equipment.)
  • Remove the M2 x 3 mm to ensure screw.
  • Lift the FCM out of its system board connector.
    minica11

Replacing the FCM

NOTICE: Install the FCM in the WWAN slot. Do not install an FCM in the WLAN card slot. Doing so may cause damage to your Dell Inspiron 6400 Battery computer.

  • Insert the FCM connector at a 45-degree angle into the system board connector labeled “FCM”.
  • Press the other end of the FCM down into the slot on the system board until the card clicks into place.
  • Replace the M2 x 3-mm securing screw.

Now we successful replace our Wireless Mini-Cards for my laptop by ourself.

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Choosing the right battery for laptop 2: best battery life

March 10th, 2010

The laptop battery life

A laptop battery in a laptop is aging faster than in other types of use, because of the heat. The use of a laptop’s internal temperature rises to 45 ° C. The combination of high temperature and promotes the full state of charge Zellenoxydation, a circumstance which, if once present can not be undone.

The life expectancy of the Sony VGP-BPS8 battery when it is working with high ambient temperatures, is only half as large, such as in moderate 20 ° C or. If a laptop left in a parked car, made worse in the blazing sun, the situation also. All batteries suffer permanent capacity loss, due to high temperatures but lithium-ion is more affected than other battery chemistries.

Some Japanese computer manufacturers have introduced a number of notebooks, for which the Dell Latitude D600 battery is arranged outside, and is a part of the housing. This design increases the battery life because the battery operates at room temperature. Some models allow for different battery sizes in order to adapt them to various requirements.

Lithium-ion is well suited for laptop users who continually switch between fixed-power and XPS M1330 battery. This user profile meets primarily for sales, maintenance and medical personnel. Here are the reasons why.

With nickel-based batteries, the charger performs a full charge every time, when the portable device is connected to a fixed power. The Latitude D630 battery is charged until a signal arrives, indicating that the battery is full. This signal is either a voltage change or an increase in temperature. Due to the delayed reaction, a permanent capacity loss occurs caused by overcharge and high temperature. Lithium-ion only receives charge if the voltage is low.

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Japan steel plate produced a high-efficiency CIGS solar cells

March 8th, 2010

Japan steel plate and Industrial Science and Technology Research Institute (hereinafter referred to as middle class & Research Institute) used a newly developed low-cost metal chassis, tried out CIGS (copper indium gallium selenide) solar cells,such as inspiron 710m battery and inspiron 6000 battery , its conversion efficiency is high as 16.7%. Japan Steel plans to enable the development of metal around the bottom to achieve commercialization in 2011.

Conversion efficiency of CIGS solar cells on thin-film type solar cell is higher, the two companies expect the solar cell can be a crystalline silicon solar cells, following after the new battery. Film CIGS solar cells can be made into softness of the solar cells, developing a film on the metal chassis technology. It is reported that previous studies mostly hard metal floor of the CIGS solar inspiron e1705 akku have a negative impact of the titanium foil and the molybdenum foil-based, but there is a large area material supply and cost issues in such bottom . To address these issues, the two companies also consider to use low-cost stainless steel foil, but the high temperature film solar cells, the metal chassis of the elements can spread to the CIGS layer, so there is serious impact on power generation efficiency.

The Japan Steel has developed a steel foil-based thin metal floor ,its cost may be lower than the low-carbon steel stainless . low-carbon steel titanium foil is less than the original price of 1 / 10, and it is about half of stainless steel foil and polyimide film about 1 / 4.

For the effect on the efficiency of CIGS solar inspiron 1525 battery elements of proliferation, the two companies go through the formation of an independent film surface treatment to control. The surface treatment film can be film in the atmosphere,and can support low-cost technology.

The conversion efficiency of CIGS solar cells reached the highest level of global ,production capacity & Research Institute had been promoting the metal chassis-based flexible solar cells development. In addition, also working on the development of large area modules. Japan steel production & Research Institute use the development of low-cost film with a surface treatment of metal chassis prototype CIGS solar cells,such as inspiron 1520 battery,the small area unit conversion efficiency is up to 16.7% (intrinsic conversion efficiency, cell power generation area of about 0.5cm2). The conversion efficiency “is used when the high efficiency of low-cost floor” (two companies).

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Choosing the right battery for laptop

March 8th, 2010

What is the best battery for a laptop?

Laptop’s are known for challenging his hosts for their batteries. They require an uninterrupted power flow, but conversely, offer poor working conditions. The result is that the laptop battery can not deliver the required operational time and the device shuts off too early, often with very short warning. In this article we talk about the unhappy marriage between the laptop and the battery, and examine the causes why the batteries degrade faster here than in other portable devices.

What is the best battery for a laptop?

Laptop batteries have a unique challenge – they must be small and light. Laptop batteries need to be invisible, and can provide enough performance for the user so that during a five-hour flight, for example, from Toronto to Vancouver, you can work with it. In reality, provides a laptop battery power for approximately 90 minutes operation. Many users complain because of a shorter operating time.

Computer manufacturers are reluctant to offer larger batteries, since they are bigger and heavier. A recent survey showed that the option for longer operating time with larger and heavier equipment by most users were rejected in favor of the solution offered today. Whether better or worse, we have learned, with the short operating hours, the laptop’s Dell Inspiron E1705 Battery live longer.

The energy density of modern batteries is growing about 10% per year. The benefit of better battery performance will be offset by ever-increasing power requirements of the laptop’s. This follows a similarly long battery life in powerful laptop’s.

Most laptop’s are powered with Lithium-Ion. This chemistry has a high energy density and is easy. It can be seen at the moment no breakthrough on the horizon that would provide a miracle Inspiron E1505 Battery that could deliver more performance than the known electro-chemical batteries.

Fuel cells, once available, will offer a continuous power and be able to replace the fuel cartridge when it is empty. Unfortunately, commercial fuel cell for laptop’s and other portable devices are still far away. Dealing with the performance, the dimensions and price are currently the highest hurdles. The first fuel cells are more likely to work as a portable battery chargers, because as a Dell XPS M1730 Battery replacement. Today’s fuel cell has the difficulty of being able to deliver spontaneously to demand high performance.

The operating time of a laptop battery is related to the use of a computer. A computer that is used for financial accounting, requires less VGP-BPS8 power than if, for example written to, read, or surf is expected. The manufacturers prefer to specify the operating time for devices that are not in use.

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The temperature and battery charging 3: battery recharge cycles

March 6th, 2010

Be lowered in the second phase of the charge cycle, the charging current, however. The ability to absorb the load is progressively reduced when increasing the charge state of the battery. When the Sony VGP-BPS9 Sony VGP-BPS9/B charge current at too high a value remains in a later stage of the charge cycle, the excess energy is converted into heat and pressure in cells. Finally, a leak will be created to allow escape of oxygen and hydrogen. The escaping gases cause damage not only the electrolyte, they are also highly flammable! A white substance in powder form accumulates around the leak, and indicates where the gas has escaped.

An Ultra-fast charging can only be used in batteries, which are designed for fast charging. The application of high charging currents on Normalbatteriezellen will lead to heating of the current path. The contacts of portable ThinkPad T42 batteries also suffer if the current flow through the spring contact is too small. Such contacts need to be replaced prematurely. It often appears at the top of the contact small, barely visible craters which have a high resistance to produce or act as an insulator at all. The heat created by a bad contact can cause even melt the plastic of the adapter. Higher voltage at the contacts to improve the flow of current.

Aging ThinkPad T43 batteries with increased resistance and different cells are not suitable for ultra-fast charging, even if they are designed for it. Depth conductivity cells leads to heat generation, which ultimately damages the cells. Keeping the weaker cells, the lower the capacity can be fully charged earlier than the good cells and begin to heat up quickly. Some batteries generate so much heat that the plastic body warms up and can become deformed. A temperature monitoring is essential for rapid and ultra-fast charges.

Different manufacturers offer pulse chargers. By inserting short discharge pulses between each pair Ladeimpulsen the load behavior can be improved. This method promotes the disassembly of oxygen and hydrogen gases, thus lessening the pressure cells, which leads to a lower cell temperature. Pulse chargers are also known for the development of crystal nickel-based vgp-bps8 batteries is reduced (memory) effect. Most of the Cadex battery chargers for nickel-based batteries contain this feature.

Some advanced chargers automatically adjust the charge current depending on the ability of the battery to include any other charge. An empty Latitude D630 battery is expected to start as a very high charge current. Towards the end of charging, the charging current is increasingly reduced. In older batteries will then take into account the possibilities and the charging takes place automatically according to battery characteristics.

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New ideas for solar cells

March 4th, 2010

Recently, U.S. researchers are jointly developing a tiered solar thermal hybrid solar cells, solar cells for bp-522 battery and thermoelectric material combination is used to absorb light and heat ,which are two different forms of solar energy. Meanwhile, the U.S. Department of Energy also hoped that the solar cells is made into tile shapes to replace the now widely used wooden tiles.

The company currently located in Columbia University. The researchers hope that the conversion efficiency of roof solar sb-lsm80 battery can reach 12%, although the efficiency is not high, but considering the low cost,it is still attractive. At present, models produced: the solar photovoltaic cells is under the outermost layer of protection of in the solar panels, followed by the”functional upgrades sandwich” referred by researchers from the plastic tube composed of thermoelectric materials. the cold water flow into Plastic Header Pipe, playing the role of the cooling panels, out of hot water is for the people to use. In the plastic tube below the bottom of the battery plate: plastic strengthened stories. Solar photovoltaic cells can convert solar electromagnetic radiation into electricity, while the thermal layer will convert solar thermal energy into heat. Researchers presented, plastic pipe,”feature upgrades sandwich” , plays an important role in the whole hybrid solar panels especially in the summer, the solar np-fh70 battery ,temperature is too high, the conversion efficiency becomes low, this time the role of plastic pipe cooling device will be very obvious.

Right now, this battery addition to those already in the Columbia University laboratory to be tested ,outside it will be tested in the pool will be a Douglas College in New York on the roof of an area of 6.4 square meters of construction. The researchers also calculated the cost of the np-f330 battery technology to generate electricity, which is determined that a new energy technology can compete with fossil fuels, the most basic standards.

This is the first stage of the experiment. If successful, the researchers will go into the second phase in the next 6 months : From the Department of Energy to obtain one million U.S. dollars, in a year the technology was further improved. After the third phase is likely to cost 10 million U.S. dollars for the nb-2l battery, technology of commercial production. Some studies presented, and they wanted to use the technology in market within five years,.

U.S. Department of Energy said they strongly supported the plan. Solar photovoltaic cells for Sharp md-mt66 battery have not been able to penetrate into the market, mainly due to the initial high cost, conversion efficiency is low, but the solar thermal hybrid rooftop solar panels are part of the building’s surface, and the efficiency has been improved. At the same time, these low-cost, durable panels is extremely suitable for installation in ordinary residential and commercial buildings, it has the wide range of uses and broad prospects.

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The temperature affection for different battery

March 3rd, 2010

The temperature affection for different battery

Nickel-metal hydrides are less tolerant than nickel-cadmium in terms of the charge at low or high temperatures.

Nickel-metal-hydride can not load quickly at temperatures below 10 ° C, nor can they load slowly below 0 ° C. Some chargers are designed so that they Ladekoeffizienten and the ambient temperature change. Price considerations are not allowed to provide Apple PowerBook G4 12 inch Battery battery chargers for consumer electronics with temperature sensors.

At higher temperatures, the charge acceptance of nickel-based Apple PowerBook G4 Battery is drastically reduced. A battery that can hold at room temperature, a medium capacity of 100%, starts at 45 ° C ambient temperature, only 70%, and even only 45% at a temperature of 60 ° C. This highlights the poor performance of some car chargers in the summer!

Lithium-ion Apple PowerBook G4 15 inch (aluminum) Battery provide a good charging in to deep as well at high temperatures. Some cells allow charging with 1.0 C from 0 ° C to 45 ° C. Most lithium-ion cells, however, prefer a lower charge current when the temperature at 5 ° C or falls below. Must be dispensed on the loading below the freezing point, as a coating can be effected by lithium metal.

The lead-acid Apple PowerBook G4 17 inch Battery is not very sensitive to extreme temperatures, as we all know, on the basis of experience with our car batteries. Part of this tolerance is the inertia of lead-acid systems are attributed. Some battery models allow a shop below the freezing point with a small charging current, while others are damaged, and provide only reduced capacitance values, and life expectancy is shortened.

To improve the loading performance of lead-acid Apple PowerBook G4 17 inch Battery at low temperatures and prevent thermal effects during the warm-up, it is important to monitor the charging voltage limits to be set. An installation of this measure can extend the life expectancy of a battery up to 15%. General guidelines recommend making a correction of about 3mV per cell per degree Celsius. The voltage correction has a negative coefficient, ie The threshold voltage decreases when the temperature rises.

Heat kills the Apple MacBook Pro 17 inch Battery! The warmer the cells shorten, the life expectancy. Higher temperatures may not always be foreseen, especially during a fast charge. It must, however, attempt to keep these periods as short as possible. While 45 ° C is temporarily tolerable, begin a battery from 50 ° C damage is increasing. Moreover, cells are warmer in the interior of a battery, always a few degrees when the temperature of the battery case.

Ultra Fast Chargers

Some manufacturers of chargers promise amazingly short loading time of 30 minutes or less. With well-balanced cells and moderate temperature can nickel-cadmium VGP-BPS10 s batteries, which are designed for fast charging, are being charged in a very short time. This is achieved with a simple increase of the charging current during the first 70% of the charge cycle.

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The temperature and battery charging

March 1st, 2010

Charging at high and low temperatures

Rechargeable laptop battery operate in a reasonably wide temperature range. However, this does not automatically allow a charge in the same temperature range. While the use of batteries in hot or cold environment can not be avoided, the users, the conditions during the load somewhat under control. The charge should be strictly carried out at moderate temperatures.

In general, older battery technologies, such as Nickel-cadmium, tolerant loading at extreme temperatures. Nickel-cadmium Apple A1045 Apple A1061 batteries can be recharged with a quick charge within approximately 1 hours. Such a fast charging should be done within the temperature range from 5 ° to 45 ° C. An even narrower temperature range from 10 ° to 25 ° C, however, yields better results.

Charging below 5 ° C caused a reduced Ladekoeffizienten of 0.1 C (one tenth of the capacity). This is in the area where oxygen and hydrogen inside the cell can be reduced. Due to the declining settings at lower temperatures, leading to a too fast charging excessive cell pressure, which can lead to a Zellenleck. Such a Apple A1148 Apple A1175 battery can be charged under these conditions fully before.

Industrial Apple iBook G4 12 inch Battery that require rapid charging at low temperatures, include a thermal circuit to keep the battery in a temperature range to be allowed. As soon as the charging temperature is lower than is produced during the loading process gas, which in turn leads to a warming, and thus improve the loading conditions. The ideal charger automatically adjusts itself so that there is a balance between gas and charging.

Nickel-metal hydrides are less tolerant than nickel-cadmium in terms of the charge at low or high temperatures. Nickel-metal-hydride can not load quickly at temperatures below 10 ° C, nor can they load slowly below 0 ° C. Some chargers are designed so that they Ladekoeffizienten and the ambient temperature change. Price considerations are not allowed to provide Apple PowerBook G4 12 inch Battery battery chargers for consumer electronics with temperature sensors.

At higher temperatures, the charge acceptance of nickel-based Apple PowerBook G4 Battery is drastically reduced. A battery that can hold at room temperature, a medium capacity of 100%, starts at 45 ° C ambient temperature, only 70%, and even only 45% at a temperature of 60 ° C. This highlights the poor performance of some car chargers in the summer!

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