Laptop INFO

March 2, 2010

About rechargeable batteries

Filed under: battery grip — Tags: , , — ecsem3 @ 6:20 am

As awareness of environmental protection, rechargeable batteries(such as inspiron e1505 battery )are also more and more popular for consumers. However, consumers generally reflects a lack of expertise in rechargeable batteries, in the face shelves dazzling variety of brands, as well as values ranging from milliamperes (mAh) labeling, often from confusion to confusion, do not know how to choose. Rechargeable battery technology in a recent seminar, the experts pointed out that some domestic battery manufacturers mark the capacity of rechargeable batteries is not standardized, there are exaggerated acts of misleading propaganda.

Battery capacity should be a range

Experts said that milliamperes (mAh) in fact represents the required discharge rates the capacity of the Dell latitude d600 battery can release value, that is, the different electrical appliances we use, because a different discharge rate, the battery can be released The power is different. Therefore, the capacity of a rechargeable battery will not have a fixed value of milliamperes, but should be a range, marking the highest and lowest battery capacity. For example a battery mAh should be "2000mAh to 2300mAh", but can not just mark a specific value to mislead consumers, but it is regrettable that the current domestic capacity of rechargeable batteries on the market have only a nominal mark the basic capacity of value.

On the other hand, precisely because the capacity of rechargeable batteries is an upper and lower limits of the capacity range, take the latitude d820 battery for example , which is drilled by some manufacturers of loopholes, they are often only marked on the battery out of the battery capacity of the extreme upper limit in order to attract those who seek high-capacity buyers.

According to electrical appliances to buy batteries

Some consumers buy rechargeable batteries, the assumed that the bigger the better when mA, regardless of their usage, experts pointed out that this is actually a waste of resources, behavior, contrary to the State to promote the energy saving recommendations .

In fact, the rechargeable batteries should be based on electrical appliances to purchase, need to consume high-current appliances such as digital cameras and other digital products, you can consider buying a large-capacity battery, but for the frequent use of electrical load, such as the Walkman and toys, etc. may not be must use large-capacity battery, but should focus on considering the durability of the Dell latitude d830 battery .

In addition, high-capacity rechargeable battery in the cycle of life is much less than the small-capacity batteries, such as the 1600 milliamperes when the rechargeable battery, the standard charge may be recycled 800-1000 or more times, but the 2400 milliamperes when the sony vgp-bps2a battery charge, under the standard can only be recycled less than 300 times. This is because the large-capacity batteries in the course of instantaneous release of high-current, overload elements in consumption of nickel batteries, reducing the elements to restore the performance of nickel, thus shortening the life cycle of the battery.

Experts believe that consumers should be the proper use of rechargeable batteries,for one thing,the Dell vostro 1500 battery, it is necessary to know more about some of this knowledge, learn to use electrical appliances according to type to select the battery. As manufacturers, also have the responsibility and obligation to the right, in its packaging marked mAh rechargeable batteries, upper and lower limits of the interval value, rather than irresponsibly marked the absolute value of a paradox.

February 26, 2010

Common fuel cells

Filed under: digital camera battery, laptop battery — Tags: , , — ecsem3 @ 5:06 am

Here are five kinds of fuel cells :

Proton exchange membrane fuel cell (PEMFC)

the electrolyte of Proton exchange membrane fuel cell(like the inspiron 1520 battery) is a thin polymer membrane in the proton exchange membrane fuel cell,such as poly [perfluoro sulfonyl] acid (poly [perfluorosulphonic] acid), and protons can penetrate, but not conductive NafionTM , while the electrode is composed of basically carbon. Hydrogen go into the fuel cell to reach the anode,and cracked into hydrogen ions (protons) and electrons. Hydrogen ions go into the cathode through the electrolyte penetration, while the electrons flow through an external network to provide electricity. At the same time, to form the air of oxygen for supplying the cathode, and combine with electrons and hydrogen ions to form water.

Alkaline fuel cell (AFC)

Alkaline electrolyte fuel cell use a potassium hydroxide aqueous solution or a stable matrix as electrolyte ,such as Dell inspiron 6000 battery, and the electrochemical reactions move from the cathode to the anode reacts with the hydrogen in water and electronics ,which is slightly different. These electrons first provide energy for the external circuit , then returning to the cathode to react with oxygen and water to produce more hydroxyl ions.

Phosphoric acid fuel cell (PAFC)

Such cells use liquid phosphoric acid as the electrolyte, the operating temperature is slightly higher than the proton exchange membrane fuel cells and alkaline fuel cell operating temperature, it is 150 ~ 200 ℃ or so, but still rely on the platinum electrode catalyst to speed up the reaction. The anode and cathode reactions and proton exchange membrane fuel cell is same, but because of its higher operating temperature, so its reaction is faster than proton exchange membrane fuel cell cathode speed on the cathode ,take the Dell inspiron 6400 battery for example .

Molten carbonate fuel cell (MCFC)

Molten carbonate fuel cell (for one thing ,the Dell latitude d830 battery )uses a molten lithium-potassium carbonate or lithium sodium carbonate as the electrolyte. When the temperature is heated to 650 ℃, this salt will melt, producing carbonate ions, flow from the cathode to the anode , and combine with hydrogen produce water, carbon dioxide and electronics. Electronics and then return to the cathode through an external circuit, generating in this process.

Solid oxide fuel cell (SOFC)

Solid oxide fuel cell operating temperature is even higher than the molten carbonate fuel cell temperature, used as solid ceramic electrolyte, such as yttria stabilized zirconia and other solid ceramic electrolyte, instead of using the liquid electrolyte. Its operating temperature is located between 800 ~ 1000 ℃. In such a fuel cell for Dell inspiron e1505 battery , when the oxygen ion moving from the cathode to the anode, so that oxidation of fuel gas (mainly hydrogen and carbon monoxide mixture)generate energy. Anode return to the cathode to reduce the access of oxygen through the external circuit, thus completing the cycle.

February 22, 2010

IEC provides the identification method of rechargeable battery

Filed under: Battery, battery grip — Tags: , , , — ecsem3 @ 12:14 am

According to IEC standard ,Ni-Cd Ni-MH Dell inspiron 1520 battery are identified from the five components :

  1. Battery Type KR identify nickel-cadmium batteries HF said that HR-type Ni-MH battery Ni-MH battery;
  2. Battery for Panasonic cgr-s003 size information, including the diameter of a circular cell height square height width of the thickness of the battery with a slash between values separated by units of mm;
  3. Discharge characteristics, said symbol L fit within the discharge current magnification in the 0.5C ;

    4. M said that appropriate discharge current magnification in the 0.5-3.5C or less.

    H said that appropriate discharge current magnification in the 3.5-7.0C or less.

    X indicates that the Dell latitude c500 battery battery can 7C-15C high-rate discharge current work under .

  4. High-temperature battery symbol expressed with the T ;
  5. Battery CF connecting piece, said on behalf of HH without connecting piece, said battery connected in series pull-shaped pieces used to connect pieces HB indicates that the battery connected in series with a side by side with the connecting piece ;

For example, a square nickel-metal hydride ,17inch apple macbook pro battery that HF18/07/49 width 18mm, thickness 7mm height of 49mm

KRMT33/62HH that nickel-cadmium battery discharge rate in the 0.5C-3.5 between the high-temperature series of single-chip cell-free connections 62mm diameter and 33mm height

Secondary lithium battery according to IEC61960 standard identification is as follows:

  1. Battery for Dell inspiron mini 9 battery identify the composition of three letters followed by a five figure number of cylindrical or 6 square ;
  2. The first letter said that I said the battery anode material for lithium-ion battery with built-L, said lithium metal or lithium alloy electrode electrode ;
  3. The second letter indicated that C-based cathode materials for battery electrodes N cobalt nickel-based electrode M of manganese-based electrode V of vanadium-based electrode ;
  4. The third letter is R, said cylindrical shape of the Dell inspiron e1705 battery cell, said square cell L ;
  5. Digital cylindrical battery 5 figures, respectively, the diameter and height of the battery unit mm diameter unit height mm diameter or height of either one-tenth of a size greater than or equal to 100mm when the two dimensions should be added to a ramp between the line, square battery 6 figures, respectively, the thickness of the battery unit of the width and height of 1 mm 3 size of any size greater than or equal to 100mm when the slash between the three dimensions of the Casio np-30 should be added that if any one of less than 1mm, in the preceded by the letters of this size for this size of unit is one-tenth of t mm ;

For example:

ICR18650 that a cylindrical lithium ion Dell inspiron mini 9n battery cathode material for cobalt with a diameter of about 18mm high of about 65mm.

ICR20/1050

ICP083448 that a square secondary lithium-ion battery cathode material for the cobalt its thickness is about 8mm, the width is about 34mm high of about 48mm.

ICP08/34/150 that a square secondary lithium-ion Casio np-60 battery cathode material for the cobalt its thickness is about 8mm, the width is about 34mm high of about 150mm.

ICPt73448 that a square secondary lithium-ion battery cathode material for the cobalt its thickness is about 0.7mm, the width is about 34mm high of about 48mm.

February 21, 2010

how to identify genuine mobile phone batteries ?

Filed under: Battery, digital camera battery — Tags: , , — ecsem3 @ 2:26 am

If we want to extend the Dell inspiron 7500 battery ’s effective use of time, in addition to the quality of the charger should have guarantees, the proper charging technique is also essential, because the poor quality of the charger or charging the wrong methods will affect the battery life time and cycle life, Xiaobian remind you that as far as possible with the original charger for mobile phone charging.

  1. the battery factory, manufacturers have carried out active treatment, and conduct a pre-charging, the Dell inspiron 7500 battery have more than electricity, a user said the battery charge in accordance with the time period of adjustment, standby is still a serious shortage, if the battery is indeed the genuine battery, then this kind cases, an adjustment period should be extended to 3-5 times and then fully charge and discharge.
  2. if the new buy a lithium-ion cell phone Dell inspiron 8000 battery , then 3-5 times before the charge commonly referred to as an adjustment period, more than 12 hours should be sufficient to ensure the full activation of the lithium-ion activity. Lithium-ion battery without memory effect, but a strong inert, should be given adequate activated in order to guarantee that used to achieve the best performance.
  3. some automated intelligent rapid charger when the lights change direction, only that was full of 90%. Charger will automatically change with the slow charging the Dell inspiron 8100 battery is full. it i s best to use the full battery, otherwise it will shorten the usage time.
  4. before charging, lithium batteries do not need special discharge, discharge improper battery will be damaged.
  5. charging as far as possible to slow Chong Chongdian to reduce the fast charge mode;
  6. After the Dell inspiron 630m battery fully charge and discharge cycles for three to five times, its internal chemicals will be all "activation" to achieve best results.

February 8, 2010

What is the Fuel cell vehicles

Filed under: battery grip, digital camera battery — Tags: , , — ecsem3 @ 10:54 pm

Fuel cell vehicles are a kind of electric vehicles, its Dell latitude d531 battery energy make chemical reaction through hydrogen and oxygen , rather than through combustion, directly into electricity, or the. Fuel cell chemical reaction process does not produce harmful products, so fuel-cell vehicles are pollution-free cars, fuel cell energy conversion efficiency of internal combustion engine is higher than the 2 ~ 3 times, so from energy use and environmental protection, fuel akku vehicles are an ideal vehicle.

Hydrogen fuel latitude d510 battery vehicles cane get through several ways . Some vehicles directly carrying pure hydrogen fuel, while some vehicles may be equipped with a fuel reformer, able to hydrocarbon fuels into hydrogen-rich gas.

The individual fuel cells must be integrated into the fuel cell group, in order to obtain the necessary momentum to meet the traffic requirements.

In recent years, fuel Dell latitude d505 battery technology has made significant progress. World-renowned automobile manufacturers such as Daimler – Chrysler, Ford, Toyota and General Motors has announced plans in 2004, before fuel cell vehicles on the market. At present, the fuel cell car prototype being tested in order to fuel cell-powered bus transport in several cities in North America, the ongoing demonstration projects. In the development of fuel Dell latitude d505 battery vehicles still exist in the technical challenges, such as fuel cell integration, improve the commercialization of electric vehicles, fuel processor and auxiliary motor vehicle manufacturers are moving integrated components and the direction of efforts to reduce component costs, and has has made remarkable progress.

Compared with traditional vehicles, fuel Dell latitude d400 battery vehicles have the following advantages:

  1. zero emission or near zero emissions.
  2. reducing water pollution caused by oil leakage.
  3. reducing greenhouse gas emissions.
  4. improved fuel economy.
  5. Dell latitude d500 battery improve the engine combustion efficiency.
  6. running smooth, no noise.

February 1, 2010

The structure and characteristics of zinc-manganese batteries

Filed under: battery grip, battery news — Tags: , , — ecsem3 @ 11:56 pm
  1. Cylindrical zinc-manganese batteries

    2. Cylindrical-type zinc-manganese Dell xps m1730 battery on the isolation of different materials can be divided into cardboard paste-type cells and batteries. Paste-type zinc-manganese batteries or regular batteries, cardboard battery caused by differences in the composition of their formulations of different electrical properties, is divided into C-(or ammonium type) cardboard batteries (also known as high-capacity battery), and P-type (or zinc type) cardboard batteries (also known as high-power batteries).

    Paste-type battery that is the traditional zinc-manganese dry batteries for Dell xps m1530 battery , the cathode material with a low activity of natural manganese dioxide, isolation material is a starch and flour paste isolation layer, the electrolyte is mainly H4CL ammonium chloride, zinc chloride aqueous solution, the negative electrode is zinc cylinder, the general poor performance of its discharge capacity lower end of Sony np-fc11 battery life easy to leakage, but the price is cheaper, more suitable for small currents and intermittent discharge of occasions, such as for radio, flashlight, etc.

    C-board battery is the Dell xps m1330 battery in the paste on the basis of layers of paper pulp instead of using glue paper, not only positive increased by 30% of filler content, but with 30-70% of the highly active manganese instead of a natural manganese, so capacity will be increased the use of the scope could be broadened and used for low current discharge occasions, such as for watches and clocks, remote controls, radios, flashlights and other occasions.

    P-board Dell vostro 1500 battery using zinc chloride-based electrolyte, cathode material used in all high activity of manganese powder, such as manganese, active manganese and its leak-proof performance, much higher than the paste-type and C-type batteries, used for high-current continuous discharge occasions, such as for cameras, flash setting, tape recorders, shavers, electric toys.

  2. Cylindrical Alkaline Battery

    3. Cylindrical alkaline zinc-manganese Sharp md-mt831 battery , commonly known as alkaline batteries, zinc manganese battery series, the performance is the best variety. The shell has generally 08F nickel-plated steel is made by cold pressing at the same time double as cathode current collector, electrolytic manganese dioxide as cathode material pressed into the ring close to the cylinder wall to ensure good contact, the negative use of powder made of zinc tablets, and pastes, are in the middle of the battery, during the negative current collector inserted (usually negative Brass Nails), set the bottom of the fluid and negative connected to the battery for Kodak klic-5001 inside the cathode with the divide between the (separation layer) separated from its external use nylon or polypropylene ring off, while achieving a sealed battery, the battery outside the battery is almost the same with the general.

    Although the cylindrical alkaline zinc-manganese Jvc bn-vm200 battery nominal voltage of the battery the same as the ordinary, are 1.5 volts, but because the structure of alkaline batteries used in ordinary batteries opposite electrode structure, increases the relative size between the positive and negative electrodes, and the with high electrical conductivity of potassium hydroxide solution replaces the ammonium chloride, zinc chloride solution, zinc anode is also changed by the sheet into a grainy, increase the reaction area of the negative electrode, combined with use of a high-performance manganese powder, so electric performance can be greatly improved, and in general, the same type of alkaline manganese batteries are ordinary battery capacity and discharge time of 3-7 times greater gap between the two low-temperature properties, alkali-manganese battery for Fujifilm np-95 is more suitable for large-current continuous discharge and demanding The operating voltage of the electricity occasions, especially for camera, flash set, razor, conductive toys, CD machine, high-power remote control and so on.

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January 18, 2010

Lower prices caused sales Batteryis is lower than expected

Filed under: battery grip, battery news — Tags: , — ecsem3 @ 10:52 pm

“2009, the company achieved battery forOlympus li-10boperating income of 2.23 billion yuan, and increase 4.46%, net profit attributable to parent company 197 million, EPS is 0.7 yuan, and up to 52.72%, it is below our expectations of 0.75 yuan.” it came from a a company manager’s remarks in China .

Lower prices caused sales Nikon EN-EL4 battery is lower than expected . We believe that due to reasons of the order cycle, ,th price in 2009 lead-acid battery is from high to low, unit shipments in the second half of the battery prices fell 15% -20%,it become the main reasons of a battery sales rose only 3%, Meanwhile, orders for delayed delivery of the end part of the battery for Canon NB-2LH also have negative impact. We expect revenue growth in 2010, batteries will be accompanied by the commissioning of new production capacity to achieve 35%.

Dell inspiron 3500 d300gt battery Costs caused by the rate of decline in income growth increased rapidly. In 2009,prices and the decline in demand overseas have an impact on the electrical business , there were 11% negative growth in the the electrical business, while increasing traction transformers caused transportation costs is increasing with it , so management fee rate and cost of sales rate rose by 1.1% and 1.4% respectively. We expect the next two years, as it is subject to the impact of return to revenue growth, cost rate(it contains the Canon NB-2L battery sales cost) itwill decline.

2010 Motor business will quickly recover. Price of Panasonic CGR-S003 battery and motor business will quickly recover, we expect the electric business, year on year growth rate will reach 40%. At the same time, we will see the company-specific ABS motor vehicle will be the highlight of the new business.

2010, consolidated gross margin level will be maintained at above 20%. Despite the rising costs will lead to gross margin of transformers and JVC bn-vf823 Battery
operations declining by 4% -5% , but the profitability of these two businesses is still far better than conventional motor business, and thus through the product structure adjustment, the company still is able to maintain 20 % or more of the consolidated gross margin level.

Additional items will create new growth points. Company intends to make proposed additional projects is no more than 8,000 additional shares, the new project will constitute a new growth point in those projects ,such as transformers, energy-efficient small and medium sized motors and large-capacity lithium-ion Dell precision m series battery project.

Lower profit from Dell precision m90 series battery sales forecasts and investment ratings. We slightly reduced the company’s performance forecast annual, EPS is expected to 10,11,12 were 0.93 yuan, 1.17 yuan and 1.45 yuan. Given the current share price has reached our target price of 25 yuan, we have downgraded from buy to overweight.

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December 3, 2009

Dell inspiron 1520 battery review

Filed under: Battery — Tags: , , , — admin @ 12:32 am

Dell inspiron 1520 battery review

The update of Dell’s popular inspiron E1505 battery, the Inspiron 1520 has generated a lot of interest in the notebook community. It features a complete design update, the new Intel Santa Rosa platform, and the best graphics card Dell has ever offered in a laptop of this size.

The battery Inspiron 1520 is compatible with Dell notebooks including the Inspiron 1520, and replace the Dell battery code : 312-0518, 312-0589, 312-0590, 312-0594, 451-10477, fp282, gk479, nr239. This product comes with 1 year limited warranty.

The Dell inspiron 1520 battery Specs :

Battery Type: LI-ION
Technology : 6-cell lithium ion
Capacity: 49WH
Dimension: 201.2*47.1*20.3mm
Weight: 325g
Manufacturer Part# : FP282
Also work with : Dell Inspiron 1520 battery , Inspiron 1521 Battery, Dell Inspiron 1720 Battery, Dell Inspiron 1721 Battery , Dell Vostro 1500 battery , Dell Vostro 1700 battery

Effective laptop battery life under heavy processor load with high performance settings appears to be about three hours with the 9-cell battery. You could probably extend that to four hours or more by disabling wireless, turning down screen brightness, and using less intensive applications. The 9-cell battery does extend about 3/4” from the back of the laptop, but this does not seem especially noticeable given the already larger size of the notebook.

Customer Ratings :

So every year or so I’m expected to shell out ~$150 for a new inspiron 1520 battery? Mine stopped working shortly after one year. When I plug it in vista says “Battery 0%, NOT CHARGING” now, so I cannot use the laptop unless I am somewhere where I can plug it in. Great!
Not to mention it took almost 3 months for Dell to even ship this thing to me in the first place. I’ve been buying Dell computers for 10 years but not anymore

I used to have the 9-cell Dell 1520 battery before it had to be replaced, and the 6-cell doesn’t compare. The 9-cell lasted a lot longer without having to be recharged. Overall the battery is fair considering that it is the only one you can buy for the Inspiron 1520. It will last you for about a year, then be ready to buy a new one.

The article from : Laptop battery blog

October 21, 2009

Dell battery User Guide

Filed under: laptop battery — Tags: , — admin @ 2:51 am

Dell battery User Guide

Battery Performance

NOTE: For information about the Dell warranty for your computer, see the Product Information Guide or separate paper warranty document that shipped with your computer.

For optimal computer performance and to help preserve BIOS settings, operate your Dell portable computer with the main battery installed at all times. One battery is supplied as standard equipment in the battery bay.

NOTE: Because the Dell 6400 battery may not be fully charged, use the AC adapter to connect your new computer to an electrical outlet the first time you use the computer. For best results, operate the computer with the AC adapter until the battery is fully charged. To view battery charge status, click the Start button, click Control Panel, double-click Power Options, and then click the Power Meter tab.

Battery operating time varies depending on operating conditions.

NOTE: Battery operating time (the time the inspiron 1720 battery can hold a charge) decreases over time. Depending on how often the battery is used and the conditions under which it is used, you may need to purchase a new battery during the life of your computer.

Operating time is significantly reduced when you perform operations including, but not limited to, the following:


  • Using optical drives

  • Using wireless communications devices, PC Cards, or USB devices

  • Using high-brightness display settings, 3D screen savers, or other power-intensive programs such as 3D games

  • Running the computer in maximum performance mode.

NOTE: It is recommended that you connect your computer to an electrical outlet when writing to a CD or DVD.

You can check the Dell D620 battery charge (see Checking the Battery Charge) before you insert the battery into the computer. You can also set power management options to alert you when the battery charge is low (see Configuring Power Management Settings).

CAUTION: Using an incompatible battery may increase the risk of fire or explosion. Replace the Dell D630 battery only with a compatible battery purchased from Dell. The battery is designed to work with your Dell computer. Do not use a battery from other computers with your computer.

CAUTION: Do not dispose of batteries with household waste. When your battery no longer holds a charge, call your local waste disposal or environmental agency for advice on disposing of a lithium-ion battery. See “Battery Disposal” in the Product Information Guide.

CAUTION: Misuse of the Dell D620 battery may increase the risk of fire or chemical burn. Do not puncture, incinerate, disassemble, or expose the battery to temperatures above 65 (149). Keep the battery away from children. Handle damaged or leaking batteries with extreme care. Damaged batteries may leak and cause personal injury or equipment damage.

Checking the Battery Charge

The Dell QuickSet Battery Meter, the Microsoft Windows Power Meter window and icon, the XPS m140 battery charge gauge, and the low-battery warning provide information on the battery charge.

Dell QuickSet Battery Meter

If Dell QuickSet is installed, press

to display the QuickSet Battery Meter. The inspiron e1705 Battery Meter displays status, battery health, charge level, and charge completion time for the battery in your computer.

Microsoft Windows Power Meter

The Windows Power Meter indicates the remaining 40D battery grip charge. To check the Power Meter, double-click the icon on the taskbar.

If the computer is connected to an electrical outlet, a icon appears.

Charge Gauge

Before you insert a DV1000 battery, press the status button on the battery charge gauge to illuminate the charge-level lights. Each light represents approximately 20 percent of the total battery charge. For example, if the battery has 80 percent of its charge remaining, four of the lights are on. If no lights appear, the battery has no charge.

Health Gauge

The battery operating time is largely determined by the number of times it is charged. After hundreds of charge and discharge cycles, DV2000 battery lose some charge capacity, or battery health. To check the battery health, press and hold the status button on the battery charge gauge for at least 3 seconds. If no lights appear, the battery is in good condition, and more than 80 percent of its original charge capacity remains. Each light represents incremental degradation. If five lights appear, less than 60 percent of the charge capacity remains, and you should consider replacing the battery. See Specifications for more information about the battery operating time.

NOTICE: To avoid losing or corrupting data, save your work immediately after a low-battery warning. Then connect the computer to an electrical outlet, or install a second battery in the media bay. If the battery runs completely out of power, hibernate mode begins automatically.

A low-battery warning occurs when the battery charge is approximately 90 percent depleted. The computer beeps once, indicating that minimal battery operating time remains. During that time, the speaker beeps periodically. If two DV4000 batteries are installed, the low-battery warning means that the combined charge of both batteries is approximately 90 percent depleted. The computer enters hibernate mode when the battery charge is at a critically low level. For more information about low-battery alarms, see Configuring Power Management Settings.

Conserving Battery Power

Perform the following actions to conserve battery power:


  • Connect the computer to an electrical outlet when possible because battery life is largely determined by the number of times the battery is used and recharged.

  • Place the computer in standby mode or hibernate mode (see Power Management Modes) when you leave the computer unattended for long periods of time.

  • Use the Power Management Wizard (see Configuring Power Management Settings) to select options to optimize your computer’s power usage. These options can also be set to change when you press the power button, close the display, or press Fn Esc;.

Charging the Battery

NOTE: With Dell ExpressCharge , when the computer is turned off, the AC adapter charges a completely discharged Dell 1300 battery to 80 percent in about 1 hour and to 100 percent in approximately 2 hours. Charge time is longer with the computer turned on. You can leave the battery in the computer for as long as you like. The battery’s internal circuitry prevents the battery from overcharging.

NOTE: If you want to use a 9-cell inspiron 1300 battery to obtain Dell ExpressCharge, you need to use it in conjunction with a 90-W AC adapter.

When you connect the computer to an electrical outlet or install a battery while the computer is connected to an electrical outlet, the computer checks the battery charge and temperature. If necessary, the AC adapter then charges the battery and maintains the battery charge.

If the battery is hot from being used in your computer or being in a hot environment, the battery may not charge when you connect the computer to an electrical outlet.

The Dell 6000 battery is too hot to start charging if the light flashes alternately green and orange. Disconnect the computer from the electrical outlet and allow the computer and the battery to cool to room temperature. Then connect the computer to an electrical outlet to continue charging the battery.

Replacing the Battery

CAUTION: Before performing these procedures, turn off the computer, disconnect the AC adapter from the electrical outlet and the computer, disconnect the modem from the wall connector and computer, and remove any other external cables from the computer.

CAUTION: Using an incompatible GD761 or U4873 battery may increase the risk of fire or explosion. Replace the battery only with a compatible battery purchased from Dell. The battery is designed to work with your Dell computer. Do not use a battery from other computers with your computer.

NOTICE: You must remove all external cables from the computer to avoid possible connector damage.

    To remove the battery:

  • If the computer is connected to a docking device (docked), undock it. See the documentation that came with your docking device for instructions.
  • Ensure that the computer is turned off or in hibernate mode (see Hibernate Mode).Slide the two battery-bay latch releases on the bottom of the computer toward the sides of the computer until they are engaged.
  • Grasp the battery by the Dell 1525 battery tab and slide the battery horizontally toward the front of the computer.
  • Lift to remove the battery from the bay.

    • To replace the battery, follow the removal procedure in reverse order.

    Storing a Battery

    Remove the Dell 1520 battery when you store your computer for an extended period of time. A battery discharges during prolonged storage. After a long storage period, recharge the battery fully before you use it.

    The document is from Dell.com support

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