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The answer for laptop battery frequent asked questions

Last week I buy a Dell notebook from Dell.com, then I want to know some laptop battery tips and problems by google. I found many frequent asked questions about laptop battery, but there are various answers for them. So I send a email to laptop battery expect “Jack Smith” in http://www.laptops-battery.co.uk/ about these doubts. He reply me in the August 11, below is the reply content.

What is the six months warranty laptop battery?

Generally the laptop battery quality warranty is one year, but we can find many 6 months warranty “Original laptop battery” in ebay and other online shops? What is these six months warranty laptop battery?

Most the six months warranty batteries are the old battery with the new cells, old original battery shell and protection board. You can find the detail introduce here “How to replace battery cells inside laptop battery“. As the battery protection board is old one, so the laptop battery can only work properly about six months.

For laptop battery, the higher capacity the better?

For different models (particularly different size) battery, the higher capacity battery can work longer. Exclude the size and weight factors, of course that the higher capacity the better.

However, the same battery type, the same nominal capacity (for example,Inspiron 6400 battery 6600mAh), the actual measurement capacity is different: for example One Inspiron E1505 battery capacity is 6600mAh, and the other is 6700mAh, then the 6700mAh battery is better then 6600mAh?

The actual situation may be that : In the high capacity battery’s electrode materials, increase the initial capacity of more things, and reduce the materials to stability of the electrode. It may result that after used for some charging-discharging cycles, the capacity of high-capacity battery reduce rapidly, while the capacity of low battery is still strong. Many laptop battery manufacturers often use such method to produce the high-capacity battery. After used for six months the GD761, KD476, TD347 battery standby time is too less.

Enhance the battery capacity can reduce the battery cycle life. If the laptop battery manufacturers are not make great efforts in battery material, it is impossible to truly “improve” the capacity of the battery.

It is worth to store the fully-charged battery

Lithium-ion batteries have a very bad characteristic, that is the lithium-ion laptop battery aging time. When a lithium-ion battery in storage for some time, even not in recycled, its capacity also lost in the storage. Because the lithium-ion battery anode materials begun the failure process when manufactured. Different temperatures and Pavilion DV8000 batteryy charged state cause the different consequences statute. You can the get the general conclusion by following data ( the percentage of capacity in the form):

Storage temperature - 40% state of charge ——- 100% state of charge

0 degrees ———- 98% (a year later ) ——- 94% (a year later)

That is the all, hopes that can help you.

Go out of laptop battery maintenance eight Mistakes chapter two:

Misunderstanding Five: can use compatible battery charger to charge the battery

Notebook computer power than mobile phones, the most extreme circumstances, the power needs of Dell D620 battery charging at the same time and running at full speed to meet the required machine power supply, laptop charger compatible with the general no, because the various models of voltage, current, or even interface are different, can be common in a variety of notebook “compatible chargers are” likely to be of genuine more expensive than the charger, even if the same interface, if the voltage and current below the nominal value of machinery, machinery working at full speed when the battery may not be able to obtain sufficient charge current, which damage the battery is a great one.

If the Dell D630 battery charger voltage and current much less than the nominal value, or even find that simply can not boot or will boot but can not be recharged, so choose the best power to choose the time and the same original, it can not be found, please pay attention to a certain voltage and current machines to comply with the nominal values of the different products with the plant in general the same interface, but the voltage and current may be different, we must pay attention to this point!

Misunderstanding Six: need fully charged battery (or fully discharger) before store the battery

Or whether it is full-discharge, in fact, is incorrect, put long-term preservation of full-discharge HP DV2000 batteries will lose their activity and even lead to the control circuit protection self-locking and can not re-use, full of power will bring about long-term preservation of the safety problems.

The most the preservation of the ideal way is to discharge to 40% and then save, lithium HP DV1000 batteries are afraid humid and high temperature, it should be placed in a cool dry place to preserve, but the temperature not too low, otherwise the capacity will be greatly reduced, about 20 degrees Celsius is an ideal Storage Temperature.

Seven Mistakes: battery dying, but also for its own batteries

The battery is a lot of people for such a deadly, manufacturers seem to expect someone to do so long ago, many brands of laptop batteries are designed to have self-locking function, once the batteries from the control circuit, the circuit enters a state of self-locking

Only the use of specific means to be answered, before the control circuit will not work, that is to say the same end-of-life battery, notebook Inspiron e1705 battery batteries can not change the batteries, if you can not have to change batteries, please remember to find the specialized battery maintenance company to wield the sword, its own waste for just small, that after the failure of efforts to frustration and frustration is the worst.

Eight errors: 99% charge has been less than 100%, will continue to charge explosion

Notebook Dell 6400 battery almost no chance of explosion, the largest is the issue of high fever caused by melting of shell, but few give rise to fire, was released by a small number of incidents, the fact is that when the production technology of non-performing, leading to short-circuit in the use of a result, even if Most of this will be short-circuit the battery disconnect circuit protection circuit is not greater damage.

Unless it is in the protection of the circuit before the Dell 6000 battery short-circuit (before the COMPAQ laptop battery explosion is caused by time should be), and such a thing in my notebook a large number of contacts over the past 3 years, have only seen two cases. It is such a thing in cell phones a lot, in the final analysis or the quality of the battery problem, a large number of poor-quality mobile phone battery assembly, and almost never on the laptop’s battery did not sell, because there is no owner of a large amount of models that should be compatible battery production.

The reason why 99 percent to less than 100 percent after the charge is often because the record of the battery control circuitry and battery state of their own bias, the latitude D620 battery has not reached the record control circuit voltage, the power control circuit has been charging the battery in fact has been full of, such problems can usually be corrected through the solution, but even if there is no correction, because the majority of charging circuit will be filled in after a long time can not be disconnected automatically, and even automatically record wise 99% of the current set of 100 %, even the fool has been non-stop design, but also because of the current very small at this time and will not cause harm.

The current laptop batteries are basically the temperature detection circuit, when the Dell XPS M140 battery temperature is too high, most of the control circuit will be forced off the battery to prevent further temperature rise, so this kind of charge to the explosion in the notebook computer battery occurred no less chance of the first prize in the lottery.

No matter how scientific the maintenance measures, the battery will be aging are, like how the magic of cosmetics and beauty maintenance can not prevent the old woman into a maximum of just delaying it, the only way to avoid aging of the battery is not in use (so many people would Select the battery had to), but this 20D battery grip laptop but have lost the meaning of the … … the 40D battery Grip is always used as the aging time, in fact, is a semi-consumables, for almost all notebook manufacturers regardless of the host how long the warranty, the battery in general insurance for one year only.

If you do the maintenance are in place to calculate the weekly use of a inspiron 640m battery, which can accommodate about one year later remained 60% ~ 70% of the capacity of my battery is probably the case, that if it looked increasingly haggard battery is a torture to you, the best way is do not get down and pray or not turn off power plug , or is it a buy as a backup, as long as the battery and notebook in order to bring value and fun enough, I would like to their sacrifices are worth it.

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Go out of laptop battery maintenance eight Mistakes

In notebook computers, Pavilion DV8000 battery is a love-hate component, it gives the mobile use of notebook computers the ability to continue to work at every turn but a few days compared to a week or even mobile phones and MD, notebook battery time remains a tooth If the cell phone battery can only use eight hours, people would be reviled, but it results in the notebook PC which is the pride of the best, to say the development of notebook computers in the slowest parts, in addition to the keyboard should turn the battery

That there is such a joke: Intel’s investment and technology through participation in support of the new battery technology, “For us, the lithium batteries in the 1990s has been good enough,” director of marketing for Intel’s mobile platforms, said Mooly Eden, “Battery Improvement of teens just like the relationship between young people and the same: everyone talking about, but no one has done. ”

Maintenance Pavilion DV9000 batteries notebook computer users has been a hot topic, but in fact there a lot of misunderstanding, in the final analysis from two aspects, one is “thinking does not keep up with the nickel-metal hydride batteries to lithium batteries of changes”, while a more comedy, from the phone, because in fact the majority of mobile phone users access to the first use of the equipment repeatedly rechargeable battery, it will take for granted some of the habits of mobile phone to the laptop was an extension of.

I did not intend to cultivate the majority of notebook users into experts, then there is no need, I just want to bring some of the most vulnerable to clarify the misunderstanding and give the correct perspective and practices.

A misunderstanding 1 : the need for notebook computers bought three times repeated charge-discharge in order to activate the battery.

Unless you buy a notebook computer is more than one year of product inventory, or need not do so because there are Pavilion DV1000 batteries in the battery when the factory has been activated, and the batteries in the package when the battery into the notebook, after a equivalent to the activation of the test, so you get the battery in hand, already have been activated, and again three charge-discharge process was an increase in unnecessary depletion of the battery.

Misunderstanding 2: the first charge must be sufficient enough for 12 hours.

This early stage those who do not have the pavilion DV4000 battery control circuit of the Ni-MH battery models are applicable, but for now have a smart charging and discharging control circuit for the notebook battery is a joke, when the notebook computer battery is full, the charge current will be automatically cut off , even if you continue to charge 120 hours, there will not be any change in status, and generally speaking, even the slowest machine charge, 6 hours when fully charged, the rest of the “charge” is just a waste of their time. It is time to get new machines should be fully discharge first rechargeable Pavilion ZV6000 battery.

Misunderstanding Three: the need for regular battery calibration, the total charge released once a month.

Strong memory effect for nickel-hydrogen batteries, which is an essential task, but for Li-ion Pavilion DV2000 battery, the cycle is too frequent, and lithium batteries does not completely eliminate the memory effect, but has greatly reduced the memory effect, if you use the battery is frequent, then you should discharge the battery to the relatively low (about 10 ~ 15%) re-charging, but even if the discharge to the open machines are not (0 ~ 1%), belong to the lithium batteries have greater depth of injury discharge generally every two months to do the operation once it. If you rarely use the battery, then every 3 months as long as the first such operation carried out on it.

Misunderstanding Four: correction to enhance the battery capacity can improve the battery capacity

The so-called correction, when the actual capacity of the Pavilion DV6000 battery and control circuit capacity not the same as the record, the depth of a battery charge and discharge operation, so that a record control circuit to the battery close to the actual situation, this is a true performance of the battery capacity rather than enhance the capacity of the operation, the key factor here is the actual capacity of the battery, if the actual battery capacity than the control circuit in the capacity to record high, correction can increase the battery capacity seems, if the actual Pavilion ZV5000 battery capacity than the control circuit the capacity to record low, the correction will reduce the battery capacity seems also that many people debate the reasons for the effect of correction, keep in mind that correction is the true battery capacity is shown by the elimination of the battery and control circuit between the deviation, as demonstrated by the capacity will increase or decrease, this is the status of the battery itself, rather than corrected by your decision. Correction is likely because the battery discharge when the depth of injury, but a substantial reduction in capacity.

Many manufacturers provide a battery calibration procedure carried out, the Windows version and BIOS version, it is best to use these procedures to correct, Windows version can be carried out while working, BIOS version can not be like this.

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Laptop battery cant charge

Hi guys, maybe we always face this situation: you own a Inspiron 6400 notebook for your business and work. you have finished work which must be reviewed by your customer or BOSS tomorrow, you accidently left your laptop in sleep mode and the inspiron 6400 battery discharged completely, then you charge your battery with AC charger, aslo your notebook OS reports that it is charging. After one night, you want to take your laptop to office, but the GD761 battery shows it is at 0% state-of-charge.

You try to charge it many times, but not work, that means your laptop battery cant charge. Why your laptop battery cant charge, it is caused by your laptop or your laptop battery or your AC adapter?

First : Try cleaning the contacts metal on the battery. Ensure that your notebook’s power adapter connect the power, another paragraph has been connected with the notebook, and if the problem is not resolved. Would suggest that you remove the KD476 battery power adapter only through your computer.

If you can not restart the computer, it should be a problem with power adapter, I suggest you replace the adapter.

Also if your battery is very hot when charging, it maybe cant charge. You’d better take the GD761 battery out of laptop. After 1 hours, the battery temperature lower, then installed the battery to the laptop and charging.

There will be a large voltage electricity when charging the battery and plug in/out battery. The interface client often spark. In that time it is very easy to break the a1189 battery and mainborad. Generally the laptop battery cant charge after too many plug in/out times. So you should turn off your laptop when plug in/out battery.

The laptop battery also have a automatic battery protection CMOS chip to prevent over-discharge and other wrong operation. Some times the CMOS chip will automatically start the automatic protection and lock the battery to forbid charging. So you must store your battery in a cool dry area for about 3-5 days to unlock the battery. If it is cant work you must send your battery to repair center or change a new laptop battery.

Usually you must calibrate your battery every two months. You will find some useful info about How to calibrate your laotop battery here.

Please notice this : Take care of your battery, dont over charge-discharge your battery too many times. You’d better charge your battery at about 20% state-of-charge and store it at about 40% stat-of-charge.

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How to Re-calibrate laptop battery

In the last artcile we know how to calibrate laptop battery. Now let me introduce some tips about re-calibrate laptop battery.

It is difficult to predict how long a laptop battery charge will last because each computer user has different habits and needs. The rate at which you use laptop battery power will determine how long you can use the battery of your laptop. You can re-calibrate your laptop battery if the battery’s life has gotten shorter over time. Your laptop battery might need a good calibration if it doesn’t seem to be getting the mileage that it should. How to re-calibrate laptop battery? The following paragraphs will give you the answer.

First put the laptop computer to sleep by turning off the screensaver and other power management settings of the computer. Then fully charge the computer and allow it to run all the way down until the computer shuts off automatically. Once the laptop battery has fully drained, charge it back up again and restore the screensaver and power management settings.

Re-calibrate your battery every month or so by fully charging, fully discharging, and then fully charging again. Basically to have a chance to re-calibrate your laptop battery is to turn off all power-saving features completely and then fully recharge them. If it doesn’t work for the first time then try two more full discharges and recharges.

The above way of re-calibrating the laptop batteries works well with laptops using Ni-MH cells. But not with laptops using Li-Ion batteries because deep discharges will actually decrease the charge capacity and lifespan of Li-Ion cells. Moreover Li-ion batteries irreversibly lose approximately 20% capacity per year from the time of manufacture at a typical 100% charge level at 25deg.C, even when unused. Li-ion batteries irreversibly lose approximately 2%, 4%, 15% at 0deg.C, 25deg.C and 40deg.C respectively, when stored at 40% charge level. That is every deep discharge cycle decreases the capacity of the Li-ion batteries. As the Li-Ion batteries are chemical in nature, charging and recharging is not going to fix the problem once the chemical reactions stop happening. Therefore the best advice for re-calibrating the Li-Ion batteries is to store the battery at 40% charge if it kept unused for any unlimited period of time. Also don’t leave the battery in the laptop if you don’t use the battery or if you plug the laptop into outlet power.

You can also re-calibrate your laptop battery using Thinkpad T61 Battery Maximizer in order to maximize your laptop battery’s life. If your laptop has IBM ThinkPad Battery MaxiMiser and Power Management features installed, you can verify the condition of the laptop battery. You can check the status of your battery using the Battery MaxiMiser Gauge in the taskbar tray. The ThinkPad’s Lithium Ion battery pack that seems to be an intelligent battery uses a microprocessor to monitor its capacity. Then the microprocessor of the battery pack passes the information about the remaining battery capacity to the laptop. The laptop indicates the capacity with high accuracy.

Using the Dell inspiron 6400 Laptop Battery Learning Utility, a modified version of a Win98 boot floppy, can also help you. Just place it in the floppy drive, and then turn on the computer. The re-calibration process is automated and takes about six hours to finish. This utility is available in different versions for different models. You can run the utility every two months.

If the laptop battery is still bad then it must have developed a memory that cannot be erased easily. If calibration doesn’t help, then it is the right time to purchase another battery.

Extend laptop battery life

We prefer laptop to PC most for portable office work, the laptop battery is the most important part of the laptop working.So we must take a high attention to the laptop battery life.

We say the laptop battery life is not the laptop battery working time, but the battery working time determine the laptop battery life. Also the laptop battery life means that the using time (charge-discharge cycle of the battery). Generally this number always between 400-600 cycles. So we can prolong the charge and discharge rate to extend the battery life. That means you must try your best to extend the laptop battery working time. Also we can hack and revive the “dead laptop battery” to extend the laptop battery charge-discharge cycle.

As we all know, usually the 6 cell capacity laptop battery are only can last work for 2-3 hours in natural working. So we can extend the laptop working time by using the following tips:

Use high capacity battery : You can choise the higher capacity battery for longer working time. The inspiron 1300 battery prefers a partial rather than a full discharge. Frequent full discharges should be avoided when possible. Instead, charge the battery more often or use a larger battery.

Only run what you need. Keeping programs running in the background will require more system resources, and use more of the precious battery juice. There’s a reason that some programs load slower than others, and that’s because they need more system resources. Try to keep as few programs as possible open, and avoid programs that slow your computer down even at the best of times.

Dim the Lights :

Turn down the brightness of the LCD panel (via the Function-key combo, or in the Control Panel’s Display Settings dialog) to the lowest level you can tolerate. The backlight sucks power like the Rockefeller Center Christmas tree.

Charge and discharge : For lithium ion batteries, you do not need to discharge them fully and recharge constantly. Since they don’t have the same “memory” as older nickel-metal hydride batteries, it is actually better to discharge a lithium ion only partially before recharging. You need to do a full discharge only about every 30 charges.

Be careful with the external peripherals too. Unplug USB devices, PCMCIA devices and any other crazy things you’ve got plugged in if possible. as your system uses power to interact with them.

Run your laptop in less performance : the more performance of laptop, the more power expend.

Take out your battery : Consider removing the inspiron 6000 battery from a laptop when running on fixed power.

Carefully maintain your battery : keep your battery in dry clean and cool place. Wet and dirty can erode your laptop battery. Avoid propping your laptop on a pillow, blanket, or other soft surface that can heat up. Your battery is a lot less efficient when not within its standard operating temperature range.

Revive dead laptop battery : continue use dead battery by using some methods to activation them.

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6 Cell Dell inspiron 1300 battery

53 WHr 6-Cell Lithium-Ion Primary Battery for Dell Inspiron 1300/ B120/ B130/ Latitude 120L Laptops

Inspiron 1300 battery specs:

* Provides 53 WHr capacity

* Offers reliable power for dependable performance

* Powers up your system for business trips and vacations

* This product has been tested and validated on Dell systems to ensure it will work with your computer

* Supported by Dell Technical Support when used with a Dell system

Overview

Lithium-Ion laptop battery are longer lived than conventional batteries and do not require replacement as often. This 6-Cell Lithium-Ion Primary Battery from Dell™ helps you power up your system for business trips and vacations. With a capacity of 53 WHr this battery lets you work seamlessly when you are on the move. This product has been tested and validated on Dell systems. It is supported by Dell Technical Support when used with a Dell system.

This product comes with 1 year limited warranty. For more information about warranties, please click here: www.dell.com/warranty.

Dell Part# : 312-0416. Fits for : inspiron 1300, inspiron B.

Tech specs :

Device Type: Notebook battery

Battery Quantity: 1

Technology : 6-cell lithium ion

Voltage Provided: 11.1 V

Capacity: 53 Wh

Customer review :

My original battery worked for barely a year. Second one lasted 3 months, now it doesn’t work at all. I follow all the recommendations for preserving battery power. It’s a pretty cheap practice for Dell to try to make money off of repeated purchases of weak and bad batteries, weaker than inspiron 6000 battery. Between the bad batteries and the bad customer service, I’m never purchasing from Dell ever again.

ConsBattery failure suddenly after warranty expired.
Very inconvenient as battery indicator inaccurate and often indicates there is power when actually there is less than 2 minutes.

The expense of replacement battery is just ridiculous. I have enjoyed Dell products for the past 5 + years and now questioning the value and durability/reliability over time. One year is not enough!