Monday, December 28, 2009

why laptop battery suddenly stop discharging

why laptop battery suddenly stop discharging


Maybe we all face this situation : Some times we should travel to some place as the business or holiday. You know the 12 hours or more journey time is too wearily. So we like enjoy ourself with our laptop to watch movie or play game. Suddenlly the Dell Latitude D620 Battery stop dischargging in the 70% power state or more. You maybe very confuse about this : maybe some problem with my laptop or my laptop dead. In fact most of them are caused by the temperature or the over-Current.

Most laptop batteries have the protection circuit. When the laptop battery temperature is too high or discharge current is too large, out of laptop battery protection circuit action standards. Thus causing the Dell Latitude D600 Battery power automatically stop discharging and force the issue.

The most common situation is that laptop battery is running at full speed . The Dell Inspiron 710m Battery current is too large to result in automatic protection. For example, from the drive to capture the contents of DVD discs into the mobile hard disk, when a large number of both host and peripheral power consumption, is likely to make current standards of protection beyond the battery. D0 not panic in that case. You only used to disconnect peripherals and wait about 10 minutes, then you can reboot the machine.

There is also a common situation : using the battery in a hot environment and high-load operation, , so that the ambient temperature plus the heat generated by the battery self-discharge Dell Inspiron 640m Battery protection circuit may exceed the preset temperature, which is particularly high frequency P4 machines in high-temperature environment may occur after high-speed operation.

Encountered such a situation should remove the batteries placed in a cooler place (remember not to put refrigerator frozen!), After half an hour should be back to normal. High temperature for the lithium Dell TC030 Dell PC764 battery damage is relatively large, less than a last resort and should be avoided in high-temperature environment and high-load operation.

The article Via Battery blog

Monday, December 21, 2009

Useful tips for better using your battery

Useful tips for better using your battery

Missing an important call because your cell phone wasn’t properly charged is a common problem in an increasingly wireless world. Rechargeable laptop battery hold the key to our reliance on convenient, portable products, yet few people understand the basics rules of recharging rechargeable batteries. Even fewer know that when certain rechargeable batteries can no longer hold a charge, they can and should be recycled.

Nickel-Cadmium (Ni-Cd) batteries are the most common type of portable rechargeable Toshiba laptop battery, and they’re used to power products such as cellular and cordless phones, camcorders, power tools and many other consumer electronic devices. By the year 2000, it is estimated that more than 75 million Ni-Cd batteries will be sold in the United States alone.

“Most people don't know that the used Ni-Cd Inspiron 1521 Battery that collect in their desk drawer or those left in products because they no longer hold a charge, can and should be recycled,” said Ralph Millard, Executive Vice President of the Rechargeable Battery Recycling Corporation (RBRC), an international, not-for-profit organization that runs the “Charge Up to Recycle!” program for Ni-Cd battery recycling.

To get the most out of your rechargeable Dell Inspiron 1720 Battery  and battery-powered products, RBRC recommends the following guidelines:

  • Charge your new Dell Latitude D620 Battery overnight (14-16 hours) before using it for the first time. This is called “initializing” and will enable you to obtain maximum battery capacity.

  • Let your battery cool to room temperature before recharging. The charge efficiency of most batteries is greatly reduced at elevated temperatures.

  • Recharge iBook G4 14 Battery only when they are near to fully discharged. You can tell that a battery is discharged by a sharp drop in power or speed.

  • Keep the contact of rechargeable batteries clean – wipe them with a cloth soaked in alcohol.

  • Never return a fully-charged Apple A1022 Apple A1039 battery to the charger for an extra boost. This will overcharge the cells and shorten the life of the battery.

  • Never leave your cellular phone, camcorder, etc., in the charger when not charging, unless approved by the manufacturer’s instructions. Don’t use your charger as a stand! Continuous charging will shorten battery life.

  • If your rechargeable Ni-Cd Apple A1045 Apple A1061 battery will no longer hold a charge, don’t throw it away! Call 1-800-8-BATTERY or visit to find the nearest retail site or recycling center among the 26,000 participating across the country. National retailers participating include ACE Hardware, Ameritech, Batteries Plus, BellSouth Cellular, BLACK&DECKER, Car Phone Store, Cellular One, Circuit City, GTE Wireless, RadioShack, Porter Cable Factory Service Centers, Sears, Target and WAL-MART.

Thursday, December 17, 2009

laptop battery can not charge and dischage

laptop battery can not charge and dischage


Generally, we said our laptop battery dead means that : the battery can not charge or discharge. The laptop battery can not work after used for some months most caused by the problem. Also sometimes the battery suddenly can not be recognized by machine. This is the adapter or mohterboard problem (espacially in dell laptop battery).

To second problem we only can change the adapter or motherboard. So will talk some useful tips about the reason and solution to the "battery can not charge and discharge" for you.

The laptop battery can not discharge

Laptop battery can not discharge Reason:

  1. The laptop battery after the storage using and the life decay;

  2. Lacking charge or not be charged;

  3. Ambient temperature is too low;

  4. Discharge efficient less, such as the large current discharge cause voltage sharp drop to 0, then electricity can not be released

  5. The Toshiba PA3399U-2BRS battery has been in over-discharge protection.

Laptop battery can not discharge Solution:

  1. The Dell Inspiron 1525 Battery during storage should take a monthly charge and discharge;

  2. Charge the battery at 10% state;

  3. Use in a normal environment;

  4. Use proper adapter of the machine.

  5. Place it in icebox for about 12 hours and cool place 3-5 days to unlock the protection

The laptop battery can not charge

Laptop battery can not charge Reason:

  1. The Inspiron E1505 Battery in zero voltage;

  2. charger failure, no output current;

  3. External factors have led to the charging efficiency is too low (such as low or high temperature).

Laptop battery can not charge Solution:

  1. Check charger output voltage and current;

  2. Check the laptop battery charger output contacts is good or not

  3. Charge the battery with 1.5 times the maximum voltage of the battery, 1.5C high current charging, active the Sony VGP-BPS8 battery . (Only when the battery can not charge, use this method)

In the end, wish you have a good Christmas Day.

The article Via Battery 4 US

Tuesday, December 15, 2009

Laptop battery using FAQ

Laptop battery using FAQ

Q: How to store the laptop battery if not used for a long time?

A: Charge or discharge the Dell D5318 to about 40% state, and then placed in temperature of 15 to 25 degrees Celsius dry place, the temperature is too high and too low are easy to accelerate cell aging.

The original post from

Q: Should I remove the battery when notebook work with power?

A: It does not matter, the laptop battery own a protection circuit to avoid over-charging.

Q: My battery is now only work a very short period of time, how should I do?

A: If you've been use your battery frequently, then it belongs to cell aging which can not be avoided. You should change a new Dell U4873 battery or change the battery inside cells; If you store the battery for a long time, it may also lead to this situation. You need to completely discharge (up to fail to boot up) and then full chargerd, repeated several times to activate the battery.

Q: Laptop adapter can used in other laptop?

A: No, there are three obstacles, the first is the notebook computer manufacturers use various different voltage, such as IBM are 16V, COMPAQ mostly 18.5V, SONY VGP-BPS8 part of the model is 19.5V, are inconsistent. The second is different from the needs of current laptop is different from the 2A ~ 5.4A have a small machine needs a smaller current, big machine in the latter case. The third is the various manufacturers notebook power adapter interfaces are different, it is difficult general. Therefore there is no universal laptop adapter at present.

Q: Why does my IBM laptop screen brightness lower when using battery as using power?

A: This is the IBM default settings for random power management which is aimed at energy-saving:). If you do not like it, you can control software in IBM's ThinkPad Configuration Utility, select LCD project, then changed brightness from Normal to High. The Display option can set in the BIOS.

Q: Do the first three chargeing time must last 12 hours to new VGP-BPS9 battery?

A: This is not necessary because the current laptop has a prefect charge-discharge power management when the battery reached saturation, the control circuit will automatically switch to the circuit state.

Q: In order to prevent memory effect, we should charge the battery when it is fully discharged?

A: Every time charge of battery discharge is not necessary but harmful. Practice has proved that the Latitude d420 battery deeply discharge will shorten the life. Generally you should charge your battery when it is in 10% state. When the battery power is still more than 30%,donot charge the battery because the memory effect exist more or less.

Friday, December 11, 2009

Battery hog compare between the Windows and OS X

Battery hog compare between the Windows and OS X

One of the best reasons to get a new MacBook Pro battery, aside from the dazzling new screen on the 13-inch, and in spite of the SATA capping that’s apparently in place, is the extended battery life courtesy of the new built-in lithium polymer batteries. And by all accounts, even if you won’t necessarily reach Apple’s estimates, you will get more usage out of your notebook without having to connect to a power source. Or you’ll get more usage as long as you’re not running in Windows under Boot Camp, that is.

AnandTech’s Anand Shimpi has been running a MacBook Pro 13-inch battery through its paces over at his site, and while he was very impressed with the machine’s new battery overall, he noticed a considerable disparity between apparent power consumption under OS X, and under Vista. Nor was the difference marginal. Running OS X while only web browsing, Shimpi was able to coax a little over eight hours out of the notebook under OS X, and only six using Vista. That’s a two hour, or 25 percent difference.

Windows 7, which is supposed to make up for a lot of the mistakes Microsoft made with Vista, fared no better. The RC 1 version of the upcoming OS lasted only 5.48 hours using the same test conditions. Some of that can be ascribed to there not being final, optimized drivers for Windows 7 yet, but I doubt that accounts for the more than two-hour Latitude D620 Battery life  deficit it has compared with OS X running on the same hardware.

Windows supporters will no doubt chime in with claims that the Apple hardware is to blame, but Shimpi found some reason to believe that may not be the case. He spoke to a number of PC OEM manufacturers to see if they’d found a difference in Dell XPS M140 Battery  life between OS X and Vista, and though none would officially go on record, some at least admitted to seeing a similar difference to the one Shimpi had found.

Since Apple doesn’t officially support any third-party hardware, it’ll be hard or even impossible to prove that OS X is, in fact, a more Dell D5318 Dell GD761  battery-efficient operating system, completely independent of any hardware considerations. Still, that’s one less reason to ever commit sacrilege by dual-booting your Apple notebook, which is bad news for Windows sales, no matter what the cause.

All you hackintosh experts out there, feel free to chime in with your own Dell Inspiron 1520 Battery  life tales, since your experience running OS X on non-standard hardware might be the closest thing we can get to a fair standard for comparison.

Friday, December 4, 2009

The Sony External VGP-BPS8 laptop battery review

The Sony External VGP-BPS8 laptop battery review

I owned my Sony VGN-FZ for about 1 years. Now its original battery is nearly dead (just work about 30 minutes). Though the new battery can last about 2-3 hours when fully charged. I asked Sony Customre service if they can replace or repaire the battery for me. They said they can do nothing as the battery out of its warranty (just advise me to calibrate it).

As my work need to travel to everywhere in London, so I need a battery replacement urgently. I can not find anything from except "No match documents was found for your search. Please try with different keyword(s)." I serched in and find many original VGP-BPS8 batteries, but I cannot belive them(my last original latitude d620 battery which buing from a online shop is just a second-hand battery). So I choose a website : which sell the Sony VGP-BPS8 replacement.

After view the battery detail info and website shipping return policy, I decide to buy the external 7800mAh VGP-BPS8 battery. As it is 3000mAh more capacity than my 4800mAh. I think it can last longer but the 10400mAh one is too big and heavy. I ordered the battery in October 15 and received it in 25. It cost me 95.89 pounds and 10 pound shipping fee.

To my superise the package was sent with a CD, I do not know what it is. But When I installed the Sony VGP-BPS8 battery my laptop cannot recognize the battery. So I sent a email to the customer service about this, now they replied me in time (just after 10 minutes later). They said that I must update my Bios driver with the CD to help my machine run the battery. I did this and finally my laptop can work without the adapter.

My notebook power management shows it actually 7800mAh and can last 4.5 hours. Now I can go everywhere with my VGN-SZ. Something I want to say is that the battery is a little heavy . The battery sticks out of the laptop .. so get used to the new look of your laptop. Haha. Also you can buy the VGP-BPS8 battery in their partener website:

Some customer review may useful to you in Amazon (Original Sony laptop battery):

1) The laptop battery on FZ doesn't charge up all the way or maybe it's my laptop.

2) The battery sticks out of the laptop .. so get used to the new look of your laptop.

3) The battery stopped charging after only one week of purchase. The vendor (Infinite-Surplus) wouldn't return the battery and asked me to go through Sony which wasn't a great experience

I expected this battery to last longer (< 3 hrs) and didn't realize how it's design fits with the FZ series laptop. It props up the base of the laptop but is off-center due to the placement of the battery compartment. Make sure you lock the battery in, because it's designed to be used as a handle for the laptop and works well that way.

The review posted by Jack

Friday, November 27, 2009

Apple MacBook Pro features compare

MacBook Pro features compare

As we all know, apple produce the three Macbook Pro notebook : Macbook Pro 13", Macbook Pro 13", Macbook Pro 17". They are named for their LCD screen width, but they are not only differ by LCD screen width but also have their own feartures. Now let me introduce the features of each Macbook Pro notebook. Specially need to know this the Macbook Pro 13" is the newst notebook of Macbook battery series.

Apple 13-inch Macbook features

Precision aluminum unibody enclosure.

Machined from a solid piece of aluminum, the new MacBook not only looks stunning, it's also thinner, lighter, greener, and more powerful than ever. Also we call it Apple Macbook Pro 13".

LED-backlit display

The ultrathin 1280-by-800-pixel LED-backlit display shows off your digital media perfectly. And it's as easy on the environment as it is on the eyes: The gorgeous glass and aluminum enclosure is arsenic- and mercury-free, and LED technology makes it more power efficient.

Advanced NVIDIA integrated graphics

Experience the most powerful MacBook graphics ever. With a new NVIDIA GeForce 9400M processor, the new MacBook delivers up to 5x more graphics performance, so you can immerse yourself in lifelike 3D games with Sony VGP-BPS8 .

All-new, smooth glass Multi-Touch trackpad

Its redesigned with even more room for even more gestures. Now the entire glass trackpad is also the button, so its clickable everywhere.

Apple 15-inch Macbook features

Precision aluminium. The new gold standard
Carved from a single block of aluminium, the new MacBook Pro unibody enclosure is slim and streamlined with a soft-brushed surface and stunning contours.

Brilliant brilliance.

The moment you open your MacBook Pro youre greeted by glorious, full screen brightness. But thats only one gleaming quality of the glossy LED-backlit widescreen display. The picture is brilliant and sharp from corner to corner in VGP-BPS9 .

Graphics in full force

The new MacBook Pro reaches a new level of high-speed, high-end game-playing power. Not to mention pure performance for graphics-intensive applications like Aperture and Motion.

Even the keyboard is advanced

The Apple Macbook Pro 15" rigid aluminium keyboard webbing has been cut precisely to hold the keys. And the keys are curved to perfectly fit fingers.

Apple 17-inch Macbook features

The longest-lasting Mac notebook battery ever

The Apple Macbook Pro 17 battery in the new 17-inch MacBook Pro lasts up to 8 hours on a single charge1 and can be recharged up to 1000 times2 compared with only 200 to 300 times for typical notebooks. Combined, these advancements offer a dramatic improvement in battery lifespan: more than three times the lifespan of typical notebook batteries up to five years.

2.3 million pixels of perfection

With the high-resolution LED-backlit widescreen display on the 17-inch MacBook Pro, you get desktop-quality colour in an Apple notebook for the first time. The moment you open your MacBook Pro, youre greeted instantly by full, corner-to-corner screen brightness for Sony VGP-BPS9 . The 1920-by-1200-pixel resolution (133 pixels per inch) means you can view more palettes and windows or watch HD video in its native 1920-by-1080 resolution.

Graphics in full force.

The MacBook Pro reaches a new level of high-speed, high-end game-playing power. Not to mention pure performance for graphics-intensive applications like Aperture and Motion. Use the new NVIDIA GeForce 9400M integrated graphics processor for great everyday performance with up to 8 hours of Sony VGP-BPS8 battery life.

Precision aluminium. The new gold standard.

Carved from a single block of aluminium, the new unibody enclosure is slim and streamlined, making this MacBook Pro the worlds thinnest and lightest 17-inch notebook just 0.98 inch thin and 6.6 pounds. But its not just for looks.

Now we know the Macbook Pro series laptop are Precision aluminium and pretty interface, whats the difference between them?

All the data are from :

Trackbacklaptop battery blog

Wednesday, November 25, 2009

Battery Using Tidbit

Battery Using Tidbit

Most battaries that favor a constant charge and recharge capacity work in two different forms. Your standard Ni-Cd or nickel cadmium battery is a slow drain slow charge type battery, a complete drain and recharge is a standard that most of us know.

Not the case with Li-Ion, the lithium Latitude D520 Battery , and newer Metal Hydroxide batteries work better and last longer using the 100-40-100-20-100-40-100-40-100-20% recharge plans. On your initial charge of 100% charging you let the battery drain to 40% and then recharge to 100% and then the second depletion to 20% and back to a full recharge cycle. This helps maintain the battery condition and in some aspects the "Brain" of the Latitude D830 Battery so to speak is set in motion and maintains battery health througout time.

I myself thought the cycle was complete depleation of the battery on each recharge which actually shortens the life of the Sony VGP-BPS5 Sony VGP-BPS5A .(learn something new everyday).

Another item to remember is that when you plug in your laptop, and the indicator says fully charged, the battery is still being used in most cases and recharging. A good note is to remove the battery while in use of a power outlet and set aside until going mobile. This will also help prolong the battery. Hope this helps anyone who may be having to replace Latitude D620 Battery often.

(P.S.) also good for cell phone usage (have had my phone for 4 years with no problems in keeping a full charge of battery life for at least 2 days, havent replaced the battery yet).

The article Via Laptop Battery blog Battery Article Blogspot Quebecblogue

Friday, November 20, 2009

Dell inspiron E1505 battery review

I purchased this laptop 2 months ago with the 1.83 Duo Core porcessor, 1 Gig RAM, 7200 RPM 60 Gig HD, Windows media center and office basic and True life screen. The computer is really quite fast and trouble free thus far. The E1505 Battery or 6400 Battery is a great laptop for the traveling power user. It is not so big that I can't pack it from airport to airport, but is big enough that it is comfortable and easy to use. I have teh 1.86Ghz Core Duo, 2 GB ram, ATI X1400, Blutoot .

At 6 pounds, the Inspiron E1505 Battery will ship with Windows XP Media Center Edition 2005 to dictate the overall multimedia offerings so you can enjoy TV, music, movies, and photos. Both the E1505 and 6400 will come equipped with Intel's latest Dual-Core Duo processors at up to 2.0 GHz. To keep the prices down, these model only come with an integrated graphics solution however we suspect in the future (if demand calls for) there will be a discrete option.

The Dell Inspiron E1505 Battery and Dell Inspiron 6400 Battery are availablw now. Prices start at $929 for the E1505 and $979 for the 6400.

Performance from the 1.6-GHz Intel Core 2 Duo T5500 CPU is good choice for a budget mainstream portable and performed the?very well on?five of the seven tests, with a score of 231 on MobileMark 2005. Battery life, at 4 hours and 51 minutes, is excellent for a mainstream notebook and Latitude D620 Battery . The 128MB ATI Mobility Radeon X1300 graphics engine means you can even play 3D games. The E1505 delivered 85 fps on F.E.A.R., using autodetect settings. Although that was at lower resolution and with some eye-candy turned off, its more than we expected from a notebook in this price class

Basic features for both models:

  • Choice of 15.4-inch WXGA, WXGA with TrueLife or WSXGA+ with TrueLife displays
  • Intel Core Duo and Core Solo processor options (667 MHz, 2 MB cache) at up to 2.0GHz
  • Up to 2 GB shared(3) 533 MHz DDR2 memory
  • Intel Integrated GMA 950 graphics
  • Serial ATA hard drive up to 100 GB 7,200 RPM
  • Fixed 16X CD-RW/DVD drive or 8X DVD+/-RW dual-layer drive
  • Internal Intel Pro/Wireless 3945 (802.11a/b/g, 54Mbps) and Dell Wireless or internal Dell 350 Bluetooth options
  • Ports and slots include four USB 2.0, IEEE 1394, VGA, S-video and ExpressCard
  • Microsoft Windows XP Home, Media Center Edition 2005, or XP Professional
  • Six-cell 53 WHr Li-Ion Dell laptop Battery with nine-cell 85WHr Li-Ion upgrade option
  • Starting weight at 6.18 pounds (2.8kg)

That's the buyer's review : I bought this laptop with a gig of ram, a 80 gig hard drive, an radeon 1400 graphics card, and a 1.86 dual core processor. It works great and i love how you can play dvd's without booting windows. I can play all my games, even the graphics heav...y 3D ones not like my laso notebook Latitude D600 Battery .

I got the e1505 about 2 months ago and so far only managed to really screw it up once. I had to do the system restore (from the restore partition) and it only took about 10 minutes tops to reformat and reload the OS. The Radeon x1400 is very good for... what it is. I don't run real high res in my games so it performs very nicely and still looks good. The display is very sharp and crisp and all text is very legible even for my poor ol' eyes. It's very quick at video rendering for DVD creation and the boot time is very fast (about a minute) due to a very quick HD. My only gripe is all the extra junk Dell feels the need to pile on, and the fact that a factory restore disc is extra (although that seems to be the norm anymore). All in all, it's been a very good replacement for my aging desktop.

This laptop computer fits all my needs. I e-mailed this e-mail for the review on Dell Latitude D520 Battery. I do not know if I will ever want or use a different computer. It is perfact for any job that anyone may have or want.

The 15.4-inch UltraSharp widescreen display delivered strong colors when watching DVDs, even from a variety of angles. The speakers, which are located on either side of the playback controls, produced surprisingly good sound, even though the bass was a bit weak. This configuration has an 80GB hard drive for storing your digital music collection, along with gobs of photos and videos in your Sony VGP-BPS8 or Sony VGP-BPS2C.

The Dell E1505 is commendably quiet -- most of the time.? Even while watching a DVD, the fan remained off.? With a low power integrated video card, only one fan is needed to cool this machine.? The hard drive makes a subdued, but noticeable hum.

Only under heavier tasks does the fan does come on.? It has at least three speeds.? The lowest is very quiet, and more of a pleasing low pitched hum than an annoying whine? Unfortunately, running benchmarks (which can cause sustained full processor usage, something most programs rarely do) will often cause the fan to quickly bypass first and kick into second and then third gear.? It seems that when the fan starts, the CPU continues to warm for a few moments while the cooling begins to take effect on VGP-BPS9 , triggering a higher fan speed that is not really necessary.? After a while it will slow back down and stay there.? If the fan is already running at a lower speed when the benchmark starts, it usually won't speed up.? After 10 minutes of simultaneous 3DMark05 and Super Pi, the fan did go from the lowest to the middle speed.

Inspiron E1505 Battery life with the default 6-cell battery averages around three hours--not great, but not bad for a multimedia portable computer. Dell offers an upgrade to a 9-cell battery for under $100 if you need a lengthier life before recharging.

Its battery is very weak . Some users talk: I paid a premium for the 85Wh battery when I ordered my Inspiron E1505 and I am extremely disappointed that the battery has quit holding a charge after only 18 months...and now I'm looking at nearly $200 to order a replacement? I bought my Inspiron less than two years ago and I am now looking for my third battery. I should have purchased one way before now since I have to stay plugged up to use my laptop. Way too much money for a worst than terrible battery as XPS M1530 Battery.Additional Thoughts I will not buy any more Dell laptops. I advice you buy a new laptop battery replacement in

Dell includes a one-year limited warranty on these portable computers, which features at-home service if it's needed. The one-year period has become the de facto standard for most PC vendors these days.

As they ship, the Dell Inspiron E1505 or Inspiron E1705 Battery portable computers offer excellent core power and a good set of components. Gamers will want the graphics upgrade and video editors will want to step up the optical drive, but even if you do both, these portable computers still sell for well under a grand.

The article is from : Laptop battery

Thursday, November 5, 2009

Lithium-ion Battery Life and Death

Lithium-ion Battery Life and Death

Lithium-ion laptop battery packs are expensive, so if you want to make yours to last longer, here are some things to keep in mind:

  • Lithium ion chemistry Sony pcga bp71 prefers partial discharge to deep discharge, so it's best to avoid taking the battery all the way down to zero. Since lithium-ion chemistry does not have a "memory", you do not harm the battery pack with a partial discharge. If the voltage of a lithium-ion cell drops below a certain level, it's ruined.

  • Lithium-ion batteries age as Dell inspiron 6000 battery. They only last two to three years, even if they are sitting on a shelf unused. So do not "avoid using" the battery with the thought that the battery pack will last five years. It won't. Also, if you are buying a new battery pack, you want to make sure it really is new. If it has been sitting on a shelf in the store for a year, it won't last very long. Manufacturing dates are important.

  • Avoid heat, which degrades the Toshiba pa3465u-1brsbatteries.

  • Exploding Batteries

    Now that we know how to keep lithium-ion batteries working longer, let's look at why they can explode. Several news reports in the past six months describe laptops with lithium-ion laptop battery that caught on fire.

    If the Toshiba pa3107u 1brs battery gets hot enough to ignite the electrolyte, you are going to get a fire. There are video clips and photos on the Web that show just how serious these fires can be. The CBC article,"Summer of the Exploding Laptop," rounds up several of these incidents.

    When a fire like this happens, it is usually caused by an internal short in the battery. Recall from the previous section that lithium-ion cells contain a separator sheet that keeps the positive and negative electrodes apart. If that sheet get punctured and the electrodes touch, the battery heats up very quickly. You may have experienced the kind of heat a Toshiba pa3384u 1brs batterycan produce if you have ever put a normal 9-volt battery in your pocket. It a coin shorts across the two terminals, thebattery gets quite hot.

    In a separator failure, that same kind of short happens inside the lithium-ion evo n600c battery. Since lithium-ion batteries are so energetic, they get very hot. The heat causes the battery to vent the organic solvent used as an electrolyte, and the heat (or a nearby spark) can light it. Once that happens inside one of the cells, the heat of the fire cascades to the other cells and the whole pack goes up in flames.

    It is important to note that fires are very rare. Still, it only takes a couple of fires and a little media coverage to prompt a recall.

    The article is from

Thursday, October 15, 2009 Great battery online shop in US Great battery online shop in US

Last Friday, my dell 1520 battery died after used for 1 year (just 15days after its dell quality warranty). So I do not think I should pay 150$ for a New dell original 1 year warranty battery. I phoned to dell customer service that if they can recall the battery and repair the battery for me, but they say it will cost me 60-70 $. Oh I think it is worse than buying a new battery. But the 150$ is too expensive.

So I tried to search Dell 1520 battery replacement US in Google, and then I found a online shop specially for US, I easily search the dell 1520 battery there, and after view its policy and shipping site, I found that it is a international battery factory and battery online shop, It also has its partner in German UK and CA. It owned a battery factory in Hongkong and produce the battery pack for many Electronic Company.

Then I sent a email to its customer service about the shipping time price and discount. They replied me after 5 minutes and reduce my battery shipping fee as the light battery weight and they use usps to ship the packpage. So I order the New Dell 1520 battery (1 year warranty and 30 days money back) just $68.71 and I received it 7days later, the new battery pack can last 3 hours. In all it is a satisfactory shopping in .

The online shop is a battery supermarket for la ptop battery, camera battery and battery grip. And they store most popular laptop battery as Acer, Apple, Dell, Compaq, HP, IBM, Sony Toshiba and so on. Their battery factory supply the all the newest laptop battery, camera battery and battery Grip, then let me list the popular battery model and codes for you, then you can find the suitable battery there.

Apple Laptop Battery

IBOOK G4 battery
IBOOK G4 12-inch battery
IBOOK G4 14-inch battery
MacBook Pro battery
MacBook Pro 13 battery
MacBook Pro 15 battery
MacBook Pro 17 battery
PowerBook G4 battery
PowerBook G4 12 battery
PowerBook G4 17 battery
PowerBook G4 15 battery
PowerBook G4 15 battery

Dell Laptop battery :

Inspiron 1300 battery
Inspiron 1420 battery
Inspiron 1501 battery
Inspiron 1520 battery
inspiron 1525 battery
Inspiron 6000 battery
Inspiron 630m battery
Inspiron 6400 battery
Inspiron 9200 battery
Inspiron 9300 battery
Inspiron 9400 battery
Inspiron E1505 battery
Inspiron E1705 battery
Inspiron Mini 9 (8.9 series)
Latitude D410 battery
Latitude D420 battery
Latitude D430 battery
Latitude D500 battery
Latitude D510 battery
Latitude D520 battery
Latitude D600 battery
Latitude D610 battery
Latitude D620 battery
Latitude D630 battery
Latitude D800 battery
Latitude D810 battery
Latitude D820 battery
Latitude D830 battery
XPS M1210 battery
XPS M1330 battery
XPS M1530 battery
XPS M1730 battery

HP & Compaq battery

HP 510 battery
HP 530 battery
Mini 1000 battery
2133 Mini-Note PC battery
OmniBook XE3 battery
Pavilion DV4 battery
Pavilion DV5t battery
Pavilion DV6 battery
Pavilion DV1000 battery
Pavilion DV2000 battery
Pavilion DV4000 battery
Pavilion DV6000 battery
Pavilion DV8000 battery
Pavilion DV9000 battery
Pavilion ZV5000 battery
Pavilion ZV6000 battery
EVO N400C battery
EVO N800 battery
Presario 1200 battery
Presario CQ45 battery
Presario M2000 battery
Presario R3000 battery
Presario V2000 battery
Presario V3000 battery

IBM & Lenovo

Thinkpad A20 battery
Thinkpad R32 battery
Thinkpad R40 battery
Thinkpad R50 battery
ThinkPad R60 battery
ThinkPad R60e battery
Thinkpad T20 battery
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Thinkpad T40 battery
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ThinkPad X60 battery
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ThinkPad Z60t battery
Thinkpad R61 battery
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Thinkpad T61 battery
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ThinkPad X61 Tablet
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Sony Laptop battery

Sony PCGA-BP51
Sony PCGA-BP71
Vaio PCG-Z505 battery
Vaio VGN-FS battery
Vaio VGN-FT battery
Vaio VGN-SZ battery

Toshiba Laptop battery

Toshiba PA2487UR
Toshiba PA3107U-1BRS
Toshiba PA3191U-1BRS
Toshiba PA3383U-1BRS
Toshiba PA3284U-1BRS
Toshiba PA3285U-1BAS
Toshiba PA3331U-1BRS
Toshiba PA3356U-1BRS
Toshiba PA3383U-1BRS
Toshiba PA3384U-1BAS
Toshiba PA3395U-1BRS
Toshiba PA3399U-1BRS
Toshiba PA3400U-1BRS
Toshiba PA3420U-1BRS
Toshiba PA3450U-1BRS
Toshiba PA3451U-1BRS
Toshiba PA3465U-1BRS

Also they supply the newest DSLR Camera battery as (Canon Casio fujifilm Kodak olympus Panasonic and sony) and batetry Grip for US. They Also has Price avow, I copy it from its site : Price : will honor our advertised prices is the cheapest. If there is a price differential, please check the following:

Low-quality items are usually cheaper than retail so please ve
rify the product type

Open Box items are always cheaper than new products
If, after confirming that the price does not match the cheapest price, please contact us for assistance.

Hopes that help you.

Friday, September 18, 2009

The United States to abandon the development of new battery technology allows cell phone powered by sound waves

The United States to abandon the development of new battery technology allows cell phone powered by sound waves

According to foreign media reports, Imagine has a self-powered mobile phone that how good it will never have to charge and can keep the phones running without VGP-BPS9A/B VGP-BPS9/B. This is not fantasy, but the U.S. University of Texas professor Kim Tai Xika a recent invention. This invention allows mobile phone users to speak into the energy generated by sound waves, providing use of mobile phones, enabling mobile phones used instead of power.

Self-powered mobile phones could be sound waves into electrical energy

Cajun working on nanotechnology, through the use of the so-called piezoelectric materials, he developed a self-powered device, which does not require batteries that can replace the power supply category of Lifebook T4220 battery Fujitsu fpcbp155. In particular, card payments and a partner University of Houston have found some kind of voltage is less than a nanometer-thick body of material under the micro-size of the converted energy can be 100%. Moreover, when this material larger than this specific size or more hours, their energy conversion rate declined significantly. His findings, published in the fall of the American Institute of Physics scientific journal "Physical Review". This discovery will develop low-power electronics products have far-reaching significance, this can be developed from I-powered mobile phones without pavilion ZV6000 battery Aspire 3000 battery, laptops, personal communication devices, and numerous other computer-related electronics products.

Many high-tech products of the components are nano-level. Although the invention of Cajun small, but significant influence. He found that will enable small and easy to extend the service life of wireless products without HP PB995A. Because, MP3 and cell phone, the laptop battery life is a major problem, if you want to expand their capabilities, then they need to have a more powerful battery to support. And convenient self-powered device will resolve this problem, which is several federal agencies interested in the reasons for such devices. In fact, the U.S. Defense Advanced Research Projects Agency (DARPA) has been studying the field the soldiers how to use their conversation to obtain the energy to power their portable equipment. In addition, the sensors used to detect explosives, would greatly benefit from self-powered technology, can reduce the trouble of testing and replacement of the battery.

Cajun explained that the key to this technology is the piezoelectric body. Is a class of piezoelectric crystals are very interesting, when you squeeze or stretch it, it will produce different ends of the charge of Pavilon DV9000 battery. This effect is called piezoelectric effect. Piezoelectric effect can produce a crystal is called piezoelectric crystals. Crystal quartz is a well-known piezoelectric crystals. Piezoelectric body is not a new concept, in fact, as early as in the first century BC was the French scientist discovered. Was first used in piezoelectric sonar equipment during World War.

Now, equipped with a piezoelectric crystal element of the apparatus so that technical staff research the steam engine, internal combustion engines and all kinds of chemical equipment in the pressure changes become a reality with this XPS m140 BATTERY. The use of piezoelectric crystals can be measured or even the pressure of fluids in pipes, guns, firing shells in the barrel when the pressure of the bomb exploded when the instantaneous pressure. In addition, the piezoelectric crystal is also widely used in the microphone and quartz table. Even the car ignition also has piezoelectric crystal. Click on the button will cause the ignition of piezoelectric crystals generate impact of Inspiron 640m battery, thereby generating sufficient voltage to produce sparks and ignite fuel.

On major applications, a number of European dance floors of nightclubs and dance halls was built by the piezoelectric crystal can absorb and convert XPS M1730 battery energy to generate electricity footsteps as a way to light bulbs inside the nightclub. According to reports, the Hong Kong Coliseum is an athlete using this technology to the Pavilon DV8000 battery energy conversion into electrical energy as a means of lighting and play music. Cajun said that the application of piezoelectric crystal will be a higher level, especially when the nano-scale emergence of the piezoelectric crystal, after the application of this technology will become more widespread.

The news via batteryblog

Wednesday, September 9, 2009

Do not charge mobile phone battery too long time

Do not charge mobile phone battery too long time

Because of improper use of this small a laptop battery as a "time bomb" could explode at any time.

There are many types of cells, according to their nature of work can be divided into a battery (primary batteries), rechargeable batteries (rechargeable batteries). Disposable primary battery can not re-use, multi-mercury, including the carbon-zinc batteries, alkaline batteries, zinc-manganese batteries. Rechargeable batteries can be reused, the common are nickel-cadmium batteries, lithium rechargeable batteries. "Because cells contain large quantities of chemical substances in use, pay special attention to safety." In particular, the following practices are best avoided.

A long time to charge the phone. Cell phone laptop batteries are mostly Li-ion battery. Most people want the phone to standby longer, so he deliberately charging an extension of time, such as work began to charge home, go to bed have shown that full power, still need further charge on the night and the next morning before unplugging . But in fact, if the battery is full, to continue charging the higher the temperature continues, the battery is not in the resistance of the long-term drop off, the battery itself, heat aging can also occur at the same time, some may even be counterfeit batteries or battery (A1175 A1079) leakage explosion phenomenon.

The correct way is the third new Latitude D610 battery before the charge required to more than 12 hours, so that the battery to fully activate the batteries. After charging according to battery type and capacity of different charging time is about 1.5-6 hours, indicating the battery is already full of 1 hour charge can be added, so that both sufficient and would not damage the battery. To not more than 24 hours.

Then when the notebook computer power does not win the battery. The number of Apple Powerbook G4 battery charge is limited, on one charge, the battery on to the "retired" step forward. Recommended to make use of an external power supply, use an external power supply when the battery removed. If you plug the power several times in the day, and the notebook computer equipped with a battery, this will damage the battery more. Because each access to external power supply is equivalent to the battery charge time, battery life shortened by a naturally.

Repeated use of disposable alkaline batteries. Disposable batteries run out or throw, do not re-use or as a rechargeable Latitude D620 battery to use it. This is very likely to use or charge at a number of gas pressure generated in the process, so that the battery swelling. When the gas pressure is too large when the row did not come out, the battery may be a result of chemical reaction caused by fire or explosion.

To be able to charge the new alkaline batteries with rechargeable batteries and old. Old and new Pavilion DV2000 battery because of their life not the same, the capacity to accept are not the same and therefore I put together charging, the small capacity of the old battery is fully charged, the need to wait until after the high-capacity battery is full will stop. In this waiting process, the battery itself was filled with electricity, there is still current flows through, it's like in the expansion of charge. Once the excessive charging, the battery itself will heat expansion, destruction of the battery protection circuit may cause fire or explosion.

When charging the battery, be sure to use a dedicated charger original, otherwise they will be models inconsistent probably can not be recharged into electricity, or in the process of charging, resulting in leakage of the situation, over time will damage the VGP-BPS2C VGP-BPS2 VGP-BPS5 VGP-BPS2A battery's protection circuit, resulting in the battery explosion or other dangerous incidents.

A limited number of rechargeable batteries, if found to rapidly heat the battery, indicating the effectiveness gradually decreased and should be replaced immediately

The article Via Thirdshoping

Monday, September 7, 2009

5 Pounds free activity

5 Pounds free activity

Save 5.00 pounds buying laptop battery

Last Monday my 13 months Dell D620 battery died that just out of the fucking dell 1 year warranty. And I must go to London for a 1 weeks business trip. So I must buy a battery replacement, as I do not want to buy anything from dell, so I search a "Dell D620 battery discount" in google, after viewed hundreds reasults, I found a laptop battery Online shop now supporting 5 Pounds Free discount battery replacement.

I just order the battery from the online shop and write a review for the battery in my blog, then they really return the 5 pounds for my blog. I think this is very useful as you can get 5 pounds free and help your reader to know a laptop battery online shop service (good or bad). Below is the activity info or you can get the info here:

Hello, everybody, pay attention to here please!

Here is the marketing department of online store, recently, our company organized a coupon activity to help all our customers save money when place order on laptop batteries and adapters.

Below is the detail activity introduction for your review, hope you all join it eagerly.

1. If you have a Blog, and you update it from time to time, no matter what’s your blog subject, only except for containing adult content.

2. As long as you place order on our website and write a pertinent review of your shopping experience in our store on your blog, including service attitude, goods quality or price advantage, leave a link of the product you purchased with title (the detail product description of your order item), let me take a example on how to write the link and title, Link;, Title: ”Sony VGP-BPS2 Battery” or “VGP-BPS2”.

3. The GBP 3.00 refund is based on this blog review article won’t be deleted randomly without anticipated notification.

4. Furthermore, Blog with PR 4 or above will get a chance of GBP 5.00 refunding.

5. When you have done above process, please email us at, we will give response in one business day.

Remarks: This activity is available till Dec 25th, 2009.

The Free Credit 5£ most for their Newest laptop battery below :

Acer : BTP-44A3 BTP-42C1 BTP-52EW BTP-59A1 BTP-60A1 BTP-63D1 BTP-73E1 Aspire 1400 battery Aspire 3050 battery Aspire 5000 battery Aspire 5560 battery TavelMate 240 battery TavelMate 380 battery TavelMate 2000 battery TavelMate 3300 battery

Apple : Ibook G4 battery Ibook G4 12 battery Ibook G4 14 battery Apple A1148

Dell : 1G222 1X793 Inspiron 1420 battery Inspiron 2600 battery Inspiron 1521 battery Inspiron 1721 battery Inspiron E1405 battery Latitude D420 battery Latitude D430 battery Latitude D510 battery Latitude D810 battery Latitude D830 battery GK479 EK890 GW240 RN873 PC764 TC030

HP : PB994A PB992A HSTNN-LB31, Pavilion DV2000 battery, Pavilion DV6000 battery, PB995A, PB991A, EVO N400c battery, EVO N410c battery, EVO N410 battery, Evo N600C, Evo N610C battery, Evo N620C battery, Pavilion DV4 battery, Pavilion DV4T battery, Pavilion DV5 battery, pavilion DV5T battery, Presario CQ40 battery CQ45 battery CQ50 battery CQ60 battery CQ70 battery

IBM : Thinkpad R50E battery Thinkpad R50P battery Thinkpad R51 battery Thinkpad R52 battery Thinkpad R60E battery Thinkpad R60I battery Thinkpad R61E battery Thinkpad T43 battery Thinkpad T43P battery 40y6795 40y6797 40y6799 40y6999 40y7001 40y7003 92p1005 92p1011 92p1082 92p1101 92p1102 08k8193 08k8194 08k8195 08k8196 08k8197 08k8198 08k8199

Toshiba : Satellite a100 Satellite a200 Satellite a300 Satellite l200 Satellite l300 pa3176u-1brs pa3191u-1brs pa3191u-1brs pa3191u-3brs pa3284u-1brs pa3285u-2brs pa3285u-3brs pa3356u-1brs pa3356u-2brs pa3356u-3brs pa3395u-1brs pa3421u-1brs pa3420u-1brs pa3450u-1brs pa3506u-1brs pa3475u-1brs pa3476u-1brs pa3534u-1brs pa3535u-1brs pa3682u-1brs pa3536u-1brs pa3537u-1brs pa3479u-1brs pa3480u-1brs

The news via Batteryblog.

Wednesday, August 26, 2009

Built-in Projector, Nikon S1000pj Camera Issued

Built-in Projector, Nikon S1000pj Camera Issued

August 4th 2009, Nikon announced to issue COOLPIX S1000pj camera for Sony NP-BG1, Canon BP-511, Kodak KLIC-5001., this camera not only with mini body but also with powerful photo function, and it possess the strong projection function.

To use the built-in projector of this digital camera battery, you only need to touch one button, then you can project the photo or video on a flat wall, the image dimension can reach 40 inch in maximum. It can project photos one by one, or match the music to play it like lantern slide. It also accompany with a portable projector bracket, and a remote control which can operate the projector and release shutter function.

COOLPIX S1000pj camera adopts a 5 optical Zoom-Nikkor lens, with 28mm wide-angle that cover 3cm microspur shooting ability, the camera use a 12.10 million pixel transducer, Nikon EN-EL3E.

Compared to a common camera, 12.10 million pixel, 28mm wide-angle and 3cm microspur shooting ability and EN-EL9 are not very high, but it integrated a projector, and support to play at 40 inch, anyhow it is quite practically.

The post Via Digital Blog

Friday, August 21, 2009

Why laptop battery explode?

Why laptop battery explode?

Laptop battery is composing of enclosure, interface, cell and control circuit board, battery cell is responsible for supplying and storing the power of the laptop. Control circuit board with complex working principle and design, it controls the battery start and stop charging at proper time, control the discharge current reasonable, and it also take charge of showing the battery capacity and recycle charge times recording. When the battery in a high temperature or large current and other un-normal condition, it the control circuit board can protect the battery.

The OEM post in

The four suspicion of laptop battery explosion.

A, Battery cells interior short-circuit

The Latitude D620 battery cells has no protection function when meet large current, if single or multiple cells happen short-circuit situation, it will let cells discharge at high current. These current generate large quantity of heats will let the battery enhance the temperature, and then transfer to the other parts of laptop.

If the Latitude D600 battery enclosure is plastic material, it will deform or even get fired under high temperature, it is dangerous. The regular cells has experience strict test when out from factory, and the battery enclosure always adopt fireproof material and difficult to get fire. So the most possibility is involved with poor quality material for VGP-BPS2C VGP-BPS2 VGP-BPS5.

B, Battery cells connector wire short-circuit

The Dell Inspiron 6000 Battery, interior structure is too compact which leave opportunity for the cells. The wires in the middle are quite compact and close to the cells, if the skin of the cells and wires wore out, or the connect wires break off, then the cells will discharge at very high current and bring high temperature and cause fire final.

C, The control circuit invalidation

Sometimes, the control circuit will be invalidate for its protection part even it performed normal when use Sony NP-BG1, Canon BP-511,, when under full charge and un-normal, large current situation, the temperature will enhance and cause fire.

D Heat and abrupt incident

The laptop over heat or exterior liquid corrode, lightning strike or voltage un-normal will cause short-circuit.

All the battery spec info are from Laptop battery

Wednesday, August 19, 2009

Lenovo recall battery again

Lenovo recall battery again

Laptop battery have problems again? Lenovo today announced the recall all battery,

Lenovo Group, the official website linked to the issue of a replacement lenovo battery free of charge information. Although the relevant responsible person stressed that the issue of batteries does not pose a security risk, and intention to play down the incident, but still caused concern to the industry.

ThinkPad users as a result of a small number of reports, there can not charge laptop battery or low battery capacity, such as short battery life or a sudden drop in power the question of scale. Legend explains that "the battery can not repair the damage" or "battery can not charge" the emergence of information means that the battery can not discharge or charge. This is a permanent battery failure, but does not constitute a security risk. And low battery power, it means that time is short battery life, a sudden drop in the power scale.

If battery failure due to this problem, Lenovo will be a free replacement battery. "The official line of Lenovo Group, Lenovo areas indicate the scope of the replacement of batteries, announced the recall ThinkPad R60 battery, R61, T60 battery, T61 battery, X60 battery, X61 laptop battery part number. Lenovo said that all official information to explain the replacement of the main , is not to say that the above-mentioned 10 models of all models have the issue of batteries. users through the installation of diagnostic tools to check the battery, it still can not predict the number of batteries need to be replaced. windows users can use this tool to detect, to to determine whether battery failure due to this problem and to comply with the conditions of a free replacement.

In fact, this is not the first time the issue of Lenovo laptop battery action. The earlier outbreak of Sony "battery door" incident, Lenovo and Hewlett-Packard, Dell and other PC issues are also trapped in the work to improve the battery recall.

All the battery spec info are from Laptop battery

Sunday, August 16, 2009

Maximize, battery life

Maximize your battery life

When I first got my laptop (8 mos. ago) my laptop battery life was about 2 hours 45. Now after daily use (mostly with plug but using battery as well) it is down to 1.5 hrs which is basically useless. I have tried draining totally recharging etc and still only 1.5 hours. SO I am buying a new one. My question is how do I make my battery keep its charge so I can have it when I need it?

I originally wanted to title this article "Why does my Ibook G4 14 battery life suck?", because I know that's exactly what it feels like when the battery life gets shorter and shorter. My oldest laptop has about a 20 minute lifespan, so in many ways the battery is really nothing more than a glorified UPS. Not that that's bad, but it does limit the laptop's portability.

I turned to a friend, Jerry Foutz, for some help on this one. Do a Google search for Power Supply Design, and Jerry's site, SMPS Technology, is the top result. Jerry knows power supplies.

It turns out that the single, most important aspect to maximizing battery life is something that I wouldn't have thought of: matching the battery to its charger. In Jerry's words: "Make sure your Ibook G4 12 battery and charger match and you have a quality charger. About the only way you can maximize the probability of this happening is to buy both from the computer manufacturer for the exact computer model."

"...even small differences in output voltage of the charger can have dramatic impact on the lifespan of your Dell laptop battery..."Apparently even small differences in output voltage of the charger can have dramatic impact on the lifespan of your battery, by either under, or over-charging. "If you get a low-cost charger and it is off by as little as 10 mV (millivolts, 1/1000 of a volt), you will also get less than optimum performance." An example Jerry shared is that a 4.1V cell charged at 4.050 V might be good for 4,000 charge cycles. Increasing the charge voltage to 4.250, a difference of less than 1/4 of a volt, can reduce this down to less than 100 cycles.

I had no idea that batteries were that sensitive.

I'm also glad that I've purchased my Toshiba PA3451U-1BRS batteries, extra batteries, and chargers from the manufacturer at the time I got my laptop. That, further, minimizes any manufacturing differences that may occur over time.

The number two factor in battery life? Temperature.

The fact is that laptops just aren't designed for ... well, for laps. If you look at the bottom of your laptop you'll see it probably has feet (or more likely, bumps or rubber pads) that lift it off of any flat surface you might put it on. That creates very important space for ventilation. If you block that space, with say your lap, it's likely that you'll be causing the laptop Inspiron E1705 battery to run hotter than it should. If you do this regularly, you'll likely shorten the lifespan of the laptop's batteries.

Again, in Jerry's words: "If you have your laptop on your lap and it is burning you, you are shorting the battery life and charge-cycle capability because you have interfered with its cooling system."

If you do like to use your laptop on your lap, there are various "laptop desks" out there that will provide you a flat, or even grooved surface (for even more space and air flow) on which to comfortably place your laptop Inspiron E1505 battery. My wife and I actually each have a laptop desk from LapWorks.

Temperature cycling - allowing the laptop Lenovo 40Y6799 to become very cold and then warm, repeatedly - say by leaving it in your car overnight in cold weather regularly can also adversely impact the battery's life.

A concern that I've had for a long time is whether or not leaving a laptop plugged in for extended periods of time would harm the Pavilion ZD7000 battery. Today's designs pretty much expect that type of usage, so it's not the issue I was afraid it might be. Good thing, too ... my laptop is plugged in and running pretty much 24x7.

Finally: "All this assumes a well designed power supply (including charger and Latitude C600 battery). Unfortunately, not all designs are perfect and the layman has almost no way to judge the quality of the design. You pretty much have to trust the manufacturer and his reputation."

All the battery spec info are from Laptop battery

Thursday, August 13, 2009

The answer for laptop battery frequent asked questions

Last week I buy a Dell notebook from, 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 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.

All the battery spec info are from Laptop battery